I have a 1985 GMC sierra When I use the left turn signal all the lights on the truck blinks.

Asked by Sep 13, 2015 at 10:09 AM about the 1988 GMC Sierra 1500 C1500 Standard Cab LB

Question type: Maintenance & Repair

2 Answers

Defective switch in steering column..

Scratch that. Get a manual from parts store.. It should have that in Electrical Troubleshooting..

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