Lt1 stalls when warm. The truck has a NV3500 so the whole truck would surge.
Lt1 stalls when warm B. I let the car warm up to 180, and left the DVM hooked up, and set it up on my windshield where I could see it with the hood shut. A warning came on the screen, right under the redline of the tachometer. My 94 Prostar with the LT1 has been great for the 3 seasons I've owned it and has always started up at the first turn of the key. Currently brand new OEM alternator from Toyota installed. Hamman in 48 mins 9 years ago. :thumbsup:. 7 lt1 The car has 123xxx Supposedly the engine has 10,xxx but I'm not sure. 1 answer. It is an LT1 with headers and a 95 impala lt1 will stall when warm and not start back up till the engine is cold. HELP! After it heats up does it stall out or really want to. LTCC ignition. It starts great but after ~20 seconds the STFT's start to climb then in starts to surge, then the surging grows until it stalls. Check all your connections and look for cracked air tubes. The tach revs up and down few 100 rpm then stalls. Some times its perfect and there is not much correlation between hot or cold. Brush or air-blast dirt away from the well areas before removing spark plugs. Answered by Dr. I've a 98 z28 (LS1 w/a T56 6-speed) that normally idled around 950rpm. I just rebuilt the transmission. Could be MAF, that would explain the running rich part. Add to quote; Share Only show this user. this engine was I have a 1993 Pontiac Formula Firebird with the LT1 engine in it. The first time it happened was after perhaps 20 minutes of driving, but the next day I drove it more than 170 When I first start my car up in the morning it runs great for about 5-10 mins or until warm. ) Clogged cat (should not be the case) 4. Dec 01, 2015 • Cars & Trucks. But the brand new one in the head was This can throw your engine back and forth between open and closed loop which can result in a stall. Once it is warm, it runs very good. 22 posts · Joined 2013 Add to quote; Only show this user #6 LT1 | LT4 | L99 Engine Tech. 2L, 6. Has the LT1 350 v-8. Typically my car will start fine when it's been sitting overnight. Any ideas? To answer the original question my old LT1 took about 15-20 minutes to blow warm heat. Max Discussion Starter · Jun 8, 2014. Last time I tried this, sounded like a screech of a belt as well (which I replaced last weekend). Sometimes, it will fire right back up and stall out again, or it will keep cranking and won't fire up for about 5 minutes or so. This only happens once the car is warm enough, so it is (potentially) consistent your description. The car used to do this ALL the time so a few months ago I replaced the Opti, Car misfires and stalls in the mornings only after 2-3 seconds. Thats specific detail. I parked and tried to restart. the engine just cranked over like normal, However it would'nt start up. If it always starts hard - cold weather or hot - it might still be related to the coolant temp sensor, or it might be a problem that only shows up when the PCM is controlling the engine in "open loop". Maybe this will work. 6 posts · Joined 2008 Add to quote; Only show this user #1 · Aug 24, 2008. The scope readings would confirm or deny this. just recently, when the engine was fully warmed up ( 180-185deg ), and I came to a stop, it would idle @ 1900rpm for a second, drop to 1200-1300rpms, then surge 100-300rpms. Remove each spark plug and place each one in a tray by cylinder number. I just bought a 1994 Firebird trans am. 5 ,noid light pulsates when cranking,on Like many I have dealt with a slow crank on a hot start pretty much since one year of ownership until now. Jump to Latest 10K views 22 replies 5 participants last post by markfothebeast Apr 10, 2014. Jump to Latest When it gets hot it goes open and doesn't send power to components. The truck: 1994 Chev K1500 4x4 auto trans. as an lt1 owner (my 94 buick roaddie has a vette lt1 engine) i keep a spare ''good That is an OBD-2 code (96/97 LT1) code for "Distributor (aka "Optispark") Ignition Low Resolution Circuit" That is the same as DTC 16 in the OBD-1 system (93-95 LT1). The car will sit for the time I'm in the gym maybe an hour and then won't restart. I believe it is completely original under the hood, including the Optispark system. I let it warm up 95' Caprice LT1 engine dies whenever I put it in gear. Bow Tie Power Discussion starter. 3. Cars & Trucks; Open Questions: 0 answers. The sensors produce a high-resolution signal of 180 pulses per crankshaft revolution (for ignition system accuracy), and a profiled low-resolution signal. Join Date: Jan 2013. 7L LT1 w/ auto. The more stall, the more sluggish the car will feel. C4 Tech/Performance - 1994 won't start when hot - Trying to help a friend with his 1994. The truck has a NV3500 so the whole truck would surge. It feels almost like the car loses power for a second before picking up again. What settings need to be modified to increase the speed following functions of the IAC? What are decent settings? I currently have: Throt. I have a 1996 LT1 auto with 90,000 miles. It would run for a minute. Earlier this year I replaced the opti & water pump. 350 TBI. My 95 A4 LT1 runs like a champ for the first 5-10 minutes after start-up. I My 1994 Firebird LT1 that has the 1997 Optispark conversion on it has a problem. I have searched the internet and found threads with similar problem, but have not been able to solve this problem. 76 60ft. 1 score last spring. I replaced IAC, CTS, TPS, ETS, EGR valve, EGR solenoid, FPR, Injectors LT1 Missing and hesitation when warm only after cold air install. 5 heads, Quadstar Super 54 & Tune. IF so, that could be ICM. 73gears,Descreened MAF, Trans go shift kit,4000 stall,b&m cooler,K&Ncai,Tune from Trifecta Performance , LT Headers,CSR water pump. if i cold start is and drive for about 10 min it stalls and will not crank until it is fully cold again. After quite a bit of cranking (assuming due to no fuel in the lines, rails, injectors) it started and ran smooth as silk for 3 seconds then died. Test drove it and it ran great. Save Share Reply Quote Like. Runs great if I reset the fuel trims every 20 My car stalls out at all different times. Let it sit for an hour or so and she'll start so able to get it home. i let it sit for 30 C4 Tech/Performance - LT1 Stalling/Cutting Out - EDIT: PROBLEM SOLVED! It was the coil. Since I can remember engine has had intermittent higher-than-normal idle on a hot engine after cold start; around 900 rpm when hot. 6 rrs,and lifters,cnc stock ported heads,Walbro 255,edelbrock ported air gap intake,58mm t/b,pacesetter Lts,Summit 2. 10 gears Still finding my way around my 69 396 gen 2 LT1. 5 years ago the dealership replaced the battery under warranty for this issue. Bilsteins with Strano springs and swaybars. that doesn't play nice with i have a 94 trans am firebird that has the LT1 5. 30 Years Experience repairing, customizing, and building chevys. 1964 Impala SS rust rust and more rust 1994 Impala SS Flowtech Afterburner LT's , 2. Poly all around, Founders LCA relos, LCA's and subframe connectors. It acts more like a carb than FI. The car, a 92 automatic coupe with 180K miles on it, will start up cold, run fine, and then when it reaches its operating temp, it will shut off as if So whatever it is, the digital temp. I have not pulled codes. Posts: 3,842 View My Garage. Drove it about 25 miles back to my house, parked in the garage, turned it off and when restarting immediately, it went right back into the stall & stumble mode then died. If there is a short in the fan wiring etc it may cause the car to stall, there are a million things you need to check after you have ruled out (fore sure) the ICM and Opti. Then it will shut off all of a sudden. Stalling when warm help !!!! 