Ignition module

Db loss · Jul 8, 2020

About every 12 to 18 months the ignition module goes bad. 1990 c1500 5.7. any suggestions.

PlayingWithTBI · Jul 8, 2020

They are known to go out due to overheating (that's why GM moved it outside the distributor on Vortecs). Delphi and AC usually last longer than cheaper ones like Spectra Premium, I had one that lasted 2 months. Make sure you use enough quality thermal paste since the plate underneath acts as a heat sink. I use this stuff.

https://www.amazon.com/ARCTIC-MX-4-...uPWNsaWNrUmVkaXJlY3QmZG9Ob3RMb2dDbGljaz10cnVl

94 Silverado · Jul 9, 2020

Is that paste better than the goop that comes with, say, a Duralast module? I had the cheaper AutoZone brand module test and out of the box. Don't ever buy one of those! I would make them test the new module on their machine if they have the right connections still.

PlayingWithTBI · Jul 10, 2020

94 Silverado said:
Is that paste better than the goop that comes with, say, a Duralast module?

It's worked for me, been running for almost 2 years now with no problems. Personally, I wouldn't buy Auto Zone or O'Reilly ICMs, I'd stick with Delphi or AC Delco.

someotherguy · Jul 10, 2020

Something else is you want to clean the old stuff off the distributor, and when you apply new, don't put TOO much. Definitely not a case of more=better.

And anyone that tells you to use dielectric grease in this application (believe me these people are out there) ignore that person. While there are similarities, heat sink compound is a different product altogether.

Richard

Ignition module

Db loss

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94 Silverado

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