1991 GMC Sonoma Repair and Maintenance
A guide to problems, costs, maintenance and repair for your 1991 GMC Sonoma
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1991 GMC Sonoma ProblemsOil-soaked spark plug wire rubber boots can cause misfire or rough idleABS Light Due to Brake System Control Unit Failure
An engine oil leak may develop from the distributor shaft o-ring seal.
1991 GMC Sonoma QuestionsMy 1991 gmc sonoma 4.3 liter is loosing too much water (1 answer)
and I don't know why i just had my heads and my throttle body redone it was blowing clouds of white smoke every time I turned it on or let it sit while running now it does it only when it's cold or low on water.... need some ones opinion !
I just bought the truck. I started it just about 2 weeks before I bought it, it ran fine. I go to start it after I bought it and the ignition is stuck in the locked position. I can't move any of the pieces. Not even the unlock switch.