how to fix Ford F-150 13th Generation (2015-2020) rear suspension problems

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

Error Codes

2-4 hours

Time

medium

Difficulty

medium

Severity

3 min read

507 words

Problem Statement

Learn how to diagnose and fix rear suspension problems in Ford F-150 13th Generation (2015-2020). Step-by-step guide with symptoms, 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 the vehicle.
•Disconnect the battery before working on electronic suspension systems to avoid shorts or shocks.

Symptoms

•Sagging rear end when the vehicle is loaded
•Clunking or rattling noises coming from the rear suspension
•Uneven tire wear on rear tires
•Poor ride quality and handling
•Warning lights on the dashboard related to suspension

Diagnostic Steps

1
Inspect the rear suspension components visually for damage or wear, including shocks, springs, and bushings.
2
Check for any OBD-II error codes that may relate to suspension systems.
3
Measure the ride height of the rear suspension to assess sagging.
4
Perform a bounce test by pushing down on the rear of the vehicle to check for shock absorber functionality.
5
Examine the rear axle alignment and tire pressures.

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
•Wrench set
•Floor jack
•Jack stands

Parts Required

•New shock absorbers
•New rear springs (if necessary)
•Any additional mounting hardware (if needed)

Related Faults

Share this solution

Comments

No comments yet

Be the first to share your thoughts

Back to Generation

Diagnostic Steps

1
Inspect the rear suspension components visually for damage or wear, including shocks, springs, and bushings.
2
Check for any OBD-II error codes that may relate to suspension systems.
3
Measure the ride height of the rear suspension to assess sagging.
4
Perform a bounce test by pushing down on the rear of the vehicle to check for shock absorber functionality.
5
Examine the rear axle alignment and tire pressures.

Solution

1. Preparation

Gather tools and parts needed for the repair.
Ensure the vehicle is parked on a level surface and secured with wheel chocks.
Disconnect the battery to prevent any electrical issues during repair.

2. Remove the Old Components

Tools Required: Socket set, wrench set, jack stands, floor jack.
Lift the rear of the vehicle using a floor jack and secure it with jack stands.
Remove the wheels to access the suspension components.
Unbolt and remove the old shock absorbers using the socket set.
Detach the rear springs by removing any retaining clips or bolts.

3. Inspect and Replace Components

Inspect the shock mounts and spring seats for wear; replace if damaged.
Install new shock absorbers by positioning them in place and tightening bolts to manufacturer specifications (typically 30-40 ft-lbs).
If the springs are sagging or damaged, replace them with new ones. Ensure they are seated correctly in their mounts.

4. Reassemble and Lower the Vehicle

Reinstall the wheels and torque lug nuts to the manufacturer's specifications (typically 100-150 ft-lbs).
Carefully lower the vehicle to the ground.
Reconnect the battery.