What are they ?
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New User
Joined: Mar 2002
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What are they ?
Hi all. Has anyone ever looked between the front of the box and the back of the cab just below the rear window? There are two "things" on the cab wall. Anyway,I've been searching for a rattle on my '99 F250 SD reg. cab that seemed to come from just behind the drivers seat when the frame flexed. These things are close to the box and look like they might be my noise. Any ideas? Thanks, Skydan
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Joined: Dec 2001
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From: san diego usa
What are they ?
I believe they are plastic air vents. I think they are there so that the air coming in your dash has a place to go "out" when your windows are rolled up, that way the air keeps circulating.
Post Fiend
Joined: Apr 2002
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From: IN FRONT OF YOU
What are they ?
>I believe they are plastic air vents. I think they are
>there so that the air coming in your dash has a place to go
>"out" when your windows are rolled up, that way the air
>keeps circulating.
Yup, they are made with a "flap" or "check flap" so air can escape but not enter.
>there so that the air coming in your dash has a place to go
>"out" when your windows are rolled up, that way the air
>keeps circulating.
Yup, they are made with a "flap" or "check flap" so air can escape but not enter.
Postmaster
Joined: Nov 2001
Posts: 4,742
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From: OK
What are they ?
Also necessary to keep glass from flying when you shut the door(s) with the window(s) up. 
I wouldn't think the vents could move enough- or with enough force- to make noise. Have you checked the cab mounts?
I wouldn't think the vents could move enough- or with enough force- to make noise. Have you checked the cab mounts?
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Joined: Mar 2002
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What are they ?
I found the rattle behind the drivers seat. It was a loose clamp on on the toneau cover mounting rail. Thanks for the input. Now if I could just find that noise over there.......
See ya later, Skydan
See ya later, Skydan
