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Thread: 84 chevy dual tank circuit

  1. #1
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    84 chevy dual tank circuit

    Does any one know were i might find troubleshooting and wiring diagrams for my 1984 dual tank circuit. i can not get it to pull fuel from the right tank anf the fuel gauge will peg over full on the right side. any help would be greatly appreciated

  2. #2
    Senior Member Chevy_Finatic79's Avatar
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    maybe you have rotted lines or a bad selector switch
    "She's gonna Freak when she see's my wheels"

    85' Chevy C-10 Longbox (Rat)
    TBI 327 Cu.In./THM350

    90' Chevy Suburban 4x4
    TBI 350 Cu.In./700R4

    http://www.truckforum.org/forums/truck-pictures-176.htm

  3. #3
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    leolkfrm's Avatar
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    have someone work the switch and feel to see if the valve is working, your guage works so the in cab part sounds ok

  4. #4
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    if it reads way over full you`ve probly got an open wire, and those selectors are common, i had to change a couple in my 80` and i only had it 3 years!!




    300TH POST WHOOHOO!!

  5. #5
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    Isn't there a solenoid in under the bed that can go bad? My 87 does exactly what his does, the gauge registers, but she aint pulling fuel from the right tank. Course, I suppose the difference would be his fuel pump's on the motor and mine's in the tank, right?

  6. #6
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    Thinking the selector is bad. ohmed the floats got good readings at different float positions. took selctor off a junk truck i have and the gauges read properly. I,ll go buy one see what happens. Thanks for the help eveyone. it is greatly appericiated.

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