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blowing fuses...

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by 90K5, Jan 13, 2001.

  1. 90K5

    90K5 1/2 ton status

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    My dash light fuse has blown twice in the last few days. What could be causing this? I pulled a trailer the last few time it happened, could the lights on the trailer have overloaded the circuit?

    90K5

    See my truck at <A target="_blank" HREF=http://albums.photopoint.com/j/Albumindex?u=1329584&a=9886502>http://albums.photopoint.com/j/Albumindex?u=1329584&a=9886502</A>
     
  2. 90K5

    90K5 1/2 ton status

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    BTW, the wiring looked fine when I replaced the fuse for the first time, becuase i took the dash apart, and then thought about the fuse...also my parking lights aren't working, but my blinkers are.

    90K5

    See my truck at <A target="_blank" HREF=http://albums.photopoint.com/j/Albumindex?u=1329584&a=9886502>http://albums.photopoint.com/j/Albumindex?u=1329584&a=9886502</A>
     
  3. Grim-Reaper

    Grim-Reaper 3/4 ton status Author

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    I would start snooping around where the harness is tapped for the trailer.

    Diging it in the dirt with my K5's
    Grim-Reaper
    <A target="_blank" HREF=http://grimsk5s.coloradok5.com/>http://grimsk5s.coloradok5.com/</A>
     
  4. 90K5

    90K5 1/2 ton status

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    Well, after making that post, I went to a friends house and he noticed that my taillights weren't working either, so I went back home, passing like three cops and started looking at the wiring. Whoever put the wiring harness for the trailer in decided he didn't need to use the ground, so I fixed it and went to buy a new fuse (in dad's Acura[​IMG]) Now she's all better...I think.

    90K5

    See my truck at <A target="_blank" HREF=http://albums.photopoint.com/j/Albumindex?u=1329584&a=9886502>http://albums.photopoint.com/j/Albumindex?u=1329584&a=9886502</A>
     
  5. moe.

    moe. Registered Member

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    That happened to me just a little while ago. I'd pull on my headlights, and put it into gear and poof, every light would go out 'cept for the headlights. It would sit and idle fine without blowing a fuse, but as soon as the body shifted a bit, poof.
    Got it on a lift, and found a chaffed wire in the harness that goes back to the tailights, right by the transmission. Whenever the linkage would get moved to another gear, it would swipe against the wire, and blow the fuse. Covered up the bare section, and it's not blowing fuses (yet).

    '75 Blazer blue/white
    350/350

    87 Turbo Regal
    a few bolt-ons
    12.69@107.7
     

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