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Electrical short, who can fix?

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  • Electrical short, who can fix?

    My 90 gt has the #8 fuse missing, the radio not working and dome light. Soni went to check fuses and found it missing. Well as soon as i put one in it pops it. I tried looking for any bad wires but really dont know where to start. Who would you recommend for this type of repair? Thanks


    2003 f250
    1990 mustang gt stock 68k miles
    1990 mustang gt 347 t56
    1994 peterbilt 377 dump truck 450hp cat
    1997 freightliner 500hp detriot[/FONT]

  • #2
    Start by disconnecting things on that circuit. Lights speedo amp radio clock. If you disconnect one and the fuse doesn't pop then that's your problem. Is the radio aftermarket? Was also reading on another board someone had same problem. Turned out a bad ignition switch was the culprit. If it's original it might need replaced.
    Last edited by Captain Crawfish; 07-28-2016, 10:31 AM.

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    • #3
      Going to try this Saturday


      2003 f250
      1990 mustang gt stock 68k miles
      1990 mustang gt 347 t56
      1994 peterbilt 377 dump truck 450hp cat
      1997 freightliner 500hp detriot[/FONT]

      Comment


      • #4
        I used to use a self resetting fuse (circuit breaker).
        I saves on fuse costs too. Proceed like QIK46 said...

        GL

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        • #5
          I use them in some areas, but if his has a direct short, those things can overheat and melt the fuse box, or worse.

          marc, I would look at the color of the wire, and start working your way back to the fuse box from the radio/dome lamp. There's bound to be a short somewhere. Ive seen a bad dome light do similar, too. I would pull both parts from power, put a fuse in, and see if it pops. If you have an ohm meter, that would be very helpful.
          "If I asked people what they wanted, they would have said faster horses." - Henry Ford

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          • #6
            I have my dash out on my 92, if u need me to trace down a wire let me know, just let me knw what color it is

            Originally posted by DOHCTR
            You sir are the poster child for "Go big or go home"!

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            • #7
              Let me clarify!
              Use a circuit breaker equal to or less than the rating of the correct fuse!!!
              Also, here is a wiring diagram I have used in the past...

              Mustang FAQ - Mustang Wiring, Air Bag, ABS, Engine Home Page

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              • #8
                Man, i should of started here looking for this short. Took the drivers visor off, and what do i see, pinched wire . That was easy...lol. thanks for all those that helped.


                2003 f250
                1990 mustang gt stock 68k miles
                1990 mustang gt 347 t56
                1994 peterbilt 377 dump truck 450hp cat
                1997 freightliner 500hp detriot[/FONT]

                Comment


                • #9
                  It's probably a dome light that's shorted out or a botched aftermarket stereo wiring job.

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