Filling up.

marpel · May 28, 2022

'22 Sierra HD, gas.

I have found that when filling the tank, it often overflows a bit when it reaches full. Today, it spit out about a quarter cup (all down the side). This can occur prior to attempting to remove the nozzle and even when I leave the nozzle in for a number of seconds, it is difficult to remove without some gas spilling (when removing, I now will drop the handle down and keep the nozzle up as much as possible, but still spits some gas). Occasionally, I can gas up without spillage but this is rare. And I am seemingly forever cleaning the paint after filling, which is getting to be a pain.

This never occurred with previous truck (1500 6.2L gas) and I am wondering if it is related to the cap-less nozzle?

Marv

Another JR · May 28, 2022

My 21 3500hd gas does not do that. I stop filling at the first shutoff. Maybe you have a kinked fueling or vent hose? The hoses are very easy to inspect, but why not ask the dealer to look at it?

sheath · May 28, 2022

Hi Marv.

I do the same as Another JR. Insert the nozzle as per the decal, and pull the lever to "implode my credit card" speed. I've never tried topping off the tank, so I don't know if it would spit back out. If you aren't "topping off" and it does this, I'd ask your dealer to look at it for sure.