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68gmsee · 12-06-2009, 11:27 AM

Welcome.... from Texas.

First you want to make sure that you have good ground points on all of the metal going back to the battery. I fought weird problems with lighting for long time before I did the ground fix. Lots of old bolts lose good grounding contact.

What I did:
Ground strap from rear of truck to frame.
Ground strap from rear of cab to frame.
Ground strap from cab to engine.
Ground strap from neg post to radiator support.

I also made sure cable to engine was good and even installed another cable from engine to frame.

After that is done, then go back and check all the wiring. Lots of good wiring diagrams in the faq section of the "electrical" forum.

12-06-2009, 11:27 AM	#2
68gmsee Active Member Join Date: Jul 2007 Location: Centrally located between Houston, Austin and Waco. BCS area. Posts: 7,947	Re: No tail lights!!! Welcome.... from Texas. First you want to make sure that you have good ground points on all of the metal going back to the battery. I fought weird problems with lighting for long time before I did the ground fix. Lots of old bolts lose good grounding contact. What I did: Ground strap from rear of truck to frame. Ground strap from rear of cab to frame. Ground strap from cab to engine. Ground strap from neg post to radiator support. I also made sure cable to engine was good and even installed another cable from engine to frame. After that is done, then go back and check all the wiring. Lots of good wiring diagrams in the faq section of the "electrical" forum. Last edited by 68gmsee; 12-06-2009 at 11:27 AM.