why does my Ford F-150 shake when I brake at high speeds

Ford F-150 13th Generation (2015-2020)

Error Codes

2-4 hours

Time

medium

Difficulty

high

Severity

3 min read

565 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 brake shaking in Ford F-150. Step-by-step guide with symptoms, diagnostic steps, tools, and repair instructions.

Affected Component

Brakes

Estimated Time

2-4 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Always disconnect the battery before working on the braking system.
•Allow the vehicle to cool down before starting work to avoid burns.

Symptoms

•Shaking or vibration felt in the steering wheel during braking
•Pulsation in the brake pedal
•Uneven wear on brake pads or rotors
•Increased stopping distance
•Possible noise from the brakes (grinding or squeaking)

Diagnostic Steps

1
Inspect brake rotors for warping or uneven wear using a dial indicator.
2
Check brake pad thickness for wear and proper alignment.
3
Examine suspension components (control arms, bushings, tie rods) for wear or damage.
4
Verify wheel balance and alignment.
5
Scan for any error codes related to the braking system using an OBD-II scanner.

Solution

💡 Expert Tip

For complex repairs like this, consider taking photos at each step. This helps if you need to reverse a step or consult with a mechanic. Also, keep all removed parts organized - you may need to reference them during reassembly.

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

•Socket set
•Torque wrench
•Brake rotor puller
•Piston tool
•Brake cleaner
•OBD-II scanner

Parts Required

•New brake rotors
•New brake pads
•Brake fluid

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Diagnostic Steps

1
Inspect brake rotors for warping or uneven wear using a dial indicator.
2
Check brake pad thickness for wear and proper alignment.
3
Examine suspension components (control arms, bushings, tie rods) for wear or damage.
4
Verify wheel balance and alignment.
5
Scan for any error codes related to the braking system using an OBD-II scanner.

Solution

1. Preparation

Gather all necessary tools and parts.
Ensure the vehicle is parked on a flat surface and engage the parking brake.
Disconnect the battery for safety.

2. Inspect and Replace Brake Rotors

Tools Required: Socket set, torque wrench, brake rotor puller (if necessary)
Remove the wheel to access the brake assembly.
Inspect the brake rotors using a dial indicator to check for warping. If warping exceeds specifications (typically 0.002 inches), proceed to replace the rotors.
Remove the caliper bolts and detach the caliper from the rotor. Support the caliper with a wire or bungee to avoid straining the brake line.
Remove the old rotor by unscrewing any retaining screws and sliding it off the hub.
Install the new rotor and secure it with any retaining screws, if applicable.

3. Replace Brake Pads

Tools Required: Piston tool (if needed), brake cleaner, anti-squeal lubricant
Remove the old brake pads from the caliper bracket.
Clean the caliper bracket and install the new pads, applying anti-squeal lubricant as needed.
If the caliper pistons are extended, compress them using a piston tool to allow the new pads to fit.

4. Reassemble and Torque Components

Reattach the caliper to the rotor and tighten the caliper bolts to the manufacturer’s specified torque (usually around 20-30 lb-ft).
Reinstall the wheel and tighten the lug nuts to the manufacturer’s specified torque (typically 100-150 lb-ft).

5. Final Checks

Reconnect the battery.
Bleed the brakes if necessary to ensure proper brake fluid pressure.
Test the brakes by conducting a gentle brake test at low speeds before driving at higher speeds.