I now have this rotating grinding sound of sort

2002 FORD RANGER
77,000 MILES • 4 CYL • FWD • MANUAL
Avatar
RAMSEYEARL
  • MEMBER
  • 2 POSTS
A friend of mine changed out my brakes and rotors for me.... He's no "professional," but the art of a mechanic is bred into his family. After changing both the brakes and rotors, I now have this rotating grinding sound of sort. Is especially noticeable when turning the wheels while moving. My friend said he noticed a roughness to the inside of the new rotors where the bearing (I guess) meets. In the old rotors, this roughness wasn't present. I was hoping, with this little information, if this grinding is a result of this rotor... defect? If not, what is it?

I apologize for my lack of detail....

Earl
Jan 6, 2010 at 11:36 PM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.
Advertisement
Avatar
SERVICE WRITER
  • AUTOMOTIVE REPAIR CONTRIBUTOR
  • 9,123 POSTS
With all due respect, mechanical knowledge is not genetically passed. Mechanical ability perhaps... There are 2 different rotors that are called for on this truck. With or without front wheel abs. Was the identical one used?


https://images.2carpros.com/forum/automotive_pictures/30961_Image2_2.jpg

What quality ones were used. Cheap ones are not made as well. There are bearings inside the rotors that need to be meticulously cleaned and repacked with clean grease. They need to be looked at when the are clean to see if they are still good. Any sort of contaminants can cause problems. The axle nut can not be overtightened. If there was a roughness issue on the replacement rotors, they should not have been used. IF the roughness was on the race that the bearing ride on, then I would plan on new bearings now. I would suggest Raising the front end and spinning the wheels be hand to see which wheel is making the noise. They need to be pulled back apart and inspected. It is possible the dust sheild may have been bent and is touching the rotor...easy to do. When I am doing this kind of job, I always roll the wheel around before I put it back on the ground to eliminate having to bring it back in. Hopefully your friend is okay with this. A shop would have to do this at no charge, but of course it would have cost more to have had this job done to begin with.
Apr 12, 2021 at 6:58 PM
Advertisement
Avatar
RAMSEYEARL
  • MEMBER
  • 2 POSTS
Thank you for your reply. I went back and disassembled everything, and inspected it. It turns out the rotors are rubbing against the dust shield.

Thank you again,

Earl
Apr 12, 2021 at 6:58 PM
Avatar
SERVICE WRITER
  • AUTOMOTIVE REPAIR CONTRIBUTOR
  • 9,123 POSTS
Glad it worked out that way, inexpensive repair.
It's a bittersweet repair.
Apr 12, 2021 at 6:58 PM