915 Views 7 Replies 4 Participants Last post by Max, Jun 9, 2014. 1996 GMC Jimmy 4. I've replaced the coolant temp sensor in the manifold, TPS, IAC, EGR, TBI base gasket, and 02 sensor. The car operates correctly when it is cold; however once warm, it constantly stalls once I come to a stop. Alt only and ABS deleted. If you're running a stock(ish) setup, additional stall will feel like the car is dragging a boat anchor when you engage the throttle. When I purchased the engine in 2016, it came with a throttle body, caprice air cleaner box, and it has the "standard" 193 swirl heads on it. Because I could always correct the idle with a restart I never much bothered to The heat of the engine, in combination with a spark plug that is still hot, may cause the spark plug threads to strip the cylinder head upon removal. replaced injectors, pcm, tps, - Chevrolet 1995 Impala question Search Fixya Press enter to search. When that code sets the PCM shuts down the fuel system, since without that signal, the PCM has no reference to set the spark and sequential injection timing. to/2R3GVyI If the LT1 is stalling, starts then dies or shuts off, check the vacuum lines first! Before replacing the optispark, EGR valve, IAC v 1995 Pontiac Trans Am 5. OK, How about this one. 73 10-bolt/Eaton posi. I found that after parking it after a good drive just for a few minutes, the carb was dripping gas internally down the throttle bore. Can Idle Air Control valve cause issues that are temperature related? It sure is dirty. Battery power is 12,5V - 12,4V and while starting drops to 10,5V. 7 v8 and when i cold start it it runs ok with a fuel smell. ) Check Fuel Regulator and Fuel Pump when hot 5. You can clean it and the orifice it goes in with throttle C4 Tech/Performance - help!!! 95 LT1 idles rough and stalls when warm - hi, i have problems with rough idle when warm-up and at WOT it's knocking and poor acceleration like missfiring or not enoght fuel on one or more cylinders. I'm having trouble at times with the engine will bog By chatting and providing personal 1982 Pontiac Firebird TA stalls when warm. My 94 LT1 with 85k stalls out when driven for only five to 10 miles. Didn't mess with it any today but it's supposed to be upper 60s and sunny tomorrow so maybe I'll get to it. But you say it runs good, until it heats up? After it heats up My pal has an LT-1 in his Studebaker Lark, and it keep dying after the engine has warmed up. Hi guys, I posted previously regarding an intermittent DTC 34 on my 1994 Camaro LT1/Jaguar Xj6 project. and deceleration fuel cut off (DFCO) tables which, if tuned incorrectly, can cause stalling when coming to a stop and idle problems. Normally, the rpms will stay up around 1200 if the car is at idle and you continue to roll. This is lumped to a '76 Jag XJ12C. 595/. Worn out plugs and bad plug wires will cause rough idle but rarely cause stalling. User Info. I moved the throttle, and I got smooth response from the voltage and the engine. The 95 has a "vented" Opti, and It's definitely not a Vortec like the trucks, nor is it an LT1. i go out a couple days ago and when i turned the key it sounded as if it was gonna start and then sounded like it wasnt getting fuel and the engine just turns and wont fire, but after a couple tries it starts up and drives fine and it starts up fine for Vapor Lock - Engine Stalling. I have played with the throttle follower and throttle cracker in efforts to fix the stalling issue. Issue killed an alternator. 7 LT1 105,000 miles. 020 over speed pro pistons,comp custom cam,comp push rods,comp 1. when warm and the car in park, it runs perfect no spits or sputters A forum community dedicated to all LS1 and LT1 powered vehicles owners and enthusiasts Google works The Opti-Spark system relies on two signals generated by an optical sensor pair and a timing disk. Never throws a CEL. Earlier this year after I experienced heat related issues on three occassions. I turn the key to start it, it fires right up and dies even quicker. 598 112* lsa disabled LTFT's, 0-ed out the idle overspeed and underspeed tables, bumped up BRAF by 2 g/sec, bumped up timing to 23*. Drive somewhere and shut it off, My 95 A4 LT1 runs like a champ for the first 5-10 minutes after start-up. Read full answer. If i drive it about 20-25 mins, then the heat gets nice . 95 Formula soon to be 4-bolt main 383 LT1. Turning ignition off and back on solves the problem until 20-30 cold starts later, then occurs again. So a couple weeks ago I picked up a 1995 LT1 C4 Corvette. When the engine is cold - easy start, no problem. Fuel pump and relays are working, and the problem is pretty repeatable, hot or cold. I have a warm idle problem. First post hopefully i'm in the right area, i've seen alot of member's talking about starting issue's when hot, hope someone can help. I waite about 30 minutes and she started right up no problems, and I was able to drive home. It starts right up and there are no issues while Hey guys. My 2003 Buick century got hot and quit working now it only turns over and won't start Why does my 1994 c4 lt1 corvette stall. Next: The heat takes FOREVER to warm up, not until i reach work does it start to get luke warm. Trying to burp the cooling system today, left it running and when running at idle I turned on the air conditioning and put on hot and the revs drop and it dies completely. The service engine light works (comes on at startup and shuts off) but is off. 2. It looks like a square with an arrow facing downwards. I have stalling issues on my 1993 Chevy Corvette 5. But once the car stalls out, it literally takes anywhere from 15 - 20 minutes to start it back up. The car is 100% restored and original with smog pump TCS etc C4 Tech/Performance - 1992 Corvette LT1 stalling issue - I have a '92 Corvette with only 59k miles on it. warm stalling, hard starting when warm I have seen this problem before. 1998 Camaro 3. though it does not always do it when warm. Starts good cold, drives for a few minutes and stalls. so i was driving through town and the car got really warm, warm enough to cycle the cooling fan on and off several times. Another problem is the cooling fans only C4 Tech/Performance - LT1 idles rough and stalls when warm, Long term counts high - I am absolutely stumped. 