Tail Lights Not Working

[northerngmc]

Originally Posted by cwdavis

Okay I was able to get the taillights to work. I it was a ground issue. I cleaned the ground on the rear side markers.

However now the issue is with the driver side. I have no brake, blinker, or hazard light. I would look at the column if not for the brake light. I mean the column does not control the brake. Does it? Any ideas?

Again thank you for the help thus far.

Do you have ground straps on this truck?

There should be several. I had a 69 GMC that I was chasing similar electrical problems. I found there was not a ground strap from the box to the frame. I would suggest looking for grounds straps and if not run a short piece of wire from the box to the frame.