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Home/Cars/Ford/Mustang/S550 (2015-2023)/my Ford Mustang S550 (2015-2023) has pulsating brakes, what should I do

my Ford Mustang S550 (2015-2023) has pulsating brakes, what should I do

Ford Mustang S550 (2015-2023)

Severity: highDifficulty: medium2-4 hours
3 min read
562 words

⚠️ Safety Warning

This issue requires immediate attention. If you are not experienced with automotive repairs, consult a professional mechanic. Working on critical systems can be dangerous.

Problem Statement

Learn how to diagnose and fix pulsating brakes on Ford Mustang S550 (2015-2023). Step-by-step guide with diagnostic procedures and repair instructions.

Component
Brakes
Repair Time
2-4 hours

Safety Warnings

  • ⚠Always ensure the vehicle is securely lifted and supported before working underneath.
  • ⚠Allow brakes to cool before handling components to avoid burns.

Symptoms

  • •Pulsation felt through the brake pedal when braking
  • •Uneven wear on brake pads
  • •Vibration in the steering wheel when braking
  • •Increased stopping distance
  • •Noisy brakes (squealing or grinding) when applied

Diagnostic Steps

  1. 1Inspect brake pads for uneven wear and thickness.
  2. 2Check the brake rotors for warping or scoring.
  3. 3Measure the thickness of the brake rotors with a micrometer.
  4. 4Test drive the vehicle to confirm the pulsation occurs under braking.
  5. 5Inspect the brake calipers for proper operation and sticking.
  6. 6Check for any air in the brake lines that may affect brake performance.

Solution

Solution

1. Preparation

  • Tools Required:
    • Jack and jack stands
    • Lug wrench
    • Brake cleaner
    • Torque wrench
    • Micrometer
    • C-clamp or brake caliper tool
  • Safely lift the vehicle and remove the wheels using the lug wrench.

2. Inspect and Remove Brake Components

  • Remove the brake caliper bolts and slide the caliper off the rotor.
    • Sub-steps:
      • Use the correct size socket for caliper bolts.
      • Suspend the caliper using a bungee cord to avoid stress on the brake line.
  • Remove the brake pads from the caliper bracket.

3. Inspect and Replace Rotors

  • Check the brake rotors for warping or excessive wear.
    • Sub-steps:
      • Use a micrometer to measure rotor thickness.
      • If the rotor is below the minimum thickness specification or warped, remove it.
  • If replacing rotors, install new rotors ensuring they are clean and free from contaminants.
    • Torque Specification: Follow the manufacturer’s guidelines for rotor bolt torque.

4. Install New Brake Pads

  • Place new brake pads into the caliper bracket.
    • Sub-steps:
      • Apply brake grease to the backing of the pads (not on the friction material).
      • Ensure the pads are seated properly in the bracket.

5. Reinstall Caliper

  • Reposition the caliper over the new pads and rotor.
    • Sub-steps:
      • Tighten caliper bolts to manufacturer specifications.
      • Ensure caliper slides freely without binding.

6. Reassemble and Test

  • Reinstall the wheels and lower the vehicle to the ground.
  • Tighten wheel lug nuts to proper torque specification.
  • Pump the brake pedal to reset the brake pads against the rotors.
  • Conduct a test drive to ensure the pulsating issue is resolved.

Verification

After completing the repair, verify that the issue has been resolved:

  • Test the affected component to ensure it functions correctly
  • Check for any error codes or warning lights
  • Monitor the vehicle for a few days to ensure the issue does not recur

Prevention Tips

To prevent this issue from occurring again:

  • •Follow the manufacturer's recommended maintenance schedule
  • •Address warning signs early before they develop into major issues
  • •Use quality parts and fluids recommended for your vehicle
  • •Keep detailed records of all repairs and maintenance

Tools & Equipment Required

  • Jack and jack stands
  • Lug wrench
  • Brake cleaner
  • Torque wrench
  • Micrometer
  • C-clamp or brake caliper tool

Parts Required

  • New brake pads
  • New brake rotors (if necessary)

Additional Information

Component

Brakes

Repair Time

2-4 hours

Difficulty

medium

Severity

high

Tools

6 items

Parts

2 items

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