2009 Yukon - Slow Tank Fill

[demo124]

2009 Yukon - I have replaced fuel pump, vapor canister, vapor canister vent solenoid. Still filling tank slowly. Is there anything else I can check?

 

[zbad55]

Not sure what you mean by filling tank slowly, the fuel pumps at the gas station can vary with flow speed. How fast is the pump at the gas station you use? Do you have to slow down the pump nozzle in order to fill.

 

[demo124]

Back pressure in the tank is not being relieved causing pump to turn off.

 

[sick1166]

Vent lines plugged with carbon pellets that run from tank to the carbon evap canister had this problem as so many others

 

[zbad55]

Back pressure in the tank is not being relieved causing pump to turn off.

See if you can blow out the 5/8 line on the top of tank that goes to the canister it may be clogged with carbon.