The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - 71 GMC lights and blinker problem need help

**Stocker** · 02-23-2010, 06:58 PM

Welcome to the boards from N. Calif!

Sounds like a can-o-worms, and possibly more than one problem.

When the turn signals don't work, but the green arrow lights up in the dash, the problem might be bad grounding of the front side marker lamps. Happens more often in damp weather. They ground through their mounting screws.

02-23-2010, 06:58 PM	#4
Stocker 20' Daredevil (Ret) Join Date: May 2003 Location: Jefferson State Posts: 13,548	Re: 71 GMC lights and blinker problem need help Welcome to the boards from N. Calif! Sounds like a can-o-worms, and possibly more than one problem. When the turn signals don't work, but the green arrow lights up in the dash, the problem might be bad grounding of the front side marker lamps. Happens more often in damp weather. They ground through their mounting screws. __________________ - Mike - 1972 K20 LWB 350/350/205 RIP El Jay Last edited by Stocker; 02-23-2010 at 06:59 PM.