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Old 04-21-2023, 01:24 PM   #1
snowball
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Join Date: Apr 2012
Location: Texas
Posts: 129
Bad new ICM?

Hi all,

My truck died 6 months ago and I was too busy to fix it. turned out it was the Ignition Control Module. No fire, no fuel.

I replaced with with a GM original. now she is ROUGH! Hard to start. Idles rough. Backfires. Hesitates.

I put in fresh fuel. Same problem.

Bad ICM or should I look at something else?

Yes. I did put the thermal paste on the new ICM.

Thanks

1990 350 R1500
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1990 suburban r1500 k 350 2wd
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