When there are any issues with your brakes it is best to take your car in to a certified mechanic. Brakes can knock for several reasons, including the calipers, brake pads, and bearings.
The speed of the motor vehicle is gently slowed down. The more aggressive the brakes are applied the faster the vehicle slows down eventually coming to a full stop.
apply your brakes gently while accelerating at the same time
Gently pumping your brakes.
you should gently press the brake pedal and gently press the gas pedal, the increase friction will dry the brakes.....
Pump the brakes gently
Gently pumping your brakes.
apply your brakes gently as you accelerate
apply your brakes gently as you accelerate
While driving, apply the brakes gently for a short distance, as you maintain your speed.
Check ABS system.
Gently pump the brake pedal.
Take you foot off the brakes. This may restore some traction so you can steer or apply the brakes more gently.