2002 Mountaineer SUV, 4WD, Especially while turning the wheels

4wd?? Check CV shafts. Also look for whats rubbing. whre is the dirt rubbed off.

If its four wheel drive it may be velocity joints going bad.

if this is a 4wd drive model , try having someone listen to front wheel hubs when you back up , id be conserned that the front wheel hubs seals have gone bad and there is now dirt inside bearings and has damaged them , also ive seen clicking caused by locking hubs not fully disengauged by dirt stuck inside

It sounds like a wheel bearing is going bad. They are easy to change. If you have a place to jack the vehicle up. Try spinning the front wheels. You should hear a scraping noise as the wheel turns.Also replace both sides at the same time,as the otherside is not far behind.

sounds like you have a bad wheel bearing. the play in the bearing causes the brake rotor to rub on the caliper or the abs sensor rubs on the toner ring of the rotor.. check your wheel bearing.. hope this helps..

I would take it back and tell them you just spent 3k and they didn't fix it. And you dont feel it should cost you anymore for them to fix it. If it is making a noise how can they say there is nothing wrong? Could be as simple as a brake backing plate rubbing the brake rotor. It may have got bent slightly when they replaced the bearings and other parts.

check the front wheel bearings

if you slide under the truck and try moving the cv with your hands and there is any looseness in joint or noise the joint is indeed worn out, the cv joint if bad should not stop the truck from shifting into 4 wheel drive it could be stuck in 4wd and this would cause cv joints to break, if u have access to lift get all tires in air and try2 vs 4 drive and see if tires turn if not lift front tires off ground tires should turn freelyin 2wd, as u turn tires listen to wheel bearing and shaft noises for grinding clunking indicating bad parts, simple tricks that may help u find problems for cheap good luck!!

I had the same problem that based on interner research is common for Fords trcuks/suvs. The common problem fro rear humming "rubbing"sound might be the rear wheel bearings/seal. These will need to be replaced as it will progressivly get worse and the noise louder and eventually the bearings can sieze. I would hesitate to take to a ford dealer if I were you as it can run $500-900. Take to mechanic that knows how to replace wheel bearings and seals. My mechanic replaced them for about $150. and the bearing and seals are around $40. A good way to test this is to raise the wheel were you can freely spin by hand...if does not spin or there is a lot of friction then it might be the wheel bearings.
Good Luck

cv joints maybe ball joints maybe transfer case but i dont think it is