how to know if my struts are bad on Ford F-150 13th Generation (2015-2020)

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

Error Codes

2-4 hours

Time

medium

Difficulty

medium

Severity

3 min read

529 words

Problem Statement

Learn how to identify and replace bad struts on your 2015-2020 Ford F-150. Step-by-step guide with symptoms, diagnostic steps, and repair instructions.

Affected Component

Suspension

Estimated Time

2-4 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Always use jack stands when working under a vehicle.
•Ensure the vehicle is on a level surface and the parking brake is engaged before lifting.

Symptoms

•Excessive bouncing or swaying while driving, especially on uneven surfaces
•Difficulty controlling the vehicle during turns
•Uneven tire wear, particularly on the inner or outer edges
•Visible oil leakage on the struts
•Noise such as clunking or rattling sounds when driving over bumps
•Vehicle sits lower than normal, indicating potential sagging

Diagnostic Steps

1
Perform a bounce test by pushing down on each corner of the vehicle; observe how many times it bounces before settling.
2
Inspect the struts visually for any signs of oil leakage or physical damage.
3
Check for uneven tire wear patterns that may indicate alignment issues related to bad struts.
4
Listen for noise while driving over bumps or rough surfaces.
5
Measure the vehicle's ride height compared to manufacturer specifications to detect sagging.
6
Use a jack to lift the vehicle, then check for play in the strut assembly by wiggling the top and bottom of the strut.

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

•Floor jack
•Jack stands
•Socket set
•Wrench set
•Torque wrench

Parts Required

•Replacement struts
•New strut mount (if necessary)
•Brake line clips (if damaged)

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Symptoms

•Excessive bouncing or swaying while driving, especially on uneven surfaces

•Difficulty controlling the vehicle during turns

•Uneven tire wear, particularly on the inner or outer edges

•Visible oil leakage on the struts

•Noise such as clunking or rattling sounds when driving over bumps

•Vehicle sits lower than normal, indicating potential sagging

Diagnostic Steps

1
Perform a bounce test by pushing down on each corner of the vehicle; observe how many times it bounces before settling.
2
Inspect the struts visually for any signs of oil leakage or physical damage.
3
Check for uneven tire wear patterns that may indicate alignment issues related to bad struts.
4
Listen for noise while driving over bumps or rough surfaces.
5
Measure the vehicle's ride height compared to manufacturer specifications to detect sagging.
6
Use a jack to lift the vehicle, then check for play in the strut assembly by wiggling the top and bottom of the strut.

Solution

1. Preparation

Gather necessary tools and parts.
Park the vehicle on a flat surface and engage the parking brake.
Wear safety goggles and gloves.

2. Lift the Vehicle

Tools Required: Floor jack, jack stands
Use a floor jack to lift the front or rear of the vehicle (depending on which struts need inspection).
Secure the vehicle with jack stands to ensure stability.

3. Remove the Strut Assembly

Tools Required: Socket set, wrench, torque wrench
Remove the wheel to gain access to the strut assembly.
Disconnect the brake line and any sensors attached to the strut.
Unbolt the strut from the lower control arm and the upper strut mount.
Carefully remove the strut assembly from the vehicle.

4. Inspect and Replace

Check the strut for any signs of wear, damage, or leaking fluid.
If replacement is necessary, install the new strut by reversing the removal process.
Ensure all bolts are torqued to manufacturer specifications.

5. Reassemble and Test

Reattach the wheel and lower the vehicle.
Perform a test drive to check for improved handling and ride quality.