why is my Toyota Highlander shaking when I brake

Solution

1. Preparation

• Tools Required: Jack, jack stands, wheel chocks, lug wrench, dial indicator, torque wrench.
• Ensure the vehicle is on a flat surface and secure it with wheel chocks.
• Disconnect the battery if you're working on electronic components.

2. Remove Wheels

• Loosen lug nuts with a lug wrench while the vehicle is still on the ground.
• Raise the vehicle with a jack and secure it with jack stands.
• Remove the wheels to access the brake components.

3. Inspect and Replace Brake Rotors (if warped)

• Sub-steps:
  • Use a dial indicator to check rotor runout; replace if beyond specifications (usually 0.003 inches).
  • Remove caliper bolts and lift the caliper away from the rotor.
  • Secure the caliper with a wire or bungee cord to avoid stress on the brake line.
  • Remove the rotor retaining screws (if applicable) and slide off the rotor.
  • Install new rotors, ensuring they are properly seated and secured.

4. Inspect and Replace Brake Pads (if worn)

• Sub-steps:
  • Remove the old brake pads from the caliper bracket.
  • Inspect the caliper piston for damage or leaks; replace if necessary.
  • Lubricate the caliper bracket sliding points with brake grease.
  • Install new brake pads, ensuring they are correctly positioned.

5. Reassemble and Torque Components

• Sub-steps:
  • Reattach the caliper and torque bolts to the manufacturer’s specifications (typically around 20-30 ft-lbs).
  • Reinstall the wheel and hand-tighten lug nuts.
  • Lower the vehicle and torque the lug nuts to the manufacturer's specification (usually 75-85 ft-lbs).

6. Test Drive

• Take the vehicle for a test drive to ensure proper brake function and check for any remaining vibrations.