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Found a Capless Fuel Cap

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Hey All... Not sure if this has been posted before but I found this for the capless fuel filler.

'13-'14 RAM Cummins Capless Fuel Filler Dust Cap-Geno's Garage
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Info posted many times and still a good choice. :thumbsup:
 

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Or a Fernco cap for $3.00
 

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Find ya a Field Service Mechanic (CAT) and they will have a whole box of "caps". used for pluging up Hyd hoses when dissembled. Blue in color. FREE
 

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Okay went to Lowes and this exact one here is the problem I found, the gas door doesn't close or seal as it does without the cover. I trimmed the cap down and still not sealing the door, this will diffinately be a problem. Did I miss something, did you have to modify this and does your had door close tight? :confused013:
 

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If you look inside the new rubber cap you will see protruded ribs at different depths. Cut down to last one.
 

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A old hydraulic hose cap works well too
 

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What I mean is - isn't this fuel system supposed to be vented also? like the 2012 and earlier?
I don't believe new vehicles are allowed to vent fuel vapor any longer.
I could be wrong, but I'm fairly certain there is a vapor recovery system on all newer vehicles. No more vented caps (or caps at all as is the case here).

Anyone care to back this up or set me straight?
 

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I don't believe new vehicles are allowed to vent fuel vapor any longer.
I could be wrong, but I'm fairly certain there is a vapor recovery system on all newer vehicles. No more vented caps (or caps at all as is the case here).

Anyone care to back this up or set me straight?
When the check engine light was coming on in my 2011 megacab (almost monthly), my service rep told me to open the fuel cap to vent the system - the next day the light would go off.
 

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I don't believe new vehicles are allowed to vent fuel vapor any longer.
The vented caps weren't to vent fuel vapor to atmosphere, they were to allow air in to the system to keep the tank at atmospheric pressure as fuel was removed. That said, I have no idea whether the Ram vents through the filler neck, or through a separate mechanism and mine isn't here yet to look at.
 

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I don't believe new vehicles are allowed to vent fuel vapor any longer.
I could be wrong, but I'm fairly certain there is a vapor recovery system on all newer vehicles. No more vented caps (or caps at all as is the case here).

Anyone care to back this up or set me straight?
That is true for gasoline - diesel is far less volatile, so the vent systems tend to be far more open.

- Tim
 

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It doesn't matter because there is no way to create an airtight seal on this filler. The v cut in the front prevents it no matter what cap you put on it.


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Disregard, looking at the picture above and looking at my filler again it appears a piece is broken off of mine. Been that way since new so I thought that was how it was supposed to be but on closer inspection it is clearly a broken off section. See picture. Water Auto part Automotive wheel system Wheel Automotive tire



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