what makes the gas pump nozzle keep shutting off when filling my tank on my 2007 gxp

Asked by Nov 09, 2014 at 04:35 PM about the 2007 Pontiac Grand Prix GXP

Question type: Maintenance & Repair

2007 Pontiac Grand Prix GXP with trouble code 446, and hard to fill tank without the pump nozzle from shutting off repeatedly.

2 Answers

3,155

Sounds like you have a plugged vent hose or a plugged EVAP charcoal canister. You can try removing the hoses and blowing compressed air through it to clear it. I believe the charcoal canister is located behind the rear wheel on the driver's side, but I could be wrong.

2 of 2 people found this helpful.
615

On my older Pontiac, I had this very problem and the culprit was as follows: attached to the filler neck and between the tank there was a large diameter hose connection. It had become old and brittle and had collapsed to a small portion of its original opening size. I changed the hose, now no problems. I hope this helps you out.

1 of 1 people found this helpful.

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