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Old 02-23-2010, 07:44 PM   #6
Classic Heartbeat
Project Junkie! Fishing Poor!!
 
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Join Date: Dec 1999
Location: Olympia,Wa. 98512
Posts: 10,770
Re: 71 GMC lights and blinker problem need help

Sounds like to me something is wired wrong. Who wired the turnsignal switch? Nobody that I know of sell just the turnsignal switch wire harness. Could also have a bad dimmer switch. (doubtfull but could) Grounding is always an issue if not done correctly, but the problems that you discribe are more than that. Sounds like you are getting power feeding back through the harness somehow. This is why I asked about the turn signal switch harness. WES
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