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Old 03-07-2014, 01:54 PM   #1
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Ford gas chassis F-53 cracked blue plastic cap

I noticed this winter that my Ford chassis air filter box has what looks like 1 inch nipple molded into the front (facing forward) which is covered with a blue plastic cap. The blue plastic is thin and apparently not too sturdy since the cap is cracked and either needs to be taped up or replaced.

Can anyone explain what this is for and if I need to do something other than just fix the cap.

A couple of ideas float to the top: Is this a pressure relief cap for an intake backfire or maybe something to do with water in the air box?

My chassis is a 2011 and has, as far as I know, the Ford changes incorporated that were designed to prevent water from getting into the air box; a problem with older Ford Chassis.

Thanks for any help,
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Gary, Cindy, Reacher (Maine Coon), and Vivian (in spirit only now).
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2011 Coachmen Encounter 37 TZ pulling a 2012 Wrangler Unlimited Sahara. Many upgrades, additions, mods, and changes.
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Old 03-07-2014, 02:48 PM   #2
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Got my answer from Coachmen.

It's a shipping cover and should be removed. Maybe my mileage will bump up a tad?

Interesting that the RV Dealer didn't pull it off and even more interesting that when I had it in for service at the Ford Truck dealer they didn't pull it off. I even asked them to replace the air filter so they couldn't have missed the bright blue cap even in dim light. It's over an inch in diameter.

Oh well..... more air going in might just reduce gas consumption and maybe even boost power a bit. Gas engines are big air pumps after all.

Gary
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Gary, Cindy, Reacher (Maine Coon), and Vivian (in spirit only now).
Retired: July 31st, 2013 and loving it.
__________________________________________
2011 Coachmen Encounter 37 TZ pulling a 2012 Wrangler Unlimited Sahara. Many upgrades, additions, mods, and changes.
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