Fuel filling issues

bcato · March 5, 2019

I've noticed that you don't even try to pack in that little bit of extra fuel.

Smitty · March 5, 2019

No issues with mine. I do however want a cap, I don't like the cap-less at all, I worry about dirt \ water getting in there. I was spraying the truck off the other day and the water lifted the gas door open, that's all I need is a direct shot of water in there. It's too easy for someone to mess with it also.

Thoughts?

OnTheReel · March 5, 2019

1 hour ago, Smitty said:

No issues with mine. I do however want a cap, I don't like the cap-less at all, I worry about dirt \ water getting in there. I was spraying the truck off the other day and the water lifted the gas door open, that's all I need is a direct shot of water in there. It's too easy for someone to mess with it also.

Thoughts?

I bought a cover on eBay for 7 or 8 bucks. Think it’s just a glorified bearing buddy cover but whatever. They also sell locking ones at the auto parts store.

Supposedly there’s a drain in the spout that stops the water, but at least in the winter I like my little cover for some peace of mind.

Smitty · March 6, 2019

16 hours ago, OnTheReel said:

I bought a cover on eBay for 7 or 8 bucks. Think it’s just a glorified bearing buddy cover but whatever. They also sell locking ones at the auto parts store.

Supposedly there’s a drain in the spout that stops the water, but at least in the winter I like my little cover for some peace of mind.

That's perfect, thank you! It does look like a bearing buddy cover exactly... but hey, if it works!

Cpl_Punishment · March 6, 2019

20 hours ago, Smitty said:

No issues with mine. I do however want a cap, I don't like the cap-less at all, I worry about dirt \ water getting in there. I was spraying the truck off the other day and the water lifted the gas door open, that's all I need is a direct shot of water in there. It's too easy for someone to mess with it also.

Thoughts?

I remember seeing another thread on this with a bunch of different low cost options.

Smitty · March 7, 2019

I actually found some good information on how the whole capless system works which makes me feel better. I don't have the link still but it was right from GM. Most systems have a spring loaded door with a rubber seal on it where the gas nozzle has to go through, so there is some force involved etc. GM has 2 of these doors \ flaps not just one making sure dirt \ water doesn't get in there. There is a gap between the outside and the actual flaps as well to allow dirt \ water to fall through before it gets to those flaps and into the tank as well. The system has been around for quite a while, I wasn't aware of any of this. It's also nice because you don't have to worry about losing that cap or getting the dreaded engine code that shows when the cap isn't on! I still kind of want something to cover it because i'm funny like that but it sounds like they really thought this through and you don't NEED one. I would appreciate something that held the gas door closed instead of just a spring though, I want to keep the inside clean regardless.

Cpl_Punishment · March 7, 2019

1 hour ago, Smitty said:

I actually found some good information on how the whole capless system works which makes me feel better. I don't have the link still but it was right from GM. Most systems have a spring loaded door with a rubber seal on it where the gas nozzle has to go through, so there is some force involved etc. GM has 2 of these doors \ flaps not just one making sure dirt \ water doesn't get in there. There is a gap between the outside and the actual flaps as well to allow dirt \ water to fall through before it gets to those flaps and into the tank as well. The system has been around for quite a while, I wasn't aware of any of this. It's also nice because you don't have to worry about losing that cap or getting the dreaded engine code that shows when the cap isn't on! I still kind of want something to cover it because i'm funny like that but it sounds like they really thought this through and you don't NEED one. I would appreciate something that held the gas door closed instead of just a spring though, I want to keep the inside clean regardless.

I can't believe that a truck that can cost north of $80k CAD doesn't come with a locking gas cap.

eppieguy · March 7, 2019

I've had the same type of system since I purchased my 2014 Corvette, I was never really a fan of it but it's been flawless for almost 5 years now. The Corvette isn't out in the weather or slop that the truck is out in but I'd have to assume that they are pretty sure of themselves now that they are using it on the trucks.

OnTheReel · March 7, 2019

The main reason I bought the cap is because after a winter car wash, I had some ice sitting on the first flapper. Undoubtably if me (or my old lady) just jammed a fuel nozzle into it, that ice would be pushed past both flappers and right into the tank.

A small amount of water may not hurt but really it’s no trouble for me to pull a rubber cap off. It’s not like I didn’t have to unscrew a gas cap on every other vehicle I’ve owned anyway.

smit303 · March 8, 2019

I spend a lot of time down North Carolina's OBX. The wind blows the sand into every imaginable place when it's really ripping. I've seen a little pile of sand right on top of the trap door. I use the plastic 'bearing buddy 'cover shown by others when I'm down there.

MacPH · November 17, 2019

On 11/9/2018 at 10:29 PM, Btown said:

Have a 2019 Silverado. Filled truck up 4 times now at 4 different stations in 2 different states. As gas tank fuel filler neck gets full gas nozzle shuts off and gas shoots out of filler neck all down the side of my new truck. If I did not jump out of the way it would be on me too. This is a brand new truck and has done this from day one. Plus gas all over the paint can’t be good for the clear coat. It’s not the gas pump since it does it everywhere and I have tried jamming the nozzle in as far as I can get it and tried pumping the gas very slow. Always same result, pump cuts off and then gas projectiles out of the filler neck. Anyone else have this issue? Thanks

This just happened to me. New 2019 w/ 3k miles on her. First time it’s happened, and I’ve had a 15 and an 18. My 15/18 had the annoying fuel neck issue where the auto pump would cut off constantly, but not this. Going to call dealer tomorrow about the fuel filter hose. Has the fix held up?

Btown · November 18, 2019

Stitch : I took mine to my dealer and they could not find anything wrong with the filler neck. Next time I fueled up problem was magically gone so I don’t know what fixed it or if just checking unclogged something ?

AlaskaErik · November 20, 2019

On 3/5/2019 at 4:43 PM, OnTheReel said:

I bought a cover on eBay for 7 or 8 bucks. Think it’s just a glorified bearing buddy cover but whatever. They also sell locking ones at the auto parts store.

Supposedly there’s a drain in the spout that stops the water, but at least in the winter I like my little cover for some peace of mind.

That's odd...my filler port is on the right side and the rubber plug for the DEF is on the left. And mine is also a 6.2L.

Edited November 20, 2019 by AlaskaErik

MacPH · November 21, 2019

On 11/17/2019 at 10:02 PM, Btown said:

Stitch : I took mine to my dealer and they could not find anything wrong with the filler neck. Next time I fueled up problem was magically gone so I don’t know what fixed it or if just checking unclogged something ?

Hopefully it's fixed, but I've got about 6 tanks in mine and this is the first time it happened. Thinking back on it, the truck was autostopped and I don't think I ever turned off the ignition because I'm not used to the auto stop and didn't hear the engine.

Only X factor I can think of vs. the other tanks that filled fine, was yours completely off when you filled up?