Flagship One pcm

[Caman96]

Did you replace the control module? It’s near the coil.
Edit: missed that in your list of parts

 

[Agibson]

Control module has been replaced. I put a new coil on it and the new coil was bad and fried Control module. Change coil and ICM ran good for about 10 miles and started messing up again.

 

[Caman96]

Read this response from Motor City Rick.

Burning up ICM's

www.gmtruckclub.com

Read post #5 too!

 

[Agibson]

I put an O'Reilly control module on it I guess I'll have to get an oem one to put on and try it. Thanks for the info

 

[Erik the Awful]

Cutting in and out while driving down the road and you're getting a low voltage code for the ICM? Check your battery connections. Side terminals are horrible for loosening a little and causing stalling.

 

[1998_K1500_Sub]

Read this response from Motor City Rick.

Burning up ICM's

www.gmtruckclub.com

Read post #5 too!

There's an interesting post in that thread about how the replacement ICM's terminals were small / undersized and didn't make good physical / electrical contact with the mating electrical connector, and intermittent problems ensued.

There's also an comment about using heat sink compound under the ICM during installation (which is the proper approach), vs. using dielectric grease (which is not the best practice).

Good thread!

 

[Caman96]

Found this in an article on this same subject:
“Most manufacturers design the ignition control module to last a long as the vehicle. Unfortunately, this doesn’t always happen. Some of the most popular cases of failure have been found in ICMs installed in the 1996-2005 Chevy Camaro Sport Coupe, Blazer, Suburban, Tahoe, and Chevy cargo vans and pickup trucks”.
Right in my wheelhouse!

 

[PlayingWithTBI]

There's also an comment about using heat sink compound under the ICM during installation (which is the proper approach), vs. using dielectric grease (which is not the best practice).

Yeah, I'm pretty sure Motor City Rick meant heat sink compound, he just misspoke in this case.

I really enjoyed his insight and posts. FYI, he was a GM engineer. A lot of his troubleshooting posts were spot on. He just fell off the face of the earth a couple years ago after mentioning something about a family member's health issue(s).

 

[Caman96]

Don’t, at least reputable manufacturers, come with the correct compound?

 

[Caman96]

Apparently not.

Delphi DS10039 Ignition Control Module

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