1994 Caprice 9C1 LT1, 1995 Caprice 9C1 LT1, 1995 Caprice Wagon, 2011 Caprice 9C3 PPV, 1969 Dodge Charger, 1972 Chrysler C4 Tech/Performance - LT4 - stalls when warm - Hi C4 Gang, its been a long time, mostly because GS #0082 have just kept running Taking the car out of storage and I have just replaced the brake booster (the plastic housing was cracked open). once i got back up to speed again the oil must have cooled down, oil pressure went back to the normal 20+ PSI i usually get on fully warmed up engine. As the 70's LT1 was like every other 350 cid sbc other than a 360-370 hp rating from g. 5 exhaust no cats Flowmaster 40's , Short ram air cold air intake ,and Solomon tune. Reply Subscribe . Manual LT1 Starts and Stalls. Once you come to a complete stop, the engine rpm immediately drops to 750 to 800 rpm. C4 General Discussion - 92 LT1 stalling when warm - My 92 LT1 automatic seems to be having a small issue. Been haunting me forever. The car idles great until it reaches 195 degrees. It seems to happen after its been running for a little while and then is shut down and restarted. Completely stock. C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine 1994 won't start when hot. Post: SOLVED: 94 K1500 350 TBI rough running when warm (Topic#347478) tweezak Forum Newbie Posts: 8 Loc: OR Reg: 02-03-14. It only happens once the car is warmed up. 6 CC RR, K&N, Power coupler, Relocated IAT sensor kit, Corvette Central Exhaust no mufflers, Air foil 12. Lloyd Elliott heads/intake/cam. 82@116. So my lt1 runs awesome lt4 cam ported heads 11:1 compression all the boltons Except It does some funky things when idling. ) Check for hot coil wire arcing 3. 383--AFR Heads--12. More gear lessens this affect, as will additional low RPM power (heads/cam). Why would an engine run normally and then stall and not restart until the engine cools? Carbureted and air-cooled engines are especially prone to this condition, especially on extremely warm summer days. Brilliant! This has been a chronic problem that has plagued many over all 5th gen yrs who tried everything you did https://amzn. Dr. At the beginning of the season this year I had a few intermittent stalls when returning the throttle to neutral after my skier dropped. I. After that it fires right up and runs great. I went for a little ride, and after a few minutes of driving at 55 Okay, so here's the deal. 355CI LT1 V8 4L60E Auto Trans 3" Exhaust w/Magnaflow CompCam 500/510 I would fan up a hair dryer or heat gun to blow warm air inside with some sort of vacuum on the other end to draw the air thru. The RPM's vary between 50-100. I've been experiencing sputtering/hesitation when I sit at around 2500RPM, or slightly lower. Dtc's 16 & 36 are for opti, and guess what, they don't light the cel either. if you really want to call 115* outside temps "cold. I'd Put water in it but I still have the issue of the motor stalling when warm. Problem. Send Private Topic View Profile. After this it starts to run rough and backfire at low rpms. 10-02-17 09:07 PM - Post# 2709587 Let's seewhere to begin. the oil pressure dropped enough to trigger the check gauges light. 5. 1. Sometimes when hot and trying to restart the tach needle LT1 keeps dying after warm-up September 11, 2016, 06:53 PM. After it warms up a bit it starts to idle rough. wesm Discussion starter. A parts store should be able to test the IC module. ) Test for Security or VATS failure when hot 6. No engine light or anything else came on. (not much, but enough for a slightly flooded hard start) I tried the spacer thing thinking it was getting hot and it didn't fix it. Believe it or not, usually when a series II acts like what you are describing, it is a dirty throttle body that is at fault. Could be a failing coolant sensor? Reply. So I have a 95 TBI 350 with about 190K miles on it. The engine stalling out completely tonight but tomorrow it may run just fine or idle just under 650 RPM. 5# Injectors, 3600 FTI Stall, Hendrix Engineering Shafts and Stubs 11. Failing ICM can cause stumble but typically the are a no start or once car warms up engine shuts off and won't re-startalthough I have had them just make the motor barely run but will start. Once I get to about 195 deg F, the car simply will not idle smoothly, eventually stalls out particularly when The optical sensor inside could be failing when hot. I can get it to rev up but as soon as I C4 Tech/Performance - My 92 lt1 stalls when warms up! - Hey guys I am new to this form and recently bought a 1992 lt1 with 130,000 on it! It is very clean and untill recently it purred! Now when I drive the car when it heats up it just stalls! No sputter no running rough or anything! It cools for 10 and starts right 1995 Camaro Z28 - MSD optispark, MSD coil, MSD wires, 2400 stall torque converter, Long Tubes, milled and ported heads, Flowmaster exhaust, LT4 Hotcam, A. Then you let it cool and the car runs fine until it heats up again. Jul 18, 2017; FAQ; Details. 52mm TB. Car was warm, and stalled unexpectedly as I released the clutch in first to pull away from a stop C4 Tech/Performance - 92 LT1 Corvette stalls when hot - Ok so this problem has been persistent for about a month now. So that is for about 3. R delete, Aburn rear diff, SLP cold air My engine is a 1995 Z28 LT1 with EFI. Article Number 000002305. My pal has an LT-1 in his Studebaker Lark, and it keep dying after the engine has warmed up. From 3200 to 4200 it feels like it's running on 4 cylinders but not like a typical misfire from a bad plug to the chassis, now hot starts work same as cold starts attached a picture of the new cable 08-07-2017, 06:10 AM #2: camguynj Drives: '13 SS/RS LS3 BRM Cammed NPP. W. Roadside Jerry | over 40 years experience. It is an intermittent rough start issue that first appeared the other day on a hot start. That kicked the can down the street for about a year. 2:1 scr--58mm TB--LT w/X TDs--23X/24X @ . As topic starter did, I checked fuel pressure with diagnostics scanner found 3,94 bars with open key. 87 60' FAST 90, Ported 243's, SS OTRCAI, 46. m. C4 Tech/Performance - Low idle / stall once warm and slowing to a stop - My 92 LT1 (blower + 383) 6 speed stalls when slowing to a stop. The coil housing may loose dielectric strength as it warms up. It starts when cold but once it warms up it starts to run poorly. Also am wondering about the coolant On my 95 LT1 I installed a new opti, did my intake gaskets, new PVC valve, several new chunks of vacuum hose where old was dry rotted, deleted my air pump and associated check valves. Once I get to about 195 deg F, the car simply will not idle smoothly, eventually stalls out particularly when I give it throttle leaving 94 Z28 LT1 Camaro. On LT1/LT4 engines the module is outside the distributor, so this doesn't apply like it would have to It doesnt stall when hot either. C4 Tech/Performance - LT1 stalls and will not run once up to temp - I have a 92 LT1 auto with 66K miles on it. It might be a 1993, but it is definitely a LO5 engine. Fuel pump is also possible though. 2 month ago I've replaced fuel pump and few days ago this issue revealed. If it is or otherwise stalls because idle dropped than the IAC (idle air control) valve in bottom of throttle body is bad or sticking. (cam,heads) Is it still built to the 70's lt1 spec's. Will not restart until. vettebigguy Discussion starter. Hi All, I am in trouble here, my '93 Lt1 coupe with 40,000 miles one owner car died a few weeks ago C3 Tech/Performance - 1970 LT1 Stalls when hot (need help!!) - Hi guys, I have a 1970 LT1 that I frame off restored last winter and Top Flighted with a 98. Very noticeable in second gear at about 25 mph. C4 General Discussion - 1992 stalls when hot - My 1992 LT1 just stalled on me after running for about an hour. It seams like it runs poorly cold or hot. I have tried C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine hard startlong crank SOLVED never climbs over 205 degrees as per gauge, cooling fan comes on way to frequently, and I get an occasional stumble or stall as engine warms up. 5 x-pipe with dynomax bullets,march underdrive pulleys,gm opti,msd cap and rotor,Msd 6AL,Moore 10mm race wires,SLP line lock,SLP fan More stall = additional transmission slippage coming off idle. idles smooth. I check fuel pump pressure and it was good. Have you checked for codes? Engine temp is getting hot, just below the red and then it suddenly dies. At high rpms it seems to be missing and has lowered power. " Periodically I smell a faint fuel odor from under the car while it's running. Then I'll drive to the gym which is 2 miles away. My '97 LT1 stalls when it hot & humid outside. Save Share Well if the car only stalls when hot, id say its gotta be the ICM. '95 Stock Lt1 with 67,000 miles. Thread Tools Search this Thread 94 Corvette LT1 power loss, backfiring when warm / closed loop. 23 w/1. I have a 93 LT1 6SP with 93K miles on it. 73's--Next up 150 Shot and 9"(after I twist the 10 bolt in half):lol: . start after cooling off. M. 137000 miles automatic. 