1991 Chevrolet C2500 Cheyenne 6 Cyl 4.3L
Body & Interior
My back-up lights work about 10% of the time Why
My back-up lights work about 10% of the time WHY
I could give you some circuit tests to do if you feel up to using a 12 volt test lamp. Without doing tests I would not know what to advise you to do next. Do you want to know more?