Fueling Problems

[jrl_chubbre]

I have a 2004 GMC Yukon XL Denali. It has 20000 miles on it. For the last five months I have had problems fueling it - the backpressure cutoff switch on the pump keeps tripping, even though the tank is not filled. This happens no matter where I buy gas. Has anyone else had this problem?

[phat97yukon]

Ive had the same problems on old 80's chev trucks ive owned in the past, just dont put nozzle in all the way, only have mabey 1/8th to 1/4 of the way in, try that out and let me know if that helped

[tonytone]

Too much vapor lock trapped somewhere in your truck's fuel system? I dunno...

Does it happen even if you go to a gas station that has condom-less fuel pump nozzles?

[jrl_chubbre]

Originally Posted by tonytone

Too much vapor lock trapped somewhere in your truck's fuel system? I dunno...

Does it happen even if you go to a gas station that has condom-less fuel pump nozzles?

I can't say I've noticed - most of the refueling is done in NJ - we still have gas attendants pumping the gas - though I believe most pumps have the plastic vapor sleeves.

I was reading somewhere on a Porsche site that the tank vents have a solenoid switch that opens and closes the vent - I am not sure why it needs to closed at times. But if it is closed during fueling you get the same problem with a Porsche. Does anyone know if the Yukon has a similar switch on the tank vents?

[ncinirator]

Try fueling at night or when its cool out.