Gas Cap

[captdbg]

2017 Yukon or Tahoe No Gas cap?

 

[cardude2000]

2017 Yukon or Tahoe No Gas cap?

Mine is a 2016 and no gas cap

 

[dbbd1]

Yeah, weird, huh?

But if you really want one...

https://amistyling.com/cap-less-fuel-filler-dust-cap-6540

 

[Blueinterceptor]

17. No cap

 

[ncpepperman]

Yeah, weird, huh?

But if you really want one...

https://amistyling.com/cap-less-fuel-filler-dust-cap-6540

Then there is Sch 40 PVC 2" pipe cap for about a Buck. Drill a hole towards the bottom and hook it to the door. Water tight and dust proof , matching colors for White and Black vehicles .......

 

[dbbd1]

Then there is Sch 40 PVC 2" pipe cap for about a Buck. Drill a hole towards the bottom and hook it to the door. Water tight and dust proof , matching colors for White and Black vehicles .......

View attachment 196078 View attachment 196079

D@mn great idea! 2", you say? I'm on it. Thanks.

 

[ncpepperman]

D@mn great idea! 2", you say? I'm on it. Thanks.

2"I'D Sch 40 PVC Cap is 2 3/8 ID. Works like a charm. Drill u a little hole and hank it on the hook or attach some cord.

 

[PG01]

Then there is Sch 40 PVC 2" pipe cap for about a Buck. Drill a hole towards the bottom and hook it to the door. Water tight and dust proof , matching colors for White and Black vehicles .......

View attachment 196078 View attachment 196079

Good idea, i like that. Reminds me of when i was a kid and my father was looking for the cap to his overflow on our ‘76 allegro motorhome and i grabbed the top off the small can of spray paint and put it on, it fit perfectly...

how long have you had that on? Throwing any cels? Just curious about the venting or if it’s causing any issues..i guess not or you wouldn’t have posted.

 

[ncpepperman]

Good idea, i like that. Reminds me of when i was a kid and my father was looking for the cap to his overflow on our ‘76 allegro motorhome and i grabbed the top off the small can of spray paint and put it on, it fit perfectly...

how long have you had that on? Throwing any cels? Just curious about the venting or if it’s causing any issues..i guess not or you wouldn’t have posted.

It's been on a couple months and doesn't seem to affect anything. The "capless "filler is sealed so there isn't any venting concerns. I've knocked it off the hook while filling a time or two and that is the only drawback I've had. I've noticed some water and dust behind the door at times so this is just a little extra insurance

 

[zbad55]

Ok I have to ask, what is the reason for wanting/adding a cap to the capless filler pipe?

 

[dbbd1]

Ok I have to ask, what is the reason for wanting/adding a cap to the capless filler pipe?

Moisture, dirt/dust. Some people actually report snow build-up in there at times.

 

[zbad55]

Those capless filler necks are totally sealed from outside elements, there is a inner and outer sealed system to prevent that. Not sure how snow could build up with the fuel door closed but it would not be an issue anyways with the sealed system.

 

[ncpepperman]

Those capless filler necks are totally sealed from outside elements, there is a inner and outer sealed system to prevent that. Not sure how snow could build up with the fuel door closed but it would not be an issue anyways with the sealed system.

Nothing is 100 %. Dust and water from a high pressure wash can make it in behind the door. Stick the gas nozzle in the filler and you 're risking junk getting in your tank. For a buck, why not stack the odds in your favor. Not a good design on a $70,000 vehicle ... always looking to improve on a possible problem...

 

[dbbd1]

2"I'D Sch 40 PVC Cap is 2 3/8 ID. Works like a charm. Drill u a little hole and hank it on the hook or attach some cord.

Yep, 2-3/8" ID

Nope, no workie for me. Mine just slides around on the slightly raised area. It doesn't stay on there. It looks like mine needs to be 2-3/4".

 

[ncpepperman]

Yep, 2-3/8" ID

Nope, no workie for me. Mine just slides around on the slightly raised area. It doesn't stay on there. It looks like mine needs to be 2-3/4".

What year is yours? Mine is 2 3/8 diameter and slips right to the base of the filler. I'll take more measurements in the AM and post it. Sorry it didn't fit

 

[dbbd1]

No prob. Mine is a '16 Yukon.

 

[PG01]

No prob. Mine is a '16 Yukon.

Dammit dave, fix it..

 

[ncpepperman]

Yep, 2-3/8" ID

Nope, no workie for me. Mine just slides around on the slightly raised area. It doesn't stay on there. It looks like mine needs to be 2-3/4".

Cap I'm using is 2 1/4 long, 2 3/8 ID. SCH 40 PVC. Fits all the the way to the bottom of the filler. Someone posted vinyl caps on this site to cover the filler for about @ $10..... My Denali is an '18 .

 

[ncpepperman]

Here is another option with the vinyl caps. Seems the pickup line doesn't have the gasket around the filler door like the Yukon, allowing snow to build up.

https://www.ebay.com/itm/Vinyl-Roun...a91415a0a785462d4330ffe8544c%7Ciid%3A10&varId

 

[ncpepperman]

No prob. Mine is a '16 Yukon.

Looks like there might be a difference in the years. Bulletin from GM