Question about 2007 Chevrolet Silverado 3500HD New Cars

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2007 Chev. 3500 flatbed deisel trucks w/Dual Tanks

I have several 2007 Chev. 3500 flatbed diesel trucks with dual tanks, it has a transfer pump to pump diesel from one tank to the other. Which tank has the guage, which tank feeds the engine, do the tanks equalize a level or does the transfer keep a level in the supply tank??

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  • J.D. Browning
    J.D. Browning May 11, 2010

    a transfer pump this i've never heard of are you sure it's not a transfer valve that draws from what ever tank is selected with the pump idea how do ya keep from overflowin the primary tank i knew a guy that used to drive crosscountry often he had a tank in the bed that gravity fead the tank under the bed with a ball valve shutoff But thats dangerious and most likely will get the attn of a nice police man next time he walks by on his way into the local donut shop any how the transfer "Valve" has a swich on the dash and it should redirect the level sender for the tank your running off of to the dash gauge and yes these "valves" go bad and they fail a few ways (1) draws from both tanks(2)draws from one tank only(3) draws from one tank and returns to other tank (effectivly moving fuel from one tank to other) if any of these things happen replace the valve and or dash switch

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  • Master
  • 427 Answers

Unless they have a seperate switches for tanks and gauges they equallize to give you a overall reading.

Posted on Jul 13, 2010

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