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The vehicle is a 2005 Pontiac cool Prix v 3800 series 3 engine natural aspiration.I was driving ~ above highway at around 65mph and also the engine stalled (no an answer to gas pedal and also engine rev fell. Ns don"t think the rev ~ above tachometer fell to 0 however I carry out not psychic exactly.). I shed power steering the course yet I controlled to stop it on the next of the road. After that, I can restart the automobile but it is idling unstable (it feels prefer not every the six cylinders are running. It is comparable to how the engine sounds and also feels once I had a misfire as result of faulty ECM a couple of years ago). I tried to restart it a couple of times and also it always restart and behave the same as ns described. No inspect engine light. Every light on dashboard functions because they room light up when I put key into "I". The tail pipeline smells choose it is running well-off (again like just how it smells once I had actually two cylinder misfired a couple of years ago). The vehicle restart and the driving drive the automobile onto the towing truck. It is now sitting in the shop. I need to wait till Monday to acquire it fixed.I to be puzzled due to the fact that there is no inspect engine light. If it is a misfire because of a faulty spark plug or coil or ECM, i assume that inspect engine light will certainly be on. Plus the spark plug and wires are changed 20000 miles ago. Air filter was replaced last year. Might it it is in a fuel injector or pump? i don"t know whether this will cause check engine irradiate or not. And also the automobile should sputter prior to it died. But it walk not. It drives completely fine. My uncertainty is crank or electronic came shaft position sensor. Another relevant symptom is that the automobile start up an extremely smoothly as soon as cold yet seems to struggle to start as soon as it is warm (it will start thought simply not start as smooth as it is cold).Any insights will be appreciated.

#2 Re: Engine stall while driving
Scottydoggs
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Killa bee
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98 Buick Regal GS, F human body brakes, Caddy STS wheels, tinted tails L36 bottom end, lightly porting heads, 1.95 roller rockers, headers, gen 5 N* 3.0 pulley, FSIC, 42 lb injectors, a BrandonHall rebuilt trans, DHP tuned and AEM water/
Meth injection https://goo.gl/gpV5kW

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initially Posted by Scottydoggs
crank sensor never sets the password for it. If its simply random stalling, id begin with a crank sensor.

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Thanks! I appreciate your insights. While you replied, ns edited my post and that"s my hesitation although i don"t recognize enough about crank sensor. Would battle to begin when warmth be a symptom for a bad crank sensor? and it always restart well after the engine stall and also runs/idles rough. Can a car idling rough through a poor crank sensor?
Killa bee
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98 Buick Regal GS, F body brakes, Caddy STS wheels, tinted tails L36 bottom end, lightly porting heads, 1.95 roller rockers, headers, gen 5 N* 3.0 pulley, FSIC, 42 lb injectors, a BrandonHall rebuilt trans, DHP tuned and AEM water/Meth injection https://goo.gl/gpV5kW
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initially Posted through Scottydoggs
what year and engine you acquired there? could be a negative fpr. And maybe the crank sensor together.
Sorry ns did not incorporate the model and also year. I will edit the original post.It is a 2005 Pontiac grand Prix basic model. Engine is the 3800 collection 3 organic aspiration.
Killa bee
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not the fpr then. Earlier to a crank sensor. Cat can be clogged increase too, them na engines love to clog the cat. But that would certainly come through the car feeling choose its lost a lot of power. And the cel would certainly flash once you floor it.
98 Buick Regal GS, F human body brakes, Caddy STS wheels, tinted tails L36 bottom end, lightly ported heads, 1.95 roller rockers, headers, gen 5 N* 3.0 pulley, FSIC, 42 lb injectors, a BrandonHall rebuilt trans, DHP tuned and AEM water/Meth injection https://goo.gl/gpV5kW
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not the fpr then. Back to a crank sensor. Cat can be clogged increase too, castle na engines love to clog the cat. But that would come with the car feeling favor its lost a most power. And the cel would certainly flash as soon as you floor it.
Thanks! It seems the crank sensor can be the cause. I haven"t floored it however I did no feel any lose that power. No inspect engine light either. That drives totally fine and also then just suddenly stalled. The cat was changed with a OEM one 4 years earlier and I just drove much less than 25000 mile on it. Ns hope GM"s cat is not that bad......
Killa bee
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inspect the crank sensor harness for damages while law the gob, they often tend to obtain old and brittle and also get cracks in the insulation, then it fails.
98 Buick Regal GS, F body brakes, Caddy STS wheels, tinted tails L36 bottom end, lightly ported heads, 1.95 roller rockers, headers, gen 5 N* 3.0 pulley, FSIC, 42 lb injectors, a BrandonHall rebuilt trans, DHP tuned and also AEM water/Meth injection https://goo.gl/gpV5kW
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check the crank sensor harness for damage while law the gob, they tend to obtain old and brittle and also get cracks in the insulation, then it fails.

