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John
John, Master A.S.E Automotive technician
Category: Chevy
Satisfied Customers: 9176
Experience:  A.S.E MasterTechnician A1-A8 w/L1,38 years experience General Motors Master Technician
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Causes gasoline to shoot back out of the gas tank while refueling?

Customer Question

What causes gasoline to shoot back out of the gas tank while refueling? (I have a 2004 Chevy Avalache)
Submitted: 7 years ago.
Category: Chevy
Expert:  John replied 7 years ago.

Hello,

 

This problem is usually caused by a faulty fuel tank vent valve vapor line restriction leading to the vapor canister.This is apart of the emission system of your vehicle.

John and other Chevy Specialists are ready to help you
Customer: replied 7 years ago.

Thanks John! Could you tell me where this fuel tank vent valve is located on the truck and is it difficult to replace - either due to location or process? Again, thanks for your quick reply! Been trying to figure this out for over a month now.. greatly appreciate your expertise!

~ Dorothy

Expert:  John replied 7 years ago.
The vent valve assembly is at the fuel tank area.