Fuel pouring out of fuel door
09-05-2005, 11:39 PM
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Fuel pouring out of fuel door
I have a 1991 5.7 Z-28 with 50,000 miles. Lately after fill up gas pours out of the fuel door and down the side of the car. I have replaced the fuel cap and still have the problem. It happens only occasionally and the dealer is stumped. Any ideas?
George
George
09-05-2005, 11:48 PM
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Car: 89 Irocz
Engine: 350TPI $6E
Transmission: 700R4
Has the factory heat shield between the gas tank and the pipe & muffler been removed? I know that heat will cause a full tank to leak out the filler neck.
09-06-2005, 12:30 PM
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Car: 91 GTA, 91 Formula, 89 TTA
Engine: all 225+ RWHP
Transmission: all OD
Axle/Gears: Always the good ones
ITs either an issue with the purge valve not opening and letting built up vapors out.(overpressurizing)
Or the fuel tank vent valve is not letting fresh air into the tank to displace the gas used and it is sucking itself in.
Or a combo of the two.
Do a search for fuel tank vent valve and you will find a part number.
later
Jeremy
Or the fuel tank vent valve is not letting fresh air into the tank to displace the gas used and it is sucking itself in.
Or a combo of the two.
Do a search for fuel tank vent valve and you will find a part number.
later
Jeremy
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