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I have a 2001 GMC Jimmy that all of sudden won't allow me fill gas with a gas pump, but I can pour the gas in with a gas can.

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There is a pressure regulating hose that is attached to the top of the filler tube, if this hose has collapsed or is blocked the pressure in the tank builds up and you get a back splash when filling. Check this hose. You may have to take the filler tube and hose loose in order to get to it. If it's not collapsed or blocked but looks old and dry rotted, replace it.

Posted on Jul 28, 2008

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2001 jimmy gas tank problems ,go to fill with gas will not let gas go into the tank


Sounds like the gas tank vent is blocked, not allowing the air to escape as you fill. You should see two tubes going into the tank, one to fill, the other is the vent. Check it to make sure it's not blocked.

The only other thing, is if there is a mesh filter in the fill tube, and if it's blocked, it won't fill.

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