1990 Ford F150 Logo
Posted on Jun 18, 2009
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Gas leaking out where you fill the front tank

Gas was leaking from the grommet on the top of the front tank. Replaced and now I think that it has pulled the gas from the rear tank to the front tank and is overflowing at the nozzle where you put gas in.

  • Anonymous Mar 17, 2014

    gas tank leak on top

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  • Master 957 Answers
  • Posted on Jun 18, 2009
Anonymous
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Joined: Apr 24, 2009
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You probably have a defective fuel-tank selector valve. Its located on the left frame rail, halfway down. While the vehicle is running, tank"A" is pumping fuel to the engine, while tank "B" is getting the unneeded fuel that is returning from the engine. Thats why it is overflowing.

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