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scotttt1970
User

Nov 3, 2012, 11:25 AM

Post #1 of 6 (2860 views)
Heat Sink Sign In

I hate to bother you guys with such a stupid minor question but I bought a IGN module for my 2000 Chevy Cavalier 2.2 liter 4 cyl, and noticed it did not come with any heat sink protection paste. I started calling around, and looking online and it just made me more confused. One person said the reason the heat sink didn't come with the module is because of the way it was mounted on the engine, He said beings that the mod is mounted on a heat shield that keeps it off the engine about 1/2 inch, and that the mod itself has some built in heat protection, that the heat sink was not required. He said the the only ones that absolutely required the heat sink is the modules that mount on the distributor. Is this true or should I take it off and put it on anyways? Thanks in advance for your time


Tom Greenleaf
Ultimate Carjunky / Moderator
Tom Greenleaf profile image

Nov 3, 2012, 1:48 PM

Post #2 of 6 (2833 views)
Re: Heat Sink Sign In

All I see is use of silicone grease where it mounts that should come with a replacement, no separate "heat sink" listed and that look up could be all wrong,

T



scotttt1970
User

Nov 3, 2012, 6:53 PM

Post #3 of 6 (2815 views)
Re: Heat Sink Sign In

Wow you are absolutely right I wrote that completely wrong. This is the actual article I found........ (The ignition control module can be found mounted on the engine, placed in or on the distributor or mounted to the under hood sheet metal. Since the control module contains heat sensitive electrical components, steps are taken to insulate the module from engine heat. Modules that are mounted on the under hood sheet metal or on the engine, usually contain a thick film of insulating material around the internal circuitry. In addition, engine mounted control modules may also use heat shields between the module and the engine. Distributor mounted modules are insulated using a silicone paste between the module and the mounting surface. When replacing a distributor mounted control module, the silicone paste should always be applied to the mounting surface of the module)..... Mine is the Engine mounted kind and is not mounted directly to the engine. It is on a shield that actually separates it from the engine about 1/2 inch. Does that sound right?

(This post was edited by scotttt1970 on Nov 3, 2012, 6:54 PM)


Tom Greenleaf
Ultimate Carjunky / Moderator
Tom Greenleaf profile image

Nov 4, 2012, 1:10 AM

Post #4 of 6 (2808 views)
Re: Heat Sink Sign In

This is what I found - AYOR for accuracy.......
REMOVAL & INSTALLATION

2.2L Engines

See Figures 1 and 2
  1. Disconnect the negative battery cable.
  2. On 1995-97 models, raise and safely support the vehicle.
  3. Remove the ignition coils from the module.
  4. Remove the module from the assembly plate.
  5. Installation is the reverse of the removal procedure.





Fig. Fig. 1: The ignition module or (ICM), is located under the coils
____________________________________________________
Also............

WARNING Do NOT wipe the grease from the module or coil if the same module is to be replaced. If a new module is to be installed, a package of silicone grease will be included with it. Spread the grease on the metal face of the module and on the cover where the module seats. This grease is necessary for module cooling. _________________________________________ That should be it if that's your problem at all with this, T



scotttt1970
User

Nov 4, 2012, 4:06 AM

Post #5 of 6 (2798 views)
Re: Heat Sink Sign In

Even though mine is not a 1995-97 model, and I don't have to raise the car to install the module because its mounted under the hood not under car, I am going to go ahead and take it back apart and apply the grease. Thanks for all the help


Tom Greenleaf
Ultimate Carjunky / Moderator
Tom Greenleaf profile image

Nov 4, 2012, 4:51 AM

Post #6 of 6 (2795 views)
Re: Heat Sink Sign In

I think that meant for those model years those steps would be like that and others would not. Who knows, once some that type stuff is written if in fact totally wrong it can stick out there forever. Basic idea should be the same,

T







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