Cannot fill fuel tank why?

ROGER CHAMPINE

MEMBER
2004 CHEVROLET CAVALIER
2.6L
4 CYL
155,000 MILES

I put new fuel pump, changed fuel filter, changed charcoal canister, cleared out the entry line. O'Reily told me to chanfe the fuel tank vent valve. I purchased it, I can't locate it.

Friday, April 24th, 2020 AT 10:25 PM

1 Reply

ASEMASTER6371

MECHANIC
52,797 POSTS

Good morning,

Yes, that is a common issue for filling the tank. When it is stuck closed, it will not vent air out of the tank so the nozzle keeps shutting off. Once the valve is replaced, then the air can escape and you will be able to fill the tank without any issues.

I attached pictures and the procedure below.

Roy

REMOVAL PROCEDURE
1. Raise the vehicle. Refer to Vehicle Lifting.

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2. Loosen the EVAP canister vent valve hose clamp and slide the clamp down the hose away from the EVAP vent valve hose connection.
3. Remove the hose from the EVAP canister vent valve.

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4. Remove the EVAP canister vent valve by placing a pry bar between the valve and mounting surface, and moving the valve forward.

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5. Remove the clip from the EVAP canister vent valve harness connector.

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6. Disconnect the EVAP canister vent valve harness connector.

Images (Click to make bigger)