After chasing down a bad ICM two months ago I had another one die again on me tonight. Was going down the road fine, car stalled and wouldn't start again. Tach does not raise to the ~500 rpm it should. Gonna go pick up one in the morning from Autozone (had to leave my car at work).
The 4 years I've owned/driven the car I've never had an ICM go bad. What happened? Did I get a bad one or is something else killing them? Guess I'm gonna carry a spare one on me like everyone else does!
HEI? Many things can kill ICM but most owners just think Bad ICM and never fix the root cause. Is why many keep extra ICM all the time. example: Using "hot" aftermarket coils often kills ICM and rotors/caps.
use thermal compound, just a thin layer IE put some on press it to the distrib, add some to any blank spots. make sure the screws holding are tight as one of the screws is a ground. ICMs fail, it is what it is, thus why we all carry a spare. Have AZ test the new one, like 8 times to heat it up, I have had new ones out of the box be bad.