how can I tell if my Ford F-150 struts are bad

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

Error Codes

2-4 hours

Time

medium

Difficulty

medium

Severity

3 min read

519 words

Problem Statement

Learn how to diagnose and fix bad struts on your Ford F-150. Step-by-step guide with symptoms, diagnostic steps, tools, 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 flat, stable surface before lifting.

Symptoms

•Excessive bouncing after hitting bumps
•Uneven tire wear
•Vehicle swaying or drifting during turns
•Nose diving upon braking
•Increased stopping distance
•Loud noises such as clunking or knocking when driving over bumps

Diagnostic Steps

1
Visually inspect struts for signs of damage, such as leaking fluid or corrosion.
2
Perform a bounce test by pushing down on each corner of the vehicle and observing how quickly it returns to rest.
3
Check for uneven tire wear patterns indicative of alignment issues caused by bad struts.
4
Drive the vehicle at low speed over bumps and listen for unusual noises coming from the suspension.
5
Inspect the vehicle's ride height to see if it appears lower than normal.

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

•Hydraulic jack
•Jack stands
•Socket set
•Ratchet and extensions
•Torque wrench

Parts Required

•New struts (front or rear, depending on which are being serviced)
•Strut mounts (if necessary)

Related Faults

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Diagnostic Steps

1
Visually inspect struts for signs of damage, such as leaking fluid or corrosion.
2
Perform a bounce test by pushing down on each corner of the vehicle and observing how quickly it returns to rest.
3
Check for uneven tire wear patterns indicative of alignment issues caused by bad struts.
4
Drive the vehicle at low speed over bumps and listen for unusual noises coming from the suspension.
5
Inspect the vehicle's ride height to see if it appears lower than normal.

Solution

1. Preparation

Gather necessary tools and parts.
Ensure the vehicle is parked on a level surface and secure it with wheel chocks.
Disconnect the battery if working on electronic components.

2. Lift the Vehicle

Use a hydraulic jack to lift the front or rear of the F-150 as needed.
Secure the vehicle on jack stands for safety.
Remove the wheels to access the struts.

3. Remove the Struts

Loosen and remove the bolts securing the strut to the steering knuckle using a socket set.
Remove the upper strut mounting nuts from the strut tower using a ratchet and socket.
Carefully pull the strut out from its position, noting the orientation for installation.

4. Inspect and Replace

Inspect the strut for signs of wear or damage; if damaged, replace with new struts.
If replacing, install the new strut by reversing the removal steps. Ensure proper alignment.
Torque the upper and lower mounting bolts to the manufacturer's specifications (typically around 30-50 ft-lbs, but refer to the service manual for exact values).

5. Reassemble and Lower the Vehicle

Reinstall the wheels and lower the vehicle from the jack stands.
Tighten lug nuts to manufacturer specifications (usually around 100-150 ft-lbs).
Reconnect the battery if disconnected.

6. Final Check

Verify that all components are secure and that the struts are properly installed.