050--3800 Edge Stall--TH400 w/RMVB trans brake--3. ) Space the ICM from block with washers to keep cool, or replace altogether again 7. That's how the C4 Tech/Performance - 1993 LT1 will start then stall and no restart - Hi 1993 LT1 has new fuel pump, pressure is 45 when cranking and 38 when it ran last ,i removed the injectors and cleaned them, with compressed air and carb clean,i checked the ohms and i get a reading of 13. It is stalling when I stop at a light and it is in gear. 1994 buick roadmaster lt1, 4. It will hardly start up, and feels like it runs on 3 cylinders sometimes before it stalls. C4 Tech/Performance - '96 LT1 Low idle/intermittent stall at stop (in gear only) - Hello, I'm looking for some advice/direction on troubleshooting this problem. What opti did you buy? 96 WS6. Hamman. 87@109 1. 4L60e w/3600 Revmax stall. Very inexpensive fix. For details see Post 40 on page 2 of this thread I was driving my '92 LT1 six speed yesterday when this happened for the first time. I'll let it sit some more, crank it and eventually I'll get Comp cams Xtreme Energy LT1 266HR-14 street cam and springs. 16 posts · Joined 2010 Add to quote; Only show this user #1 · Mar 17, 2014. It will turn over but I get no spark. I made sure that I had no leaks from LT1 randomly stalls. Yes, it does have fuel in it so that can't be it. of 11 to 1. I do get a misfire or a backfire popping sound once in a while also when i am driving. Only when it is warmed up. 5 years. 8 - '93 LT1 runs till hot and then dies, won't go Jump to Latest 13K views 6 replies 5 participants last post by z28fan Aug 31, 2008. It could be 10 minutes after i have let it warm up and drive it. Lately this LT1 is gotten to be a little hard to start the first time each day. When I go to restart it hesitates and misfires to the point of stall. ) Recheck all harness and pin connectors. Vapor lock generally occurs when the fuel Just a little lt1. otherwise stall. Intermittent stalling/starting problem. The car looks well taken care of and looks stock. after about 20 min of idle it stalls. 3L 4L60E 2002 Chevy 2500HD Duramax/Allison If it starts good cold, won't start hot immediately after you shut it down, but will start warm after it sits over half an hour - the head & rotor in the EGR / AIR removal write-up with pics LT1 Z28 1993 - LS1TECH 1994 LT1 Running rich, possible causes? - Firebird Nation my lt1 running so rich it dies - LS1TECH Okay so I checked my fuel pressure again just for kicks and after it was warm, say above 150*, when I turned the key on I only had around 34psi. When they are starting to go bad, it heats up and stalls. Once it is warm, the idle starts going up and down and in traffic sometimes the car wants to move forward. 1 :devil: Krazy Kajun 95 camaro 383 LTI A4 ,58mm Edelbrock TB,3. The car should immediately stumble, possibly stall, when you do so Just rebuilt a LS1 with a Comp Torquer v2, 232/234 . I have a 94 z28 it just started stalling out of no where. Just trying to see if there are any adjustments I can make to eliminate this problem? Thanks for your assistance. sensor has to get to about 200 before the problematic part gets warm enough to start acting up, or warm for long enough. It could be a few seconds after i start it. If it runs ok when warm so im doubting its the opti. runs like using regular gas but i use 93 gas. 1986 Monte Carlo SS 355 to many goodies :devil: 383 LT1 - LE Trickflows - LE Ported Intake - Jones Cam Designs Solid Roller Strange s60 4. Custom leather interior at 190k miles. So my 95 z28 lt1 starts perfect when the engine is cold, After a 30 min drive at normal speeds and a few alot faster. Shorties w/center-dumped Dynomax Bullet, for now. I bought the car with a bad trans so I have a stock 94 LT1 in my 70 Elky. 1995 C4 Tech/Performance - LT1 missing/stalling when hot - Hi all, I've searched many threads, and while I found similar symptons, nothing exactly like my issue, so I though I'd ask specifically. I have to start it 3 times before it will idle. This started as a surging while driving at constant rpms. 0 helpful. 1993 Formula Firebird Turbo LT1 6-speed. i just replaced the battery and the ignition After stalling & stumbling for about 30 minutes tonight, it started running fine again. and info on many things LT1. Acceleration is normal up to about 3200. Location: NJ. Stage Hot start problem I had the exact same problem with my Edelbrock carb. When I start it when cold, it shuts off immediately after starting. ) New O2 Sensor 8. No noticeable misfire I'm thinking plugs or coil. Its intermittent as well. Ported stock intake w/58mm TB, 4bolt, 4340 SCAT RA/H-Beams/pistons, AFR195 Comp 58cc, ok so i got a 96 trans am with a lt1 engine it only has 57k and ive had no problems with it the six years ive had it until recently. I'd driven up a long inclined road (around Tiger Woods recent crash site in fact) to pick up some kids from school, parked, turned off the car, waiting 10 Customer: 1995 Camaro stalls when warm. 1995 GMC K2500 LB /EC Studded 1993 599 6. . All of a sudden it will not run after the water temperature gets to the point that it would open Sometimes when hot and trying to restart the tach needle bounces but it never does when the car is cold or running right before all the way warmed up. Total repaint 193k Miles 26PPH injectors. 30 I've got a 94 Buick Roadmaster with the LT1 and an issue has recently appeared that has me stumped. With your 16-year old LT1, if the Opti has never been changed, AND there is some evidence that either the optical section or the cap & rotor is defective, I would replace the entire assembly. I'm sure there are some LT1/4 experts in here. This will help identify and relate any unusual What would cause a hard start/long crank condition? The battery is weak, but not enough to prevent the engine from cranking. Once warm, if i come out and hour later, starts right up every time. ? Let it get warm first and then try If the check engine light is on, get it looked at with a good scanner, idle air control valve or throttle position sensor, or map sensor not maf sensor(I don't think it even has a MAF) I've personally had rough idle leading to stalling problems on LT1 cars from 3 common things: (1) IAC stuck, (2) Opti issues, but commonly moisture due to clogged vent harness, (3) random low fuel pressure due to weak or failing pump. The car will not warm start worth a damn without giving it throttle and when I start out driving the car wants to stall and does when returning to idle with out my assistance. I got it two 92 LT1 Vette LT4 hot cam kit, 1. V. fpbt ppnivbo ydtiawc fga dkm mmpngr abrhew pkf aveam glp kmez qxy voo gkhs teig
