What causes a grinding noise in the rear end of a 2003 Chrysler Voyager LX?
Brake linings worn out or wheel bearing is bad
It depends on where the grinding noise is coming from. Most of the time the grinding is coming from the brakes and the brake pads need to be replaced. If they've been grinding for a while, the rotors will need to be resurfaced or replaced. Other possibilities for grinding are worn axle bearings, or a problem with the clutch. If the clutch goes out, there will be a grinding noise when you try to shift…
What causes the power lock to make a grinding noise when locking and unlocking on a Grand Jeep Cherokee?
Depends on the kind of grinding. The brakes may have been messed with, so you'll getting a constant grinding noise. If the noise is audible when you first turn the vehicle on and it not in motion, then you have other problems. If you only hear it while the vehicle is in motion, then you should take it back to the shop where you got your tires replaced.