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!

Thanks,
CrazyRed84

Did you use proper heat sink compound under the ICM... and not dielectric grease?

Ia your pick up coil good?

High secondary resistance will cause your ignition coil's insulation to fail, which will cause your ICM to fail.

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.

See my Cave, HE Ignition

------------------
Dr. Ian Malcolm: Yeah, but your scientists were so preoccupied with whether or not they could, they didn't stop to think if they should.
(Jurassic Park)

The Ogre's Fiero Cave (It's also at the top and bottom of every forum page...)

[This message has been edited by theogre (edited 09-09-2014).]

I may have used dielectric grease

Wasnt sure what the manual was talking about and when I asked at the autoparts store that's what they gave me. Didn't think anything of it.

Should I just use regular Thermal compound for computer hardware? Pretty sure I picked some up from Radioshack a bit ago.

Thanks,
CrazyRed84

yes, that will help. But still have other problems then new ICM just take longer to die.

Ogre, Such as? The plugs, wires and coil are new from my last problems with my ignition a few months ago.

Thanks,
CrazyRed84

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.