High frequency scream
The high-frequency sound sounds sharp, and when the vibration frequency of the
brake disc and the
brake pads are the same, they resonate to produce a scream.
Check the caliper: whether the guide rail is lubricated smoothly and whether the piston oil seal is damaged.
Check whether all anti-noise clips and brake pads are suitable and installed correctly.
Check whether the brake pads are too smooth and are not overused.
Low frequency howl
Commonly called caliper noise
Caused by the vibration of the caliper assembly
It may also be caused by the vibration of the suspension system
The new car's caliper or suspension system has a slight vibration
Early morning sensitivity, such as early morning in winter, is especially common
Check the calipers, suspension system and bushings
Dull echo
Generally produced when the pedal is slack
Easy to cause the steering wheel to shake
New models are prone to such problems
Caused by the difference in the thickness of the brake disc
Maintenance of the ball cage connector
Check the degree of wear of the
brake pads
