Muffled Rattling in rear BigBend Passenger side panel

[Summit]

There is some kind of fluttering/rattling noise in rear passenger side panel.
I thought it might be the wheel well skirt fluttering at highway speeds but it is tight.

Anyone ever have that panel off on passenger side rear?
What's in there?

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[Chiefthepup]

It might be worth checking your spare tire. I had a similar noise happening and it was the tire offset just enough to rub against the metal at every minor bump and turn.

 

[KidWiff]

I think I read a similar situation and it turned out to be the “cab vent” that lets air escape when you close your doors, back hatch, etc…. The flap that (I’m guessing) helps to keep critters out, starts vibrating at certain speeds. Could be wrong, but I seem to recall that. (My BS does it occasionally as well)

 

[Bluesteelworx]

There is some kind of fluttering/rattling noise in rear passenger side panel.
I thought it might be the wheel well skirt fluttering at highway speeds but it is tight.

Anyone ever have that panel off on passenger side rear?
What's in there?

No, but I am experiencing exhaust fumes coming into the cab. Had it to dealer three times and they all say they can't detect it. Nor have they ever heard of the problem before. I still smell exhaust fumes at every stop when the heater or ac is on. I have seen other forums where customers have reported the same thing.

 

[Summit]

Sorry to hear this. I would rather have a rattle over fumes but I would stay on it and see if you can get it resolved.

 

[Ford Motor Company]

There is some kind of fluttering/rattling noise in rear passenger side panel.
I thought it might be the wheel well skirt fluttering at highway speeds but it is tight.

Anyone ever have that panel off on passenger side rear?
What's in there?

Hi there, Kevin! If you'd like to, go ahead and send us a private message with your VIN and dealer info and I’ll look into this rattling concern. Thanks!

 

[Ford Motor Company]

No, but I am experiencing exhaust fumes coming into the cab. Had it to dealer three times and they all say they can't detect it. Nor have they ever heard of the problem before. I still smell exhaust fumes at every stop when the heater or ac is on. I have seen other forums where customers have reported the same thing.

Good morning! This exhaust fumes concern isn't something we want you experiencing. Could you privately message us with your VIN and dealer info to begin assistance? Thanks!

 

[21Broncosaurus]

No, but I am experiencing exhaust fumes coming into the cab. Had it to dealer three times and they all say they can't detect it. Nor have they ever heard of the problem before. I still smell exhaust fumes at every stop when the heater or ac is on. I have seen other forums where customers have reported the same thing.

I had the same problem with Ford Tech saying the exact same thing. It’s like these guys check the vehicle for a few minutes and move on to the next. I too need to take my vehicle back to have it inspected once again. Other members have reported a crack in the catalytic converter was the cause so maybe check there.

 

[21Broncosaurus]

There is some kind of fluttering/rattling noise in rear passenger side panel.
I thought it might be the wheel well skirt fluttering at highway speeds but it is tight.

Anyone ever have that panel off on passenger side rear?
What's in there?

There’s a few threads about noises in the cargo area. Just search for “flapping”

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