why is my Ford Explorer making a clunking noise when I accelerate

Ford Explorer Fifth Generation (2011-2019)

Error Codes

3-5 hours

Time

medium

Difficulty

medium

Severity

3 min read

521 words

Problem Statement

Learn how to diagnose and fix clunking noise during acceleration in Ford Explorer. Step-by-step guide with diagnostic procedures and repair instructions.

Affected Component

Drivetrain

Estimated Time

3-5 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect the battery before working on electrical systems.
•Always use jack stands when working under a vehicle.

Symptoms

•Clunking noise when accelerating
•Vibration felt in the steering wheel or floorboard
•Noise may vary with speed or load
•Possible difficulty in shifting gears (if automatic)
•Increased engine RPM without corresponding acceleration

Diagnostic Steps

1
Inspect