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Discussion Starter #1
Has anyone ever come across a diagram/picture of the air re-circulation door flap/seal that makes a hooting noise above 40 mph only in re-circ mode? I would like to repair mine but not sure where it is located. Any input appreciated. Regards, Ahbt7
 

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I ordered the seal kit from LR which should come Thursday, we shall see what it consists of. I will compare to see if there is a less expensive alternative to $36 tape from LR. I generally try to use genuine parts, so not much care from me. I found a few pictures, a few pages of information but not a ton. I believe I can do the job though easily. Doesn't look like it should take more than 20 minutes, very likely less.

I'll reply with proper pictures and part numbers with links soon. Thanks.
 

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Alright, picked up parts. Pretty simple job kind of a pain to get the new seals to stick correctly.

Took all of 10 minutes.





There’s the bag of things you get for $26.
Included two new seals, adhesion promoter, and surface wipes.



Start with removing the cowel, it’s in place with two nuts and the seal above it slides off.

Turn the key on to position 2, or press the start button without foot on brake. It should open the flaps.



Marked in red is the area that you will apply the new seal to. The seals are very thin clear rubber. Clean first with the isopropyl wipe, then adhesion promoter. Then position seals on and press firmly so that they adhere correctly.





Sent from my iPhone using Tapatalk Pro
 

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Discussion Starter #7
Thank you for your time and effort in posting those pictures! I had that cabin filter assembly out in January looking at the back of my supercharger, didn't really notice the noise until after that. Have you driven yours yet to confirm the fix? Thanks again Keralis
 

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Yes the fix worked, no more howling at any speed, only took it to 65MPH, but I'm sure it'd be fine at higher speeds (more pressure on the seal)... Make sure to clean all of the rubber and foam seals around on the cabin air assembly and on the actual truck. Maybe some light lubricant would help keep the seals moist.
 

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Ahbt, kczach, neither of you have your year and models noted or in your signatures. Are your rigs the same as the 2010 or 2011 that Keralis repaired?
 

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Are your rigs the same as the 2010 or 2011 that Keralis repaired?
Good opportunity to add in the TSB (which I’ve skillfully lost somewhere here on the World Wide Web) is meant for 2005-2012 L322s, but issues have been recorded and the fix will supposedly work on 2002 through 2004 L322s.


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I have bad news: Hopefully no one has followed my guide..

The new seal has to go on the actual truck part, not the door as I have pictured. I learned the hard way doing about 100 on the freeway today. Seal flew off into the duct, but I was able to retrieve it. Whistling is now all the time without recirc being on.

If you've followed my guide, I apologize tremendously that I posted misinformation, Mod, please delete the writeup in case anyone tries to follow it. I will post an updated guide as soon as the new seal kit arrives.
 

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Discussion Starter #14
Keralis, when you say truck part do you mean the actual housing that the recirc door seals against? I ordered the kit, hopefully it will have some instructions with it. I removed my cabin filter housing and put some silicone/rubber lubricant on the recirc door seals, the sound was gone for a day but has started to return. The tsb doesn't appear to have any instructions with it, hopefully the kit will. Thanks again
 

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Yes, the piece that the door seal rests on. The kit did not include instructions unfortunately.

I've learned the seal must be completely smooth to allow a proper seal, so possibly the silicone was wavy? I stopped by HD for a new weed trimmer and looked for a similar seal to JLR's but couldn't find anything.
 

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Discussion Starter #17
Thanks sowr, just what I was looking for. Interesting it's only the right side, left and right look symmetrical, so does the plenum chamber.
 

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I have just finished installing the kit - I was supplied with 2 identical seals which would only fit the right hand vent seal area. I'm assuming two are supplied with one of them being a backup in case you mess up the initial installation. I installed on the right side only and will report back as to whether the noise has gone. I have attached some photos from the installation - it's quite simple. I've attached a few photos.

IMG_7246.jpg IMG_7247.jpg IMG_7243.jpg Untitled-1 copy.jpg
 

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So far so good but I've only been on the freeway for short drives (8 miles). I have a couple of long road trips coming up this weekend and next - if I don't get it on those (because I always do) then I'll call it fixed. Thanks for checking in - I'll keep you posted.
 
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