- Worn brake pads: Worn brake pads can cause a knocking noise when you press firmly on the brakes. The brake pads are responsible for creating friction with the brake rotors, which slows down the vehicle. When the brake pads are worn, they can no longer create enough friction, which can cause the brake rotors to vibrate. This vibration can then cause a knocking noise.
- Loose caliper bolts: Loose caliper bolts can also cause a knocking noise when you press firmly on the brakes. The caliper bolts are responsible for holding the brake caliper in place. If the caliper bolts are loose, the brake caliper can move around, which can cause the brake pads to vibrate. This vibration can then cause a knocking noise.
Knocking noise when making a left turn:
- Worn ball joints: Worn ball joints can cause a knocking noise when you make a left turn. The ball joints are responsible for connecting the control arms to the steering knuckles. When the ball joints are worn, they can allow the control arms to move around, which can cause the steering knuckles to vibrate. This vibration can then cause a knocking noise.
- Loose tie rod ends: Loose tie rod ends can also cause a knocking noise when you make a left turn. The tie rod ends are responsible for connecting the steering rack to the steering knuckles. When the tie rod ends are loose, they can allow the steering knuckles to move around, which can cause the steering rack to vibrate. This vibration can then cause a knocking noise.
