For all of you Chev Silverado owners - gas issues

Just passing on a couple problems and cures I have had with my 2015 Chevrolet Silverado 4 door LZT. First I was having problems filling the gas tank. I couldn't get 5 seconds of gas into the tank without the gas pump shutting off. I had to fill the tank with the gas nozzle just inserted slightly so the air could escape. If you look into where the gas pump nozzle goes you will see it fits the nozzle very tight. Gas goes in and the air in the tank has to go out. That air vents through a vapor canister. If you drive a lot gravel roads the canister gets plugged. Sure enough, a new canister and the tank fills like the pickup was new! I was also having a gas smell between the cab and box. People would say I smell gas. Well I knew it but I had to finish planting before I could do these repairs. The little metal pipe coming out of the pump had rusted badly and was starting to seep gas. It would get all of the road dust on top of the tank wet and then evaporate giving off the smell. I never had a puddle of gas. Actually when I lowered the tank the corrosion was so bad the metal pipe actually broke off. It was time to get it fixed before I got stranded on the road. These two problems are fairly simple to diagnose, not terrible to fix, but both the canister and pump are pretty pricey.

That can happen if only driving on paved roads too. Resist the temptation to over fill the fuel tank after the gas pump shuts off. Over filling the fuel tank dumps excess gas into the charcoal filter. When too much fuel accumulates in the canister an air lock can prevent filling the tank until the canister is replaced.

I have a 2015 Silverado I stop filling when it shuts off. I haven't noticed any problems yet.

Good advice for those driving on dirt roads a lot.

Occasionally have the same issues with our 2012, but I blame it on the pump at the gas station because it does not do it all the time.

I have a 2014 Silverado but never had that problem but I have had to replace all fuel injectors on drivers side and 8 months later had same problem on passengers side. Pretty expensive. I use STP injector cleaner in both my vehicles. I have owned several vehicles in my life but this is the first vehicle that I have ever needed to deal with the injectors.

Had that problem on our 2015 work truck. It was under warranty the first time. Then $500 the second time and not very long after the first time. there is a you-tube video on how to take them off and wash them with a garden hose.

It's worth mentioning, vapor cannisters are in all vehicles, not just GMs.

Im glad you were able to solve your problems. As far as rust, my 2007 2500 was a rust bucket from day one. Had to replace the fuel line, every brake line and even the brake control box. It literally fell apart when trying to replace it. Kept the the truck clean, lubed and serviced but it seems I was always chasing rust. I will never buy another.

I have a 2015 Silverado 2500HD, no issues. Drive some dirt roads now living in CO. Will have to pay attention should an issue arise.

Good afternoon, andy-r and all: I have a 2005 Silverado I bought with 24,000 miles on it in December, 2005, so it was still that year's model. It now has just over 100,000 miles, still runs ok. When I fill tank, sometimes I try to "pack it in" (topping), but never a problem. Also, nothing rusts here in West Tennessee, so the rust problem doesn't affect folks here. I grew up near Chicago, and have cousins in Michigan, so I know what rust is! Glad to be away from that.

Dennis M. in W. Tenn.

(quoted from post at 10:10:37 06/06/22) Im glad you were able to solve your problems. As far as rust, my 2007 2500 was a rust bucket from day one. Had to replace the fuel line, every brake line and even the brake control box. It literally fell apart when trying to replace it. Kept the the truck clean, lubed and serviced but it seems I was always chasing rust. I will never buy another.

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Fluid Film. I live in Northern NY, the heart of the Rust Belt. I'd still be driving my 91 Toyota if we'd had Fluid Film back then.