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Light Problems


MY50CHEVY

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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.

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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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