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Why are my headlight wire overheating at the switch on my 1989 Ford Mustang GT?

By admin | February 11, 2010

acalex1967 asked:


Why are my headlight wire overheating at the switch on my 1989 Ford Mustang GT? I had to replace the old head light switch wiring harness, but copied all wires correctly. However now, when I turn on the headlights, the lead wire for the park lights and the lead wire for the head lights heat up so much they begin to smoke if I don’t turn them off. Any Ideas?

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    • Topics: mustang |

    No Responses to “Why are my headlight wire overheating at the switch on my 1989 Ford Mustang GT?”

    1. Preston L Says:
      February 13th, 2010 at 7:54 pm

      The short will be between your wiring harness through the short you need to try to try to isolate.

    2. Ronnie Says:
      February 15th, 2010 at 3:34 am

      The two wires that are getting hot and see what happens.