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Shorted out 74

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by MileHighNeil, Aug 8, 2001.

  1. MileHighNeil

    MileHighNeil Newbie

    Joined:
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    Location:
    Denver CO
    Help, Please. I left my ignition key on partly overnight. Next morning I only got one crank and then Pssstt.. Now I got nothing no headlights, no crank, no nothing. Now (no idea how) my polarity seems to be reversed. Everything is hot according to my testlight. Frame, wires you name it. I've swapped batteries and no avail, changed batt. cables, removed starter from block (thought it might have shorted out through case to ground) I dont have any idea. I even wired my driving lights direct to a battery (their grounded through bumper) and nothing. Please help.
    ncarpent@concentric.net
     
  2. Pugsley

    Pugsley 1/2 ton status

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    Sounds like you've got lunched diodes in the alternator - atleast that's the only idea I can come up with[​IMG]

    Dos mas Tecates!!!
    <a target="_blank" href=http://pugsley.alloffroad.com>pugsley.alloffroad.com</a>
     
  3. Michael

    Michael 1/2 ton status

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    Location:
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    If you have nothing...it sounds like a bad ground from the battery to the motor/frame. I'm assuming you really didn't mean the frame was "hot". There should be a fusible link from the starter to the rest of the 12v system (usually a terminal block on the firewall). Then another link from the firewall block to the alternator etc. If you don't have an HEI you may have toasted the coil also, but that shouldn't kill everything else. Check your ground...if that's not it feel free to email me for a schematic or other useless ideas.

    Michael[​IMG]
    <a target="_blank" href=http://www.jmartin.net/parker/goose.htm>www.jmartin.net/parker/goose.htm</a>
     
  4. BigTex

    BigTex 1/2 ton status

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    Location:
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    It sounds to me like you have a ground problem if nothing is happening. Check out the firewall. There is a little wire that runs from the fuse box up to the firewall. I believe it is a ground but I don't know what it is called. Reason I'm suggesting this is because I had a similar problem and it was just that wire that had become frayed with age. I hope you know what in the heck I'm talking about. Otherwise, let me know and I'll try to clear it up.

    <a target="_blank" href=http://www.chriswhitley.com>www.chriswhitley.com</a>
     

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