1986 Chevy Truck Fuel Gauge problem.

Discussion in 'Chevy Truck Forum' started by tripower428, Mar 23, 2009.

  1. crabtruck

    crabtruck Senior Member

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    for your first question see above.
    gauge wiring does not go near dash switch.
    BTW that's not a solenoid, it's a flipper-dipper.
    Flip because it's what it does to senders
    and dip because that's what it does to gas.
    Hope this clears things up leo,
    you know how I like good info.
     
  2. hotrodpc

    hotrodpc Senior Member

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    Hey, you know what, I just remember I bought a stupid GM truck book for 1986 Chev Truck, FULLLLLLLLLL of wiring diagrams on 86 models C/K light duty trucks. Lemmee sheck it out and see if I can scan you a copy of sumthin.
     
  3. crabtruck

    crabtruck Senior Member

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    great hotrod, now I gotta go back to the books for that one, ugg.
    You act like not every truck since I waited for my Model-T to come out
    were not al the same.:D
     
  4. hotrodpc

    hotrodpc Senior Member

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  5. hotrodpc

    hotrodpc Senior Member

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    Sorry Buddy, just making sure we are passing out the right info so we don't get a bad rep like all those other sites.
     
  6. hotrodpc

    hotrodpc Senior Member

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    86 Aux Fuel Tank Wiring

    This may not be much help. It does off the colors though.
     

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  7. crabtruck

    crabtruck Senior Member

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    Cripes, I don't mind being helpful, but useful is a lot more work. LOL

    "At the valve you should have five wires, 3 for gage and two for pumps.
    Pumps are operated by the dash switch toggling to reverse hot and ground wires
    to valve. This also flips the internal connection for senders."

    Should have been:
    "At the valve you should have five wires, 3 for gage and two for TANKS.
    TANKS are SELECTED by the dash switch toggling to reverse hot and ground wires
    to valve. This also flips the internal connection for senders."

    Same result modified for mech pump.
    Thanks for the drawing. Wire at bottom goes to gauge.
    Good catch hotrod
     
  8. hotrodpc

    hotrodpc Senior Member

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    No prob Crab. And you are correct, that wire does go to the guage, and if he needs that diagram I can get it too. It is just in the intstrument panel seciton. But I think we both agree, the problem is not at the guage.
     
  9. crabtruck

    crabtruck Senior Member

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    Yeah, I think it's a case of "follow the wire" to find the break.
    Gee, why didn't he stick around while we worked this out ? :rofl:
     
  10. hotrodpc

    hotrodpc Senior Member

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    No kidding, I noticed that. He sat around sipping tea watching the news before bed while we worked it out, then he will get up in the morning and it have all layed out.
     

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