RepairPal's independent, master mechanics track down the best of the best in auto repair. Learn more »
Get the latest advice about your car
Model Year Affected: 1990
Engine Affected: 2.5L 4 Cylinder
The spark plug wire rubber boots may get soaked with oil, causing a misfire or rough idle.
Common Problems > GMC S15
Q&A > GMC > 1990 GMC S15