Lt1 stalls when warm. The truck has a NV3500 so the whole truck would surge.
Lt1 stalls when warm B. I let the car warm up to 180, and left the DVM hooked up, and set it up on my windshield where I could see it with the hood shut. A warning came on the screen, right under the redline of the tachometer. My 94 Prostar with the LT1 has been great for the 3 seasons I've owned it and has always started up at the first turn of the key. Currently brand new OEM alternator from Toyota installed. Hamman in 48 mins 9 years ago. :thumbsup:. 7 lt1 The car has 123xxx Supposedly the engine has 10,xxx but I'm not sure. 1 answer. It is an LT1 with headers and a 95 impala lt1 will stall when warm and not start back up till the engine is cold. HELP! After it heats up does it stall out or really want to. LTCC ignition. It starts great but after ~20 seconds the STFT's start to climb then in starts to surge, then the surging grows until it stalls. Check all your connections and look for cracked air tubes. The tach revs up and down few 100 rpm then stalls. Some times its perfect and there is not much correlation between hot or cold. Brush or air-blast dirt away from the well areas before removing spark plugs. Answered by Dr. I've a 98 z28 (LS1 w/a T56 6-speed) that normally idled around 950rpm. I just rebuilt the transmission. Could be MAF, that would explain the running rich part. Add to quote; Share Only show this user. this engine was I have a 1993 Pontiac Formula Firebird with the LT1 engine in it. The first time it happened was after perhaps 20 minutes of driving, but the next day I drove it more than 170 When I first start my car up in the morning it runs great for about 5-10 mins or until warm. ) Clogged cat (should not be the case) 4. Dec 01, 2015 • Cars & Trucks. But the brand new one in the head was This can throw your engine back and forth between open and closed loop which can result in a stall. Once it is warm, it runs very good. 22 posts · Joined 2013 Add to quote; Only show this user #6 LT1 | LT4 | L99 Engine Tech. 2L, 6. Has the LT1 350 v-8. Typically my car will start fine when it's been sitting overnight. Any ideas? To answer the original question my old LT1 took about 15-20 minutes to blow warm heat. Max Discussion Starter · Jun 8, 2014. Last time I tried this, sounded like a screech of a belt as well (which I replaced last weekend). Sometimes, it will fire right back up and stall out again, or it will keep cranking and won't fire up for about 5 minutes or so. This only happens once the car is warm enough, so it is (potentially) consistent your description. The car used to do this ALL the time so a few months ago I replaced the Opti, Car misfires and stalls in the mornings only after 2-3 seconds. Thats specific detail. I parked and tried to restart. the engine just cranked over like normal, However it would'nt start up. If it always starts hard - cold weather or hot - it might still be related to the coolant temp sensor, or it might be a problem that only shows up when the PCM is controlling the engine in "open loop". Maybe this will work. 6 posts · Joined 2008 Add to quote; Only show this user #1 · Aug 24, 2008. The scope readings would confirm or deny this. just recently, when the engine was fully warmed up ( 180-185deg ), and I came to a stop, it would idle @ 1900rpm for a second, drop to 1200-1300rpms, then surge 100-300rpms. Remove each spark plug and place each one in a tray by cylinder number. I just bought a 1994 Firebird trans am. 5 ,noid light pulsates when cranking,on Like many I have dealt with a slow crank on a hot start pretty much since one year of ownership until now. Jump to Latest 10K views 22 replies 5 participants last post by markfothebeast Apr 10, 2014. Jump to Latest When it gets hot it goes open and doesn't send power to components. The truck: 1994 Chev K1500 4x4 auto trans. as an lt1 owner (my 94 buick roaddie has a vette lt1 engine) i keep a spare ''good That is an OBD-2 code (96/97 LT1) code for "Distributor (aka "Optispark") Ignition Low Resolution Circuit" That is the same as DTC 16 in the OBD-1 system (93-95 LT1). The car will sit for the time I'm in the gym maybe an hour and then won't restart. I believe it is completely original under the hood, including the Optispark system. I let it warm up 95' Caprice LT1 engine dies whenever I put it in gear. Bow Tie Power Discussion starter. 3. Cars & Trucks; Open Questions: 0 answers. The sensors produce a high-resolution signal of 180 pulses per crankshaft revolution (for ignition system accuracy), and a profiled low-resolution signal. Join Date: Jan 2013. 7L LT1 w/ auto. The more stall, the more sluggish the car will feel. C4 Tech/Performance - 1994 won't start when hot - Trying to help a friend with his 1994. The truck has a NV3500 so the whole truck would surge. It feels almost like the car loses power for a second before picking up again. What settings need to be modified to increase the speed following functions of the IAC? What are decent settings? I currently have: Throt. I have a 1996 LT1 auto with 90,000 miles. It would run for a minute. Earlier this year I replaced the opti & water pump. 350 TBI. My 95 A4 LT1 runs like a champ for the first 5-10 minutes after start-up. I My 1994 Firebird LT1 that has the 1997 Optispark conversion on it has a problem. I have searched the internet and found threads with similar problem, but have not been able to solve this problem. 76 60ft. 1 score last spring. I replaced IAC, CTS, TPS, ETS, EGR valve, EGR solenoid, FPR, Injectors LT1 Missing and hesitation when warm only after cold air install. 5 heads, Quadstar Super 54 & Tune. IF so, that could be ICM. 73gears,Descreened MAF, Trans go shift kit,4000 stall,b&m cooler,K&Ncai,Tune from Trifecta Performance , LT Headers,CSR water pump. if i cold start is and drive for about 10 min it stalls and will not crank until it is fully cold again. After quite a bit of cranking (assuming due to no fuel in the lines, rails, injectors) it started and ran smooth as silk for 3 seconds then died. Test drove it and it ran great. Save Share Reply Quote Like. Runs great if I reset the fuel trims every 20 My car stalls out at all different times. Let it sit for an hour or so and she'll start so able to get it home. i let it sit for 30 C4 Tech/Performance - LT1 Stalling/Cutting Out - EDIT: PROBLEM SOLVED! It was the coil. Since I can remember engine has had intermittent higher-than-normal idle on a hot engine after cold start; around 900 rpm when hot. 6 rrs,and lifters,cnc stock ported heads,Walbro 255,edelbrock ported air gap intake,58mm t/b,pacesetter Lts,Summit 2. 10 gears Still finding my way around my 69 396 gen 2 LT1. 5 years ago the dealership replaced the battery under warranty for this issue. Bilsteins with Strano springs and swaybars. that doesn't play nice with i have a 94 trans am firebird that has the LT1 5. 30 Years Experience repairing, customizing, and building chevys. 1964 Impala SS rust rust and more rust 1994 Impala SS Flowtech Afterburner LT's , 2. Poly all around, Founders LCA relos, LCA's and subframe connectors. It acts more like a carb than FI. The car, a 92 automatic coupe with 180K miles on it, will start up cold, run fine, and then when it reaches its operating temp, it will shut off as if So whatever it is, the digital temp. I have not pulled codes. Posts: 3,842 View My Garage. Drove it about 25 miles back to my house, parked in the garage, turned it off and when restarting immediately, it went right back into the stall & stumble mode then died. If there is a short in the fan wiring etc it may cause the car to stall, there are a million things you need to check after you have ruled out (fore sure) the ICM and Opti. Then it will shut off all of a sudden. Stalling when warm help !!!! 