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Fix for capless filler

58K views 192 replies 49 participants last post by  hemirt 
#1 ·
Today I replaced my capless filler with a cap type. I bought my cap type from rockauto for a 2014 Jeep Grand Cherokee Diesel that they have listed.
 
#4 ·
It is really easy to do too.
1.Jackup left rear and remove the tire
2. You will see the removalable plastic keepers that hold the felt wheel well liner in place, I removed all of them but the plastic reivets
3. You will see at the top rear of the wheel well a 10mm head bolt remove it
4. the lower front of the wheel well is another bolt remove it.
5. Carefully pull down the wheel well liner, it will not come completely out because of those plastic rivets you did not remove
6. You will see at the top 2 10mm nuts holding a electrical device and the filler tube, remove those and sit the electrical device aside
7. There is also another 10mm nut looking towards the front of the wheel well remove it.
8. There are 2 vent lines attached to the tube, disconnect them
9. There is at the bottom front of the wheel well a rubber hose with a hose clamp on it, loosen the clamp and twist the filler tube of the hose and remove it.
10. Assembly is as easy.
 
#12 ·
Because the fuel door itself does not seal against water and dirt. Either can get past it and potentially into the capless filler. It's basically just peace of mind cheap insurance.
 
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#13 · (Edited)
Part number(s) and pics if possible, please. Does it come with a cap retention strap, or did you rig a cap hanger on the fuel door, etc?

May I ask why one would want to make this modification? What's wrong with the capless setup?
Others have pointed out the insufficiency of the fuel door to keep out dust and water. Furthermore, it's not as if a capless filler is especially useful on a diesel, given that one must wear gloves while refueling anyway. Finally, at least in my case, my capless filler is broken and needs to be replaced.
 
#15 · (Edited)
While I truly appreciate the fastidiousness and concern on this issue, I wonder if it isn't being overthought? I suppose if your daily routine takes your rig through very dirty, wet conditions it might be, as someone pointed out earlier, cheap insurance.

Having said that, it occurred to me another much easier approach, would be to measure the outer diameter of the filler neck and get a good Camera Lens Cover (the snap on kind) to put over it. No tools required. :D
 
#16 · (Edited)
While I truly appreciate the fastidiousness and concern on this issue, I wonder if it isn't being overthought?
Fair enough, and some of these other solutions are very straightforward. I would be interested to see your camera lens cover idea implemented.

My interest is primarily based on the fact that my capless filler needs to be repaired; if I'm in there fixing it already then it may not be much extra work to swap out for a nice, capped filler.
 
#22 · (Edited)
Some one left one of those at the shop a few months back telling me this should be my next project. That one doesn't fit. This cap less thing is kinda stupid but at same time I'm pretty sure the fuel and water filter/ separator takes care of that. With that said I have a top of the line fuel filter water set up on my cummins and still prefer a capped fuel fill port.

I have an idea that will be pretty bad ass. You guys will love it. Basically I'm trying to design one where the bottom side is rubber. The whole assembly will have a stud that run thru it. Put on the cap rubber side down. Turn a wing nut and it will compress the rubber to expand and create a tight seal :). And there will be some type of tether you bolt somewhere.

I probably shouldn't have said it. But whatever lol. I hav a little head start.
 
#33 · (Edited)
The fact is the fuel door does not seal well against water, dust or dirt. Our friends from Oz (and a large percentage of them who actually get their GC's dirty) have posted several pictures of what gets past the fuel door gasket. If you have a concern about stuff like that then you wouldn't want that getting into a gas filler nozzle any more than you would a diesel filler nozzle, right?

You can spend your money on your setup and I'll be perfectly happy with my spray can cap. I've been using it for the better part of a year and it works perfectly. The nice thing is that I can pop it off and pop it on my next Jeep. If by chance Jeep redesigns the filler nozzle by then, well, I'm not out anything.

I spent nothing for a little peace of mind, so don't blame me for laughing. :D
 
#35 ·
You spend over $40k for a vehicle and you are worrying about less than $100. The gas type Jeep uses a fuel pump in the gas tank and is not a high pressure fuel system. Working with diesels for most of my life and Aviation our wonderful fuel filter does not filter everything. The wonderful thing this is your choice.
 
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