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Thanks a lot for the insights. I will examine that because that sure. I likewise used the AC because that the very first time in a while yet I don"t know whether this is regarded the engine stall problem.
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ns took the auto to the shop and also they said me the it is a faulty ignition coil. It is puzzling to me the a ignition difficulty did not collection the examine engine light. Ns guess I have actually never let the automobile run for a lengthy time after ~ it passed away so the engine irradiate does not have sufficient time to show up. However I will try to speak to the mechanic to see exactly how he did the diagnostic. I will certainly report earlier what I found in much more details.
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I had an ICM failure on mine 00 GT this specific way. Simply slowly involved a stop with no amount of engine response from the pedal. Then as soon as it would start it ran favor crap. I likewise found a cracked coil at the very same time. Swapped ICM and also coil and also it fired best up choose nothing happened.
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I had an ICM fail on my 00 GT this exact way. Simply slowly concerned a avoid with no lot of engine response from the pedal. Then when it would start it ran choose crap. I likewise found a cracked coil at the exact same time. Swapped ICM and also coil and also it fired ideal up choose nothing happened.
Exactly. Eventually I have to replace the ignition manage module and one ignition coil. The auto runs well after that. The only left trouble is the the misfire damaged the catalytic converter so I have actually a P0420 password now. This is the 2nd time in four years the the ICM failed and then the catalytic converter failure consequently. I love my 05 grand Prix yet I am an ext inclined to replace it through something more recent and more reliable.
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mine 97 GTP is acting something choose this. It seems to be warm related. It will certainly start just fine, idle normal, and also drive typical for almost everywhere from 2 to 15 minutes, then begin chugging and eventually stall. Through Torque OBD connected once the starts come stall the vacuum reading stays in ~ 0.04, no rise or vacuum. I found the vacuum tee under the snout disconnected, however replacing the did not deal with the problem. It has thrown me a code, P0121: Throttle/Pedal position Sensor/Switch A Circuit Range/Performance Problem, so I replaced the TPS with another I had actually off one more TB. Exact same issue. Harness seems OK, not rubbing ~ above anything. As soon as it stalls, that wont start for anything, yet if friend wait approx 15 minutes starts right up prefer nothing is wrong. Can it it is in something as straightforward as ICM?
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Could an extremely well be. Could be getting heat soaked and then failing. Any kind of ICM from a 3800 car should job-related if you have actually someone around that has one the you might "borrow" long sufficient to troubleshoot. If that is the ICM, then turn off to the junkyard girlfriend go.
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I have tendency to agree v the crank sensor theory, only because I had a Jeep the did the very same thing, stalling if driving then after the cooled down it started and ran again. I carried it right into the shop many times yet by the time it acquired to the shop the difficulty was gone, and they couldn"t number anything out. ~ exhaustive research study online, ns took the in and told them to replace the crank sensor. Lock called ago an hour later and said lock didn"t think it to be the crank sensor. I said, probably you misunderstood, ns told girlfriend to replace the cursed sensor. Castle did and also it ran happily ever after, at least until I offered it a couple of years later.