LT1 ignition coil driver and ignition control module...same thing?
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Joined: Apr 2008
Posts: 80
Likes: 0
From: Portland Oregon
thanks!
another question...my car acts up only when it gets pretty hot-warm weather, stop and go traffic, driving for 20 min or more-then it cuts out under acceleration. now, IF this is related to the coil and icm (i bought a new coil already) is it possible that the heat grease is just worn out/off (it seemed pretty thin in a couple places) and if i re-grease it that the old icm might still work, and a new one might be unnecessary? or should i just buy a new one?
thanks!!
another question...my car acts up only when it gets pretty hot-warm weather, stop and go traffic, driving for 20 min or more-then it cuts out under acceleration. now, IF this is related to the coil and icm (i bought a new coil already) is it possible that the heat grease is just worn out/off (it seemed pretty thin in a couple places) and if i re-grease it that the old icm might still work, and a new one might be unnecessary? or should i just buy a new one?
thanks!!
Race Director
Joined: Apr 2002
Posts: 10,036
Likes: 346
From: Anaheim CA
Car misfiring or dying when hot can be caused by a poor thermal connection between the ICM and whatever it's bolted to (depends on the year). You need to have THERMAL grease under the ICM, not dielectric grease.
The purpose of the grease is to eliminate the air pockets under the ICM because the surfaces aren't perfectly flat. Air is an insulator.
The purpose of the grease is to eliminate the air pockets under the ICM because the surfaces aren't perfectly flat. Air is an insulator.
Le Mans Master
Joined: Dec 2006
Posts: 5,139
Likes: 482
From: H-Town Texas
I hope this was a typo and you meant to say thermal paste, or heat sink grease. Dielectric grease will do nothing to prevent the ICM from burning up.
Race Director
Joined: Jan 2005
Posts: 10,641
Likes: 13
From: Slidell Louisiana
Le Mans Master
Joined: Dec 2006
Posts: 5,139
Likes: 482
From: H-Town Texas
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