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Musty interior smell

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Old Apr 22, 2025 | 07:11 AM
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Musty interior smell

If my truck is closed up for a couple of hours it has this nasty musty smell inside. I don't see any standing water but with the threads discussing water leaking in I'm wondering if I do have a water leak somewhere and it's just not manifesting itself somewhere visible. Any suggestions as to where I should start looking?
 
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Old Apr 22, 2025 | 08:24 AM
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Maybe in the HVAC, they make a product you run through the outside air inlet to kill mold and mildew.
 
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Old Apr 22, 2025 | 09:48 AM
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From: Itinerant
Cabin filter been changed lately?
 
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Old Apr 22, 2025 | 02:48 PM
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Originally Posted by scraprat
Cabin filter been changed lately?
no I've never changed it but I don't see how that could be the source unless it's been getting wet?
 
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Old Apr 22, 2025 | 03:20 PM
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From: Flint
Have you been running the AC lately?
 
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Old Apr 22, 2025 | 04:09 PM
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Originally Posted by Garbageman 134
no I've never changed it but I don't see how that could be the source unless it's been getting wet?
Some wet debris could have gotten caught in it maybe.
 
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Old Apr 22, 2025 | 04:14 PM
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Originally Posted by Ry Guy
Have you been running the AC lately?
Not at all
 
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Old Apr 22, 2025 | 05:22 PM
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I checked the cabin air filter and it was fine, barely any dirt and no smell
 
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Old Apr 22, 2025 | 05:31 PM
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From: Flint
Originally Posted by Garbageman 134
Not at all
Gotta be a leak then
 
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Old Apr 22, 2025 | 06:10 PM
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Originally Posted by Ry Guy
Gotta be a leak then
I'm sure the dealer is going to put all their best efforts into finding it :/
 
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Old Apr 23, 2025 | 08:41 AM
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So I pulled up the driver's side door channel cover and found evidence of water intrusion. The passenger side looked clean




 
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Old Apr 23, 2025 | 08:44 AM
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i had that problem in an escape (found leak and fixed) but the smell remained for a while. I opened all the doors. used big shop fans to blow out the inside. Used a shop vac and sucked all water out of floor mats. It was all "dry" but smell persisted so I bought some damp rid at the grocery store and hung off the back of the seat. When I parked, I cracked the windows and only used the AC on fresh air. The smell and mustiness disappeared after a few months.
 
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Old Apr 23, 2025 | 08:55 AM
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Driver's side rear door channel.



 
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Old Apr 23, 2025 | 09:24 AM
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UPDATE. I found the source of the smell. It's the fabric mesh that pops up when the sunroof is open. Apparently water is sitting up in that channel and the fabric is absorbing it and that's what's turning into mildew so now I need to figure out how to remove that mesh to wash it and then look at the drain tubes to make sure that they are open. I'm wondering if that's how water is channeling down into the driver's side door c hannel
 
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Old Apr 23, 2025 | 09:40 AM
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There are some threads in the forum that address sunroofs leaking. You might try taking a look at those to see what others have done (and you might find your answer there).

The forum search option is fairly lacking in finding results, so you're better off using your preferred web search engine instead. Just add "site:ford-trucks.com" to your search terms (minus the quotes). I've had much better results doing forum searches that way.

Happy hunting, glad you found the source of the leak.
 
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