Right brake light not working

Asked by Feb 26, 2017 at 07:54 AM about the GMC Sierra 1500

Question type: Maintenance & Repair

My 80 GMC right tail not working I've
replaced the bulb and replaced the bulb
connector also cleaned the ground wire
replaced fuse and still nothing.  Any helpful
suggestion could anyone think about

4 Answers

73,855

What is handy for this is a test light. There should be a plugin underneath the vehicle in the back. I would start there to see if there is power at the plugins back there.

Actually that was done also replaced the brake switch under the dash. It will work sometimes just for a sec as of its a short somewhere but. With the test light everything seems to get fire.

73,855

If you have constant power at that point then it has to be in the connector, broken wire. Look and test for a intermittent, broken wire on all the plugins. Wires break inside the insulation and usually at the connections.

Ok will try that. Thanks

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