If the noise only happens during braking, a rotor probably has a very poor surface finish and needs to be resurfaced so as not to rapidly wear the brake pads. If the rotors are drilled or slotted, the noise is perfectly normal and can be ignored.
If the noise occurs while driving along and gets louder at higher speed iit may be due to damaged wheel bearings.
On some vehicles, removing a brake rotor requires removing serviceable wheel bearings. It is necessary to repack the bearings with grease and adjust the freeplay in the bearings when reassembling. Incorrect freeplay or and dirt or grit introduced into the bearings can cause this problem.
With slip-on "hat type" brake rotors, they can sometimes be fused to the wheel hub by rust. Often-times a mechanic will remove the rotor by beating it into submission with a sledge hammer. This can damage sealed bearing units.
The most common reason for a wheel to make noise when you brake is the brakes needing replacement. When the brake pads or shoes wear down, the metal scrapes against the metal on the drums or rotors, causing noise.
When Brake Rotors Are To Thin To Turn On A Brake Lathe To Have The Minumn Thickness. They Need To Be Replaced.
There can be. Only way to know is have your brakes and rotors inspected.
warped rotors , brake
The brake pads might not be adjusted properly. The brake pads can be too tight and have contact with the rotors.
The compressor may have a locked rotor in the condenser causing the loud roaring noise. Another possibility is low refrigerant.
Rotors are worped most likely
A dodge caravan may be experiencing rear brake noise due to needing new brake pads. This may also be due to worn rotors.
Bearings misassembled, tire nosie, brake noise, noise in axle, noise in transmission, etc.
Sometimes not all the time
usually it will to the brake pads wear a little or it could be your rotors
Your front pads are most likely gone on at least one side-check them.