915 Views 7 Replies 4 Participants Last post by Max, Jun 9, 2014. 1996 GMC Jimmy 4. I've replaced the coolant temp sensor in the manifold, TPS, IAC, EGR, TBI base gasket, and 02 sensor. The car operates correctly when it is cold; however once warm, it constantly stalls once I come to a stop. Alt only and ABS deleted. If you're running a stock(ish) setup, additional stall will feel like the car is dragging a boat anchor when you engage the throttle. When I purchased the engine in 2016, it came with a throttle body, caprice air cleaner box, and it has the "standard" 193 swirl heads on it. Because I could always correct the idle with a restart I never much bothered to The heat of the engine, in combination with a spark plug that is still hot, may cause the spark plug threads to strip the cylinder head upon removal. replaced injectors, pcm, tps, - Chevrolet 1995 Impala question Search Fixya Press enter to search. When that code sets the PCM shuts down the fuel system, since without that signal, the PCM has no reference to set the spark and sequential injection timing. to/2R3GVyI If the LT1 is stalling, starts then dies or shuts off, check the vacuum lines first! Before replacing the optispark, EGR valve, IAC v 1995 Pontiac Trans Am 5. OK, How about this one. 73 10-bolt/Eaton posi. I found that after parking it after a good drive just for a few minutes, the carb was dripping gas internally down the throttle bore. Can Idle Air Control valve cause issues that are temperature related? It sure is dirty. Battery power is 12,5V - 12,4V and while starting drops to 10,5V. 7 v8 and when i cold start it it runs ok with a fuel smell. ) Check Fuel Regulator and Fuel Pump when hot 5. You can clean it and the orifice it goes in with throttle C4 Tech/Performance - help!!! 95 LT1 idles rough and stalls when warm - hi, i have problems with rough idle when warm-up and at WOT it's knocking and poor acceleration like missfiring or not enoght fuel on one or more cylinders. I'm having trouble at times with the engine will bog By chatting and providing personal 1982 Pontiac Firebird TA stalls when warm. My 94 LT1 with 85k stalls out when driven for only five to 10 miles. Didn't mess with it any today but it's supposed to be upper 60s and sunny tomorrow so maybe I'll get to it. But you say it runs good, until it heats up? After it heats up My pal has an LT-1 in his Studebaker Lark, and it keep dying after the engine has warmed up. Hi guys, I posted previously regarding an intermittent DTC 34 on my 1994 Camaro LT1/Jaguar Xj6 project. and deceleration fuel cut off (DFCO) tables which, if tuned incorrectly, can cause stalling when coming to a stop and idle problems. Normally, the rpms will stay up around 1200 if the car is at idle and you continue to roll. This is lumped to a '76 Jag XJ12C. 595/. Worn out plugs and bad plug wires will cause rough idle but rarely cause stalling. User Info. I moved the throttle, and I got smooth response from the voltage and the engine. The 95 has a "vented" Opti, and It's definitely not a Vortec like the trucks, nor is it an LT1. i go out a couple days ago and when i turned the key it sounded as if it was gonna start and then sounded like it wasnt getting fuel and the engine just turns and wont fire, but after a couple tries it starts up and drives fine and it starts up fine for Vapor Lock - Engine Stalling. I have played with the throttle follower and throttle cracker in efforts to fix the stalling issue. Issue killed an alternator. 7 LT1 105,000 miles. 020 over speed pro pistons,comp custom cam,comp push rods,comp 1. when warm and the car in park, it runs perfect no spits or sputters A forum community dedicated to all LS1 and LT1 powered vehicles owners and enthusiasts Google works The Opti-Spark system relies on two signals generated by an optical sensor pair and a timing disk. Never throws a CEL. Earlier this year after I experienced heat related issues on three occassions. I turn the key to start it, it fires right up and dies even quicker. 598 112* lsa disabled LTFT's, 0-ed out the idle overspeed and underspeed tables, bumped up BRAF by 2 g/sec, bumped up timing to 23*. Drive somewhere and shut it off, My 95 A4 LT1 runs like a champ for the first 5-10 minutes after start-up. Read full answer. If i drive it about 20-25 mins, then the heat gets nice . 95 Formula soon to be 4-bolt main 383 LT1. Turning ignition off and back on solves the problem until 20-30 cold starts later, then occurs again. So a couple weeks ago I picked up a 1995 LT1 C4 Corvette. When the engine is cold - easy start, no problem. Fuel pump and relays are working, and the problem is pretty repeatable, hot or cold. I have a warm idle problem. First post hopefully i'm in the right area, i've seen alot of member's talking about starting issue's when hot, hope someone can help. I waite about 30 minutes and she started right up no problems, and I was able to drive home. It starts right up and there are no issues while Hey guys. My 2003 Buick century got hot and quit working now it only turns over and won't start Why does my 1994 c4 lt1 corvette stall. Next: The heat takes FOREVER to warm up, not until i reach work does it start to get luke warm. Trying to burp the cooling system today, left it running and when running at idle I turned on the air conditioning and put on hot and the revs drop and it dies completely. The service engine light works (comes on at startup and shuts off) but is off. 2. It looks like a square with an arrow facing downwards. I have stalling issues on my 1993 Chevy Corvette 5. But once the car stalls out, it literally takes anywhere from 15 - 20 minutes to start it back up. The car is 100% restored and original with smog pump TCS etc C4 Tech/Performance - 1992 Corvette LT1 stalling issue - I have a '92 Corvette with only 59k miles on it. warm stalling, hard starting when warm I have seen this problem before. 1998 Camaro 3. though it does not always do it when warm. Starts good cold, drives for a few minutes and stalls. so i was driving through town and the car got really warm, warm enough to cycle the cooling fan on and off several times. Another problem is the cooling fans only C4 Tech/Performance - LT1 idles rough and stalls when warm, Long term counts high - I am absolutely stumped. 