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MrWizard's avatar
MrWizard
Moderator
Apr 22, 2020

Where did the Gas go ?

Apparently there is a clog in the fuel pickup in the tank and or the In Tank Pump has finally gone to pieces,
Last year I installed an external inline pump on the frame
Right now little too no fuel is reaching this pump,
In a bid to move the RV to another location close by, I connected the input of this external pump to a gas can "hillbilly style", And pulled the power fuse of the OEM in the tank pump
It started and ran, but it pumped 3 gallons of gas from the can in a few minutes, going less than one mile,
No fuel was spilled, No external leaks, No fuel on the frame, or the engine, or the ground/street, No fumes, No smell,

Is it possible the fuel somehow went thru the return
lines into the tank ?
Or
Maybe dumped into the engine by a blown open injector ?

1996 Ford 460, F53 RV chassis

14 Replies

  • A 96 Ford is a return system. So yes it got pumped back to the tank. Time to fix it properly. Install a new intake pump with a new pickup. And a new filter.
  • If the engine ran normally I would say the return line took it to the tank. That is what happens normally when excess fuel is provided by the fuel pump. Somewhere in the fuel injection system probably near the end of the fuel rails there will be a pressure regulator that directs the fuel in excess of what the injectors are demanding back to the main tank.

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