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Rear Deferential Chatter FX4

canes1

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Dale
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Truck has 700+ miles on it. Went to run some errands this morning and noticed every time I turned, left or right , the corresponding rear tire would (what I call) Chatter and squeak on the pavement.
Felt like parking brake was engaged.
Drive dial was lit up in 2H.
Stopped by local dealership, not the one I bought truck from, who said it would be at least a week before they could look at it and that it sounded like the rear differential.
I Asked one of the mechanics to check and make sure parking break wasn't engaged, it wasn't.

Told him I've only switched drive modes 2H 4H and 4L once, and all seemed to be good.
He proceeded to go through the 3 modes while in neutral, drove around parking lot and issue disappeared!

Has anyone run into something like this?

Thanks, Dale
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oldschool

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Truck has 700+ miles on it. Went to run some errands this morning and noticed every time I turned, left or right , the corresponding rear tire would (what I call) Chatter and squeak on the pavement.
Felt like parking brake was engaged.
Drive dial was lit up in 2H.
Stopped by local dealership, not the one I bought truck from, who said it would be at least a week before they could look at it and that it sounded like the rear differential.
I Asked one of the mechanics to check and make sure parking break wasn't engaged, it wasn't.

Told him I've only switched drive modes 2H 4H and 4L once, and all seemed to be good.
He proceeded to go through the 3 modes while in neutral, drove around parking lot and issue disappeared!

Has anyone run into something like this?

Thanks, Dale
Do you have a locking rear axle? Sounds like it is locked. A symbol will show in the instrument cluster. Push again to disengage. I have accidentally set mine on trying to push the start button.
 
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canes1

canes1

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Do you have a locking rear axle? Sounds like it is locked. A symbol will show in the instrument cluster. Push again to disengage. I have accidentally set mine on trying to push the start button.
Thanks for reply. And yes to locking rear axle. Theres a possibility I pushed instead of start.
 

RedTXV

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Do you have a locking rear axle? Sounds like it is locked. A symbol will show in the instrument cluster. Push again to disengage. I have accidentally set mine on trying to push the start button.
My money is on this as well.
 
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canes1

canes1

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Yes it did. Since going through the different settings, while in neutral, all seems fine.
Should 2H be lit, when in normal driving mode?
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