Fueling Up Issues, taking forever filling up Options

[BLACK DEATH]

I just got the truck and last time i filled up there were issues as it took forever to fuel up as it kept clicking the nozzle as if it were full. Well it finally let me fill up with out any issues. Well yesterday I go to fuel up again and i had to go very slow filling up and it took about 10 minutes to fill up. Its like the fuel going in is not releasing the air in the tank. I can hear air coming out from the filler tube and the fuel will start to fill to the top. Now I know it is empty as I put 20 gallons in it and drove 220 miles from last fill up so it was not full. Wheres this issue at? I did a search but came up empty. 04 2500 6.0 2wd ecsb

[Jim4C]

I have had the same thing happen but have found if I pull the nozzle out just a little and get it about the right place the problem goes away. I assume with nozzle in too far there is not enough air flow getting through.

[Hen Avenger]

Does this problem occur on a specific gas station pump? Or in general at every pump? I never had any issues like this in my 03, I have heard of pumps taking a long time to fill up because of problems with them (meaning not having to do anything with your truck).

[hockeypro1411]

I've found that pumps at Speedway are incredibly slow. But pumps at BP seem to be almost twice as fast.

[BLACK DEATH]

Its not the gas stations pumps output, guys. Its when your filling your truck and the nozzle will click as if the tank is full. It does it all the time. I have to barely squeeze the trigger to put fuel into the tank for me to fill up my tank. Its like it is not venting the air out from the tank. However much fuel gets put in is about how much air must be removed, correct? Its got to be a vent clogged somewhere or someother issue somewhere in this fuel tank.

[steiny93]

my 2500hd does it once in a while, wifes 06 denali does it all the time

under warranty we were back and forth with the denali, dealership printed out a tsb during the last visit
basically the gas pumps have sped up and the truck doesn't handle it well

we've just adjusted our fuel stops to ones in town that we know, getting annoying on a road trip as it can be crap shoot

[BLACK DEATH]

Dam GM, gotts love em....

[sparkstech]

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

[Hen Avenger]

I've found that pumps at Speedway are incredibly slow. But pumps at BP seem to be almost twice as fast.

BP does seem to have better, faster pumps. I fill up at Sunoco, BP, Hess, Exxon, Shell and Valero and exclusively boycott all Citgo's. Now that I think of it, I do remember recalling a couple of times at an Exxon the pump keep stopping as if the tank was full, but that was only at a certain station and it hasn't done that for awhile now at the same station. Out of all these stations, I really prefer Sunoco's fuel as it feels like my truck has more pep to it when running on Sunoco's 89 or higher.

This post has been edited by Hen Avenger: Nov 14 2009, 06:47 AM

[plowking]

I think the new pumps capture the fumes and send it back to the underground tank,Tank truck takes fumes back to the refinery. It could be this system is upsetting the truck at fillup. If you leave nozzle loose,the fumes will be released into atmosphere. I have same problems at some stations,fine at others. plowking