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    Dual fuel tank trouble switching

    It was the switching valve. Local parts shop had one, changed it out with minimal issues. Fixed all my problems lol
  2. A

    Dual fuel tank trouble switching

    Ok I should’ve kept reading. Sounds like it just the selector valve… And BTW, who at GM decided to hard line all the way to the valve, then transition to rubber for 1.5”?! Hopefully I don’t screw those up
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    Dual fuel tank trouble switching

    Ok I know this topic has been covered extensively but I can seem to find my specific problem anywhere… Alright,87 GMC R1500 TBI, Right tank works flawlessly. Switch to left tank(which is full), sputters and dies. Also gauge barely quivers but doesn’t move. I’ve checked dash switch, good. Checked...

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