I have a 2011 Chevy tahoe I have taken to dealership already for the gas tank not filling but shutting off.A new canister was installed did not help

[RAMurphy]

Welcome to the forum. As you already see, lots of knowledgeable people on this forum.

 

[09_4WD_YUKON]

Been there, done that!! Not sure what fixed mine, but just replaced the fuel pump twice in the past year and a half. The last time, about 3 weeks ago, they replaced everything, fuel pump, module, canister, purge valve, and solenoid valve, and cleared all of the lines. Has only done it once since, but truck was running while gassing up, killed the engine and it didn't do it again. I have gotten the "Tighten gas cap" msg several times tho. And was told that the fuel pump was full of the charcoal pellets this time as well. I was told by one shop that the tank would need replacing to fix this as well, but not sure how true that is.

 

[Rocket Man]

Gotta love it when a newbie comes on, asks for help, and then doesn’t come back. Joined Nov 7th, last seen Nov 7th, one post. Hmmm.

 

[OR VietVet]

Been there, done that!! Not sure what fixed mine, but just replaced the fuel pump twice in the past year and a half. The last time, about 3 weeks ago, they replaced everything, fuel pump, module, canister, purge valve, and solenoid valve, and cleared all of the lines. Has only done it once since, but truck was running while gassing up, killed the engine and it didn't do it again. I have gotten the "Tighten gas cap" msg several times tho. And was told that the fuel pump was full of the charcoal pellets this time as well. I was told by one shop that the tank would need replacing to fix this as well, but not sure how true that is.

There is no "tighten gas cap message" but there is a suggestion/recommendation of that at times.

 

[OR VietVet]

Gotta love it when a newbie comes on, asks for help, and then doesn’t come back. Joined Nov 7th, last seen Nov 7th, one post. Hmmm.

Yep, looking for the all knowing answer when we are not there and if we do answer correctly, does not come back to say so or at least give an update.

 

[donsaint51]

Not that I know of.I need to know if I am being lied to.The new canister did not fix problem and all that cost over 400.00 already.The fuel tank will not take fuel keeps shutting down.This is a 2011 Tahoe chevy I took to Jim Brown Chevy

My 2018 Cadillac had this problem. Assumed it was EVAP Canister. Nope. Had to have a new gas tank. $1,600. My 2011 Yukon has not had this problem. YET. Good luck. Irritating that the money spent did not fix the problem.

 

[Rocket Man]

My 2018 Cadillac had this problem. Assumed it was EVAP Canister. Nope. Had to have a new gas tank. $1,600. My 2011 Yukon has not had this problem. YET. Good luck. Irritating that the money spent did not fix the problem.

I can’t think of a single reason to replace the fuel tank for this. It’s only a container. The filler neck maybe, the vapor canister, vent valve, purge valve and blowing out all the plastic lines going into the fuel tank sure but not the tank itself. I would like to know the shops reasoning behind replacing the tank- did they explain that to you?

 

[09_4WD_YUKON]

There is no "tighten gas cap message" but there is a suggestion/recommendation of that at times.

Well it comes up on my dash "Tighten gas cap"

 

[09_4WD_YUKON]

I can’t think of a single reason to replace the fuel tank for this. It’s only a container. The filler neck maybe, the vapor canister, vent valve, purge valve and blowing out all the plastic lines going into the fuel tank sure but not the tank itself. I would like to know the shops reasoning behind replacing the tank- did they explain that to you?

The shop that told me this said there was a "non-servicable check valve" that would clog and not allow the tank to vent properly.

 

[Rocket Man]

The shop that told me this said there was a "non-servicable check valve" that would clog and not allow the tank to vent properly.

I have never heard of that. The vent valve is replaceable, it’s not in the tank. Strange. I do know there is no such thing on the NBS- I’ve had my tank out.