The Grinding noise in the passenger rear of a 2002 Explorer is most likely either a bad wheel bearing, or a brake problem. Check the brakes then the bearing to find the cause.
Bearings, cv shaft, or brakes.
The rear of a Ford Explorer may have a grinding noise when driving, because the muffler may have came loose. The u joint may also be loose and cause a grinding noise.
brake pads shot
A grinding noise form a wheel is usually caused by a bad wheel bearing.
Brakes
I have a 1999 Ford Explorer and I was told about a grinding noise before I bought it. He told me that it was because it needs a new wheel baring. * If the vehicle is standing in place and the wheel is turned and there is a noise it could mean you need to add power steering fluid to the unit.
Humming noise on the front passenger side of a 1997 Ford Explorer XLT may be due to a bad tire. Try to jack up the tire and spin it by hand to see if the noise is there.
wheel bearing?
The clutch assemble is shot...
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The grinding noise you hear are your shocks and struts. If you experience bouncy while you are driving, as well, you should have them changed.
it can be a couple of things such as hubs,driveshaft,u joints or fluid levels