Front grinding sound

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Mar 10, 2017 | 09:13 AM

Gaford229

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5th Wheeling

Joined: Jan 2017

Posts: 44

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Front grinding sound

have a bad grinding sound when im braking but it only seems to happen while im pulling my cargo trailer. Took truck to ford they checked brakes rotors etc said everything was good. Finally they decided to replace my left iwe to see if that fixed it. Needless to say that wasnt it. the times is happens is coming to a stop then starting again and backing up. Once i get going it goes away. Any help is appreciated before i have to go back to dealership. Thanks

Mar 10, 2017 | 11:00 AM

PupnDuck

Fleet Mechanic

Joined: Jul 2005

Posts: 1,470

Likes: 108

From: Staten Island, NY

How heavy is your trailer and does it have brakes? Is the trailer tongue weight within normal limits. The fact that it only happens when you're towing seems to be the clue. Depending on how you're loading the tow vehicle you could be transferring too much weight to the front brakes. Just a thought.

Mar 10, 2017 | 11:09 AM

Gaford229

Thread Starter

5th Wheeling

Joined: Jan 2017

Posts: 44

Likes: 1

The trailer weighs about 4800 pounds loaded a good bit of my weight is in the middle to front of the trailer. Driving a 16 2.7 ecoboost supercrew fx4

Mar 10, 2017 | 11:56 AM

REDFORDFX4

Senior User

Joined: Mar 2006

Posts: 275

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From: Minnesota

My 2015 has same sound but not pulling trailer?

Mar 10, 2017 | 11:59 AM

alloro

Fleet Owner

Joined: Apr 2008

Posts: 24,324

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From: 0,0,1

Quote:

Originally Posted by Gaford229

Took truck to ford they checked brakes rotors etc said everything was good.

My guess is they only inspected the outer rotor surface and not the inner surface. I saw this happen a car, same thing grinding while braking. Everything looked good until I started removing the rotors and found the front left inner rotor surface had a chunk missing from it.

Mar 10, 2017 | 12:38 PM

Gaford229

Thread Starter

5th Wheeling

Joined: Jan 2017

Posts: 44

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Its strange it only does it occasionally not all the time? Mornings are the worst

Mar 10, 2017 | 03:13 PM

REDFORDFX4

Senior User

Joined: Mar 2006

Posts: 275

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From: Minnesota

Quote:

Originally Posted by Gaford229

Its strange it only does it occasionally not all the time? Mornings are the worst

Same on mine is very random when it happens?

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Mar 12, 2017 | 02:26 PM

ctflyerfan

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Joined: Nov 2010

Posts: 7

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I had the same problem. Replaced left iwe, the side we thought noice was from and didn't fix it. Replaced right iwe and seems to have done the trick.

Mine was intermittent and not while towing. Couldn't get it to replicate for dealer. Finally became constant. Feels like a bad wheel bearing.

They assured me that driving 8k miles until they could find and fix "did no further damage". I'm skeptical.

Mar 12, 2017 | 06:56 PM

#10

Gaford229

Thread Starter

5th Wheeling

Joined: Jan 2017

Posts: 44

Likes: 1

Quote:

Originally Posted by ctflyerfan

i can feel the grinding on the brake gas and steering wheel when it occurs. Since having the left iwe changed out it only happens when towing as of now. Even in reverse it does it. Going back to dealership wed am.