‘13 Explorer rear grinding noise with any speed

[sparty87]

I have a 2013 Explorer with 156k miles on it, I drove 200 miles Saturday morning no issues. Parked it and later than night was going to go somewhere and as soon as I backed up could hear a noise coming from rear. It’s almost like a grinding noise, as soon as I accelerate at all. It happens in reverse and going forward.

I can’t hear it when outside the vehicle! It sounds like it’s coming from rear right side more than anything. I listened right next to back right tire and I hear a slight maybe binding noise.

Thinking it may be a bearing, any thoughts?

 

[peterk9]

Welcome to the Forum.
It could be a bearing or perhaps it is the brakes you hear grinding. Ford Explorer: Are Your Rear Brakes Dragging... Most Likely Yes!

Peter

 

[sparty87]

Welcome to the Forum.
It could be a bearing or perhaps it is the brakes you hear grinding. Ford Explorer: Are Your Rear Brakes Dragging... Most Likely Yes!

Peter

Right rear caliper was seized up. Do I use Dot 4 or Dot 3 brake fluid? Cap says dot 4...but when I tried to buy dot 4 the person at Oreillys said that dot 4 is only for motorcycles.

 

[peterk9]

This is what the Owner's Manual shows on page 406 of the 4th printing;
Ford Part Name or
equivalent
Motorcraft DOT 4 LV
High Performance
Motor Vehicle Brake
Fluid
Ford Part Number / Ford
Specification
PM-20 /
WSS-M6C65-A2 and
ISO 4925 Class 6

Peter