Diffiulty With Filling Gas Tank On Yukon

[Havasubum]

I hope someone has had the same problem. I am having trouble filling the gas tank on my Yukon. In order to fill the tank I have to run the nozzle VERY slowly. If I try to set the lever lock, it keeps kicking the nozzle off. It started as an occasional problem. However, now it happens at any gas station. I even had trouble at a station in Arizona that doesn't have the vapor recovery system. Thanks in advance for help.

[Jsdirt]

That's been happening with my truck as well. Not good for the ol' temper, I tell ya!

 

I've found that you have to position the nozzle at a certain depth, or else it will continuously kick off -- usually the second you grab the squeege & start your windows. I was hoping they'd recall them for an obviously undersized, or poorly designed fill hose, but I'm not holding my breath on that one given GM's economic condition.

 

I've also found that some stations' pumps are more sensitive to this than others -- even a different pump at the same station.

 

I think this may be the treehuggers infiltration of GM's design team, in order to prevent people from walking away while pumping gas. We all know how the environment is the latest fad.....

 

I hope someone comes up with a solution for this before I lose it one day & punch the side of my new truck!

[ryan_hermanutz]

That's been happening with my truck as well. Not good for the ol' temper, I tell ya!

 

I've found that you have to position the nozzle at a certain depth, or else it will continuously kick off -- usually the second you grab the squeege & start your windows. I was hoping they'd recall them for an obviously undersized, or poorly designed fill hose, but I'm not holding my breath on that one given GM's economic condition.

 

I've also found that some stations' pumps are more sensitive to this than others -- even a different pump at the same station.

 

I think this may be the treehuggers infiltration of GM's design team, in order to prevent people from walking away while pumping gas. We all know how the environment is the latest fad.....

 

I hope someone comes up with a solution for this before I lose it one day & punch the side of my new truck!

 

What does this have to do with the price of tea in China? Seriously though try rotating the nozzle like 30 degrees or something the angle of the filler neck is probably what is affecting the delivery of the gasoline. I’ve found that some places I can just let the nozzle hang and other times I need to rotate the nozzle a fair bit for it to work.

[brims]

I've seen the same pump be a PITA in the morning and work fine in the afternoon.

[bill190]

There is an "evaporative emissions system" on vehicles, which when not working properly can cause this problem.

 

Basically this is all the "extra hoses" connected to the fuel tank.

 

But to troubleshoot this problem, you would need a GM Factor Service Manual set for your year/model vehicle. Or take it to a GM dealer for service.

 

Note that part of this system is a "charcoal canister". And I have read that this can fill with gas from topping off the tank frequently. Then cause the evaporative system to stop working as it should. (Clog the air flow.)

[Hooty]

I hope someone has had the same problem. I am having trouble filling the gas tank on my Yukon. In order to fill the tank I have to run the nozzle VERY slowly. If I try to set the lever lock, it keeps kicking the nozzle off. It started as an occasional problem. However, now it happens at any gas station. I even had trouble at a station in Arizona that doesn't have the vapor recovery system. Thanks in advance for help.

 

I had a 2003 GMC Sonoma with the same problem. This is how I fixed my problem, maybe yours is the same.

 

There is a one way valve (about 4" wide,3" high, and 1.5" thick with a wiring connector attached) located near the rear of the vehicle,(on the Sonoma it was attached to the frame rail between the spare tire and the tank. This valve is part of the charcoal canister EVAP system. It essentially stays closed during normal operation, this allows gas fumes from the canister to be drawn into the engine for reburning when you start the engine.

 

However, when you fill the tank, the air in the tank must go somewhere. That is where the charcoal systems comes in. Air from the tank passes through the charcoal canister and out to the atmosphere thought this valve. If it becomes clogged (as mine did) it will stick in the closed or partially closed position. The air can't evacuate from the tank fast enough to allow the fuel in.

 

I took my truck to a mechanic who used a computer diagnostic tool to find the valve was not working. It cost me $80.00 for the diagnosis, and $40.00 for the part which I replaced myself. You may be able to save yourself the diagnostic charges.

 

Hope this helps.

 

Cheers,

 

Hooty

[Havasubum]

Thanks for the ideas everyone. I'll let you know if the dealer finds something later this week.

[BLACK DEATH]

any info on this problem???

[minibike132]

Restriction, most likely vent valve. Possibly saturated canister or collapsed tubing if there has been any repairs in the area.

 

SEE THIS http://www.gm-trucks.com/forums/index.php?showtopic=104569