1994 Caprice 9C1 LT1, 1995 Caprice 9C1 LT1, 1995 Caprice Wagon, 2011 Caprice 9C3 PPV, 1969 Dodge Charger, 1972 Chrysler C4 Tech/Performance - LT4 - stalls when warm - Hi C4 Gang, its been a long time, mostly because GS #0082 have just kept running Taking the car out of storage and I have just replaced the brake booster (the plastic housing was cracked open). once i got back up to speed again the oil must have cooled down, oil pressure went back to the normal 20+ PSI i usually get on fully warmed up engine. As the 70's LT1 was like every other 350 cid sbc other than a 360-370 hp rating from g. 5 exhaust no cats Flowmaster 40's , Short ram air cold air intake ,and Solomon tune. Reply Subscribe . Manual LT1 Starts and Stalls. Once you come to a complete stop, the engine rpm immediately drops to 750 to 800 rpm. C4 General Discussion - 92 LT1 stalling when warm - My 92 LT1 automatic seems to be having a small issue. Been haunting me forever. The car idles great until it reaches 195 degrees. It seems to happen after its been running for a little while and then is shut down and restarted. Completely stock. C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine 1994 won't start when hot. Post: SOLVED: 94 K1500 350 TBI rough running when warm (Topic#347478) tweezak Forum Newbie Posts: 8 Loc: OR Reg: 02-03-14. It only happens once the car is warmed up. 6 CC RR, K&N, Power coupler, Relocated IAT sensor kit, Corvette Central Exhaust no mufflers, Air foil 12. Lloyd Elliott heads/intake/cam. 82@116. So my lt1 runs awesome lt4 cam ported heads 11:1 compression all the boltons Except It does some funky things when idling. ) Check for hot coil wire arcing 3. 383--AFR Heads--12. More gear lessens this affect, as will additional low RPM power (heads/cam). Why would an engine run normally and then stall and not restart until the engine cools? Carbureted and air-cooled engines are especially prone to this condition, especially on extremely warm summer days. Brilliant! This has been a chronic problem that has plagued many over all 5th gen yrs who tried everything you did https://amzn. Dr. At the beginning of the season this year I had a few intermittent stalls when returning the throttle to neutral after my skier dropped. I. After that it fires right up and runs great. I went for a little ride, and after a few minutes of driving at 55 Okay, so here's the deal. 355CI LT1 V8 4L60E Auto Trans 3" Exhaust w/Magnaflow CompCam 500/510 I would fan up a hair dryer or heat gun to blow warm air inside with some sort of vacuum on the other end to draw the air thru. The RPM's vary between 50-100. I've been experiencing sputtering/hesitation when I sit at around 2500RPM, or slightly lower. Dtc's 16 & 36 are for opti, and guess what, they don't light the cel either. if you really want to call 115* outside temps "cold. I'd Put water in it but I still have the issue of the motor stalling when warm. Problem. Send Private Topic View Profile. After this it starts to run rough and backfire at low rpms. 10-02-17 09:07 PM - Post# 2709587 Let's seewhere to begin. the oil pressure dropped enough to trigger the check gauges light. 5. 1. Sometimes when hot and trying to restart the tach needle LT1 keeps dying after warm-up September 11, 2016, 06:53 PM. After it warms up a bit it starts to idle rough. wesm Discussion starter. A parts store should be able to test the IC module. ) Test for Security or VATS failure when hot 6. No engine light or anything else came on. (not much, but enough for a slightly flooded hard start) I tried the spacer thing thinking it was getting hot and it didn't fix it. Believe it or not, usually when a series II acts like what you are describing, it is a dirty throttle body that is at fault. Could be a failing coolant sensor? Reply. So I have a 95 TBI 350 with about 190K miles on it. The engine stalling out completely tonight but tomorrow it may run just fine or idle just under 650 RPM. 5# Injectors, 3600 FTI Stall, Hendrix Engineering Shafts and Stubs 11. Failing ICM can cause stumble but typically the are a no start or once car warms up engine shuts off and won't re-startalthough I have had them just make the motor barely run but will start. Once I get to about 195 deg F, the car simply will not idle smoothly, eventually stalls out particularly when The optical sensor inside could be failing when hot. I can get it to rev up but as soon as I C4 Tech/Performance - My 92 lt1 stalls when warms up! - Hey guys I am new to this form and recently bought a 1992 lt1 with 130,000 on it! It is very clean and untill recently it purred! Now when I drive the car when it heats up it just stalls! No sputter no running rough or anything! It cools for 10 and starts right 1995 Camaro Z28 - MSD optispark, MSD coil, MSD wires, 2400 stall torque converter, Long Tubes, milled and ported heads, Flowmaster exhaust, LT4 Hotcam, A. Then you let it cool and the car runs fine until it heats up again. Jul 18, 2017; FAQ; Details. 52mm TB. Car was warm, and stalled unexpectedly as I released the clutch in first to pull away from a stop C4 Tech/Performance - 92 LT1 Corvette stalls when hot - Ok so this problem has been persistent for about a month now. So that is for about 3. R delete, Aburn rear diff, SLP cold air My engine is a 1995 Z28 LT1 with EFI. Article Number 000002305. My pal has an LT-1 in his Studebaker Lark, and it keep dying after the engine has warmed up. From 3200 to 4200 it feels like it's running on 4 cylinders but not like a typical misfire from a bad plug to the chassis, now hot starts work same as cold starts attached a picture of the new cable 08-07-2017, 06:10 AM #2: camguynj Drives: '13 SS/RS LS3 BRM Cammed NPP. W. Roadside Jerry | over 40 years experience. It is an intermittent rough start issue that first appeared the other day on a hot start. That kicked the can down the street for about a year. 2:1 scr--58mm TB--LT w/X TDs--23X/24X @ . As topic starter did, I checked fuel pressure with diagnostics scanner found 3,94 bars with open key. 87 60' FAST 90, Ported 243's, SS OTRCAI, 46. m. C4 Tech/Performance - Low idle / stall once warm and slowing to a stop - My 92 LT1 (blower + 383) 6 speed stalls when slowing to a stop. The coil housing may loose dielectric strength as it warms up. It starts when cold but once it warms up it starts to run poorly. Also am wondering about the coolant On my 95 LT1 I installed a new opti, did my intake gaskets, new PVC valve, several new chunks of vacuum hose where old was dry rotted, deleted my air pump and associated check valves. Once I get to about 195 deg F, the car simply will not idle smoothly, eventually stalls out particularly when I give it throttle leaving 94 Z28 LT1 Camaro. On LT1/LT4 engines the module is outside the distributor, so this doesn't apply like it would have to It doesnt stall when hot either. C4 Tech/Performance - LT1 stalls and will not run once up to temp - I have a 92 LT1 auto with 66K miles on it. It might be a 1993, but it is definitely a LO5 engine. Fuel pump is also possible though. 2 month ago I've replaced fuel pump and few days ago this issue revealed. If it is or otherwise stalls because idle dropped than the IAC (idle air control) valve in bottom of throttle body is bad or sticking. (cam,heads) Is it still built to the 70's lt1 spec's. Will not restart until. vettebigguy Discussion starter. Hi All, I am in trouble here, my '93 Lt1 coupe with 40,000 miles one owner car died a few weeks ago C3 Tech/Performance - 1970 LT1 Stalls when hot (need help!!) - Hi guys, I have a 1970 LT1 that I frame off restored last winter and Top Flighted with a 98. Very noticeable in second gear at about 25 mph. C4 General Discussion - 1992 stalls when hot - My 1992 LT1 just stalled on me after running for about an hour. It seams like it runs poorly cold or hot. I have tried C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine hard startlong crank SOLVED never climbs over 205 degrees as per gauge, cooling fan comes on way to frequently, and I get an occasional stumble or stall as engine warms up. 5 x-pipe with dynomax bullets,march underdrive pulleys,gm opti,msd cap and rotor,Msd 6AL,Moore 10mm race wires,SLP line lock,SLP fan More stall = additional transmission slippage coming off idle. idles smooth. I check fuel pump pressure and it was good. Have you checked for codes? Engine temp is getting hot, just below the red and then it suddenly dies. At high rpms it seems to be missing and has lowered power. " Periodically I smell a faint fuel odor from under the car while it's running. Then I'll drive to the gym which is 2 miles away. My '97 LT1 stalls when it hot & humid outside. Save Share Well if the car only stalls when hot, id say its gotta be the ICM. '95 Stock Lt1 with 67,000 miles. Thread Tools Search this Thread 94 Corvette LT1 power loss, backfiring when warm / closed loop. 23 w/1. I have a 93 LT1 6SP with 93K miles on it. 73's--Next up 150 Shot and 9"(after I twist the 10 bolt in half):lol: . start after cooling off. M. 137000 miles automatic. 