My truck keeps blowing the ignition fuse!!

Discussion in 'GMC Truck Forum' started by muddywatergurl, Jun 12, 2011.

  1. muddywatergurl

    muddywatergurl New Member

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    1990 GMC K1500 keeps blowing the ignition fuse. Sometimes it will try to start and sometimes it will blow before the truck even turns over. HELP!!!
     
  2. hugesmichael

    hugesmichael Member

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    check your wiring at the injectors with ohm meter put one probe in the white or red lead and the other to ground if it shows continuity you have a short from their to fuse block check harness for rub through.
     
  3. kirbymurphy

    kirbymurphy Senior Member

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    Any after-market items you may have piggybacked onto the fuse line? Radio, alarm, amp?
     

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