Front Mud Flap Noise
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New User
Joined: Nov 2020
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From: Kenosha, Wi
Front Mud Flap Noise
Our truck came with the Ford front mud flaps. Our issue is in windy conditions or at highway speeds the mud flaps bend in the wind and it sounds like you just drove over a rumble strip. Not bad if it only happens occasionally but constantly over hours on trips gets old fast. We do like the mud flaps as they actually work. Big and long. Any suggestions on how to quiet this noise? Thanks
Post Fiend
Joined: Nov 2001
Posts: 6,748
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From: Tallassee, ALabama
Are these the molded ones or the flat rubber ones?
You could run a short brace from the body down to a point a few inches below the fender if the flat style. The Ford Accessories mud flaps come with a short brace that mounts to the body and to the mud flap below fender level.
You could run a short brace from the body down to a point a few inches below the fender if the flat style. The Ford Accessories mud flaps come with a short brace that mounts to the body and to the mud flap below fender level.
Post Fiend
Joined: Nov 2001
Posts: 6,748
Likes: 118
From: Tallassee, ALabama
Try a short brace running from the body pinch weld down to a lower point of the splash guard?
Might want to check to make sure the splash guards have not rubbed the paint off the fender. On my 2015, the molded right front splash guard rubbed the paint off. Ford did warranty it and repainted the fender and tu-tone accent. I changed from the molded ones to the flat flap style.
Might want to check to make sure the splash guards have not rubbed the paint off the fender. On my 2015, the molded right front splash guard rubbed the paint off. Ford did warranty it and repainted the fender and tu-tone accent. I changed from the molded ones to the flat flap style.
Fleet Mechanic
Joined: Oct 2017
Posts: 1,704
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From: Southwest Ohio
Aren't the OEM mud flaps not very long? Unless it's not affixed to the fender edge properly I dont think it is flimsy enough to make noise.
It might not be the mud flap making the noise. I would remove them both and take it out for a drive and see if the noise is still there. I recently repaired a work truck where the under-body heat mat material was flapping due to two broken plastic push rivets (the owner thought it was the splash shield).
-- Dave
It might not be the mud flap making the noise. I would remove them both and take it out for a drive and see if the noise is still there. I recently repaired a work truck where the under-body heat mat material was flapping due to two broken plastic push rivets (the owner thought it was the splash shield).
-- Dave
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Joined: Nov 2020
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From: Kenosha, Wi
Our truck is a 2020 F350 Dually. They are the Ford mud flaps that were on the truck when we bought it. These are fairly long and wide. Except for the noise, they look like they might actually work. With the electric running boards and the dually fenders, anything that blocks snow, road salt, rocks from heading backwards is what we are looking for. Other after market flaps such as Weather Tech are stiffer but much shorter. Looks like stiffening them up will be the way to go. Thanks for the help!!
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From: Kenosha, Wi
Finished
Thanks for all the input. I finally had time to get under the truck and find out what was going on. It turns out, both the mud flaps were tearing at the top. Wouldn't have been long and they would have split all the way and fallen off. Way to flimsy of material to last. The truck has hardly ever been driven in the rain let alone snow to hang on the flaps. Only thing I can figure is they couldn't take the wind at highway speeds in west Texas and Utah where they get up there around 80. I now have a nice set of Weathertech on and quiet has been restored!!
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