Unable to fill gas tank, only enough gas into the filler neck and then overflows, tank is less than 1/2 full.

Asked by Jul 18, 2016 at 11:35 AM about the 1993 Chevrolet C/K 1500 Cheyenne Extended Cab 4WD

Question type: Maintenance & Repair

When trying to fill gas tank, filler neck fills up and will not let me put anymore gas than that into the tank.  I cleared the evap tube from the tank back to filler tube, but didn't make any difference.

1 Answer


Evaporator canister clogged up,cant be cleaned,has to be replaced.

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