Quote:
Originally Posted by NjbadSS
I am looking for advice from anyone with knowledge of LT1 vehicles. A little about the car, it is a 96 trans am, lt1 engine, 6 speed manual trans. It has about 129k miles, brand new gm crate engine with about 6k on it now since installed in the car. The car starts right up with no problems, idles smooth but after driving the car a short distance until it warms up, it simply stalls out and will not start back up. We put a new computer in the car, opti spark, ignition module, fuel pump, but the problem continues. Does anyone have any other ideas what this might be? We have had several mechanics look it over and can't figure the problem out. It is a nice car with a new engine and transmission, we would hate to sell it because of an issue that may be simple to fix.
|
Does it start up after it cools down? If so, I had a very similar issue and replacing the ICM solved the problem. I also did the spacer mod to move the ICM/Coil unit off of the cylinder head. It sounds like you replaced the ICM already but did you also check the coil?
I would be driving down the road like nothing is wrong and the car would just stall. It would take a little bit to cool before it would fire back up. Sometimes, no issues and other times, it would stall within 10 min of driving.
Any other symptoms?