Anyone know what kind of grease goes between the ICM and the heat sink it mounts to? Just ordered a brand new GM ICM cuz I think mine took a crap, car died in the middle of the road .

 

You'll get a packet of grease with it. It is thermal grease. Not dielectric grease or anything else.

 

It should come with a package of grease. I installed a new OEM ICM a couple of months ago and the grease was supplied.

 

i always use dielectric grease

 

I used dielectric grease also, several times.

 

if you get no grease with it, go to a computer store and get heat transfer/CPU grease(old school Arctic Silver works great), you shouldn't use dielectric grease

 

partial definition of dielectric grease

In addition to the things listed it is used for a heat conductor when some electronic components are mounted on surfaces to dissipate heat (like the ignition power stage on 700/900 models and 240's 89-93). It is non-conductive, but when you slide the connectors together there is metal-to-metal contact and the grease gets displaced but the area around connector is protected from moisture.

 

I kinda figured the grease came with it, I just wanted to get some extra for the ICM on there now so my car doesn't die in the middle of nowhere. I'll see if I can find some thermal grease or something at Autozone.

 

You can go to any computer store and buy a tube of thermalpaste which is used to go inbetween the CPU and heatsink on computers.

 

The ICM is backed by a heat sink, so it makes sense that you would use heat sink grease.

 

Amen and amen.