02 Mercury Mountaineer "rear dragging" problem caused by new/old tires...maybe?
Hi all,
My father in law has an 02 Mercury Mountaineer and it has had a "grabbing/dragging" problem from the rear tires since she got two new front tires on it. The rears have about 1/8" less tread on them, so that is 1/4" less diameter (tires are same brand/model) than the fronts.
I've already examined the parking brakes on the rears as well as the brakes and rotors. I've also changed the rear diff. fluid w/ synth 75w-140 w/ Ford Motorcraft friction modifier added.
I've also thought it could be ABS, but I disabled ABS to see if that was it and it wasn't....
What do you guys think? I hope it's not a bad rear differential or transfer case....
The fluid didn't look terribly chunky or viscous, and there wasn't any big metal shavings...only the little gooey stuff that came off of the fill plug magnet.
Hi all,
My father in law has an 02 Mercury Mountaineer and it has had a "grabbing/dragging" problem from the rear tires since she got two new front tires on it. The rears have about 1/8" less tread on them, so that is 1/4" less diameter (tires are same brand/model) than the fronts.
I've already examined the parking brakes on the rears as well as the brakes and rotors. I've also changed the rear diff. fluid w/ synth 75w-140 w/ Ford Motorcraft friction modifier added.
I've also thought it could be ABS, but I disabled ABS to see if that was it and it wasn't....
What do you guys think? I hope it's not a bad rear differential or transfer case....
The fluid didn't look terribly chunky or viscous, and there wasn't any big metal shavings...only the little gooey stuff that came off of the fill plug magnet.