why does my Ford Mustang S550 (2015-2023) shake when I brake hard

Solution

1. Preparation

• Gather necessary tools and parts.
• Ensure the vehicle is parked on a level surface and the parking brake is engaged.
• Wear safety glasses and gloves.

2. Remove Wheel

• Loosen lug nuts slightly while the vehicle is on the ground.
• Raise the vehicle with a jack and secure it with jack stands.
• Remove the lug nuts completely and take off the wheel.

3. Inspect Brake Components

• Brake Rotor Inspection:

  • Use a dial indicator to measure rotor runout; replace if warped beyond specifications (usually more than 0.002 inches).
  • Clean rotors with brake cleaner if they appear dirty.

• Brake Pad Inspection:

  • Remove the caliper by unbolting it from the bracket.
  • Check pads for thickness; replace if less than 3mm.
  • Inspect for uneven wear patterns and ensure they are correctly seated.

4. Replace Brake Rotors and Pads (if necessary)

• Rotor Replacement:

  • Remove the old rotor from the hub.
  • Install the new rotor and torque the retaining screws to the manufacturer's specifications.

• Pad Replacement:

  • Install new brake pads into the caliper bracket.
  • Reattach the caliper and torque the caliper bolts to specification.

5. Reassemble Wheel and Test

• Reinstall the wheel and hand-tighten the lug nuts.
• Lower the vehicle and torque the lug nuts to the specified value (usually around 100 lb-ft).
• Test drive the vehicle to assess brake performance and check for any remaining vibrations.