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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