I have recently changed my turn signal bulbs because they are flashing really fast as if a bulb has blown. I changed all my bulbs and it is still doing the same thing.Is there somehthing else i should try?
RepairPal Certified shops can diagnose and repair your 2001 GMC Jimmy. They provide transparent pricing with a minimum 12-month or 12,000-mile warranty on repairs and services.
Do all the lamps actually light? If not, you could have a connector or wiring problem. it's possible to get the wrong type of flasher but I don't think that's it.