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Light Problems


MY50CHEVY

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Posted

I have a 1994 GMC k1500 extended cab with 5.7 tbi. When i hook to a trailer and check lights everthing works good, but when i turn headlights on and try to use turn signals they blink once but then dont continue to blink. If i un-hook trailer they work just fine. Any suggestions as to where to start looking. I think i Will check the trailers wiring first, ive pulled several other trailers and didnt have this problem.

Posted

Seems like back in the day we used to have to replace the flasher relay with a heavy duty to handle the blinker load. Might be a place to start on my old truck it was a round thing under the dash with prongs on it that plug in. Sorry thats all i can think of to help. Also nice looking truck you have there.

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