Question about 1991 Chevrolet S-10

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No taillights or turn signals (blinking dash)

Checked fuses, flasher. Also i hear a switch clicking when I hit the brake pedal as well as the electronic dash board dims.no brake lights or tail lights at any time.When I say dim I mean almost completely going out but headlights are fine

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Lots of trucks have Problems with Grounds at the rear on the Frame, but yours sounds like A Headlight switch, Pull the switch and use a Volt meter to check for 12 volts on GM its normaly a Brown or green wire at the switch plug, Also Look FOR Burned look at that same plug if you see
this BURNED looking plug it Indicates that the problem was a Progressive one and useualy caused by Bad Ground Remember always Current Choses the path of leist resistance just like WATER so if it could not get a good ground the current backfed to the switch and Burned it out. I HOPE This Helps you out

Posted on Jan 09, 2009

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