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Old 05-05-2013, 05:07 PM   #3
68gmsee
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Join Date: Jul 2007
Location: Centrally located between Houston, Austin and Waco. BCS area.
Posts: 7,947
Re: strange rear brake light/brake light switch problem, I LOVE electrical gremlins..

A helper would really nice about this time. If you're married, ask your wife. Mine gripes when I ask her to help but she still helps me.

Before you start trouble shooting:

As Rufton mentioned, install ground straps all over your truck. I bought new battery cables and four ground straps: bed to frame, frame to cab, cab to engine, radiator support to frame. I got rid of a lot of brake light gremlins including battery gauge not working.

Then if it still acts up just put a meter or test light on the brake light sockets and check for voltage.
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68 GMC 250/3 speed Saginaw p/b p/s
69 Chevy 350/350 currently in pieces still lookin for a cab
06 Trailblazer
I just want a vehicle that I can work on, that won't talk to me, leave error msgs or keep track of how I drive...
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