2CarPros - Car Questions & Answers

1991 GMC Jimmy Repair Question


Topics covered: Miscellaneous.
Mileage: No information provided.

Asked on January 4, 2007

GMC 1991 GMC JIMMY 4X4 4.3 EFI

I have a 1991 GMC JIMMY 4X4 4.3L EFI
My JIMMY WILL MISS AT SPEEDS AROUND 45-55,
BUT ONLY MISSES WHEN IT IS RAINING OR HAS RAINED ANY SUGGESTIONS

THANKS
DWITT98
Avatar Asked by dwitt98

Answer

Replied on January 4, 2007

Highly likley plug wires are bad. If you take a spray bottle and lightly mist the wires from one end to the other, it will likley start misfiring and confirm this.

Tiny Answered by Service Writer (expert)
9,955 answers provided