I have a 2.3L SOHC engine in my car. The engine is new. Last week it quit running going down the road. I just assumed it was the fuel pump, since it IS 14 years old and spent 5 years sitting, with rotten gas in it. Plus it was getting very noisy. I changed the pump, car started right up and ran until it got hot, then quit and is doing the same thing as before. I took the coil pack apart, the coils look brand new, not like they do when they shit the bed. I am guessing the control module has shit the bed. Is this a common failure? Are my symptoms consistant? Runs until hot, then stops running. "Trys" to start...but just won't. Not until it cools off to ambient.
'93 Grand AM SE
2.3 SOHC w/5-speed
Ok...replaced the ICM...same shit. Runs fine, then all of a sudden, for no apparent reason, it just cuts off like you turned off the switch. Sometimes it will restart, sometimes it won't...when it won't, it 'acts' like it wants to start and even backfires sometimes. Crank position sensor?
Note: It runs for the longest amount of time when cold. Once it gets hot, you can forget about it.
Well, just replaced the fuel pump. I THOUGHT it was the culprit as well. The old one was getting VERY noisy. Replaced it, same shit. So then I suspected the ICM....replaced THAT, same shit. The coils are fine. Only thing left that I can imagine it being with the crank position sensor...or a wiring issue (god I hope not, fucking ACK)
It just quits running as if you turned off the key. No sputtering...nothing. Just OFF. AND, you can hear the fuel pump continuing to run, briefly, after it shuts down...so that's not it.
I have seen the same symptoms with the crank sensor gone bad.
Pull the ignition cover when it is hot and doesn't run, and put 4 spark plugs in it (preferably not the ones in your engine, as it is not recommended to remove them when the engine is warm) lay the plugs against the cam tower or other metal to ground them and have someone crank the engine so you can check for spark. Then you can narrow it down to whether it is an ignition or fuel problem.
not true, My car initially had the same problem, would run until it got hot then it would die. eventually it wouldnt start at all. I changed the CTS and it fired right up after sitting for almost a year.