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Interior smells like gas?

99 GMC Jimmy 180300 miles on it, 4.3 vortec 6 cylinder, automatic. Interior smells like gasoline, any ideas what might be causing it?

Update:

i dont believe its leaking fuel, the mileage hasnt seemed to drop at all.

4 Answers

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  • 1 decade ago
    Favorite Answer

    I bet it starts hard and has a tendency to flood!

    You should check the fuel pressure. If it come up but drops right off then you need to replace the fuel feed lined under the plenum.

    Source(s): I work in a GM dealership and have worked on cars for over 25 years.
  • 1 decade ago

    If you have not spilled any gas, then you have a fuel leak which is very dangerous. If you do not see any fuel leaking, go to a parts store and buy some fuel dye. Add it to your tank start the engine then shut it off. You will need a black light to see the dye, where ever the dye is, is where your leak is at.

  • Anonymous
    1 decade ago

    it could be your carbon canister. It's what holds gasoline fumes until it can be used by the engine under acceleration. There could be a hole in the canister. Also you might want to check under your vehicle to see if you could be leaking gasoline from a gas line.

  • 1 decade ago

    check your fuel lines to see if you have a leak.

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