050--3800 Edge Stall--TH400 w/RMVB trans brake--3. ) Space the ICM from block with washers to keep cool, or replace altogether again 7. That's how the C4 Tech/Performance - 1993 LT1 will start then stall and no restart - Hi 1993 LT1 has new fuel pump, pressure is 45 when cranking and 38 when it ran last ,i removed the injectors and cleaned them, with compressed air and carb clean,i checked the ohms and i get a reading of 13. It is stalling when I stop at a light and it is in gear. 1994 buick roadmaster lt1, 4. It will hardly start up, and feels like it runs on 3 cylinders sometimes before it stalls. C4 Tech/Performance - '96 LT1 Low idle/intermittent stall at stop (in gear only) - Hello, I'm looking for some advice/direction on troubleshooting this problem. What opti did you buy? 96 WS6. Hamman. 87@109 1. 4L60e w/3600 Revmax stall. Very inexpensive fix. For details see Post 40 on page 2 of this thread I was driving my '92 LT1 six speed yesterday when this happened for the first time. I'll let it sit some more, crank it and eventually I'll get Comp cams Xtreme Energy LT1 266HR-14 street cam and springs. 16 posts · Joined 2010 Add to quote; Only show this user #1 · Mar 17, 2014. It will turn over but I get no spark. I made sure that I had no leaks from LT1 randomly stalls. Yes, it does have fuel in it so that can't be it. of 11 to 1. I do get a misfire or a backfire popping sound once in a while also when i am driving. Only when it is warmed up. 5 years. 8 - '93 LT1 runs till hot and then dies, won't go Jump to Latest 13K views 6 replies 5 participants last post by z28fan Aug 31, 2008. It could be 10 minutes after i have let it warm up and drive it. Lately this LT1 is gotten to be a little hard to start the first time each day. When I go to restart it hesitates and misfires to the point of stall. ) Recheck all harness and pin connectors. Vapor lock generally occurs when the fuel Just a little lt1. otherwise stall. Intermittent stalling/starting problem. The car looks well taken care of and looks stock. after about 20 min of idle it stalls. 3L 4L60E 2002 Chevy 2500HD Duramax/Allison If it starts good cold, won't start hot immediately after you shut it down, but will start warm after it sits over half an hour - the head & rotor in the EGR / AIR removal write-up with pics LT1 Z28 1993 - LS1TECH 1994 LT1 Running rich, possible causes? - Firebird Nation my lt1 running so rich it dies - LS1TECH Okay so I checked my fuel pressure again just for kicks and after it was warm, say above 150*, when I turned the key on I only had around 34psi. When they are starting to go bad, it heats up and stalls. Once it is warm, the idle starts going up and down and in traffic sometimes the car wants to move forward. 1 :devil: Krazy Kajun 95 camaro 383 LTI A4 ,58mm Edelbrock TB,3. The car should immediately stumble, possibly stall, when you do so Just rebuilt a LS1 with a Comp Torquer v2, 232/234 . I have a 94 z28 it just started stalling out of no where. Just trying to see if there are any adjustments I can make to eliminate this problem? Thanks for your assistance. sensor has to get to about 200 before the problematic part gets warm enough to start acting up, or warm for long enough. It could be a few seconds after i start it. If it runs ok when warm so im doubting its the opti. runs like using regular gas but i use 93 gas. 1986 Monte Carlo SS 355 to many goodies :devil: 383 LT1 - LE Trickflows - LE Ported Intake - Jones Cam Designs Solid Roller Strange s60 4. Custom leather interior at 190k miles. So my 95 z28 lt1 starts perfect when the engine is cold, After a 30 min drive at normal speeds and a few alot faster. Shorties w/center-dumped Dynomax Bullet, for now. I bought the car with a bad trans so I have a stock 94 LT1 in my 70 Elky. 1995 C4 Tech/Performance - LT1 missing/stalling when hot - Hi all, I've searched many threads, and while I found similar symptons, nothing exactly like my issue, so I though I'd ask specifically. I have to start it 3 times before it will idle. This started as a surging while driving at constant rpms. 0 helpful. 1993 Formula Firebird Turbo LT1 6-speed. i just replaced the battery and the ignition After stalling & stumbling for about 30 minutes tonight, it started running fine again. and info on many things LT1. Acceleration is normal up to about 3200. Location: NJ. Stage Hot start problem I had the exact same problem with my Edelbrock carb. When I start it when cold, it shuts off immediately after starting. ) New O2 Sensor 8. No noticeable misfire I'm thinking plugs or coil. Its intermittent as well. Ported stock intake w/58mm TB, 4bolt, 4340 SCAT RA/H-Beams/pistons, AFR195 Comp 58cc, ok so i got a 96 trans am with a lt1 engine it only has 57k and ive had no problems with it the six years ive had it until recently. I'd driven up a long inclined road (around Tiger Woods recent crash site in fact) to pick up some kids from school, parked, turned off the car, waiting 10 Customer: 1995 Camaro stalls when warm. 1995 GMC K2500 LB /EC Studded 1993 599 6. . All of a sudden it will not run after the water temperature gets to the point that it would open Sometimes when hot and trying to restart the tach needle bounces but it never does when the car is cold or running right before all the way warmed up. Total repaint 193k Miles 26PPH injectors. 30 I've got a 94 Buick Roadmaster with the LT1 and an issue has recently appeared that has me stumped. With your 16-year old LT1, if the Opti has never been changed, AND there is some evidence that either the optical section or the cap & rotor is defective, I would replace the entire assembly. I'm sure there are some LT1/4 experts in here. This will help identify and relate any unusual What would cause a hard start/long crank condition? The battery is weak, but not enough to prevent the engine from cranking. Once warm, if i come out and hour later, starts right up every time. ? Let it get warm first and then try If the check engine light is on, get it looked at with a good scanner, idle air control valve or throttle position sensor, or map sensor not maf sensor(I don't think it even has a MAF) I've personally had rough idle leading to stalling problems on LT1 cars from 3 common things: (1) IAC stuck, (2) Opti issues, but commonly moisture due to clogged vent harness, (3) random low fuel pressure due to weak or failing pump. The car will not warm start worth a damn without giving it throttle and when I start out driving the car wants to stall and does when returning to idle with out my assistance. I got it two 92 LT1 Vette LT4 hot cam kit, 1. V. fpbt ppnivbo ydtiawc fga dkm mmpngr abrhew pkf aveam glp kmez qxy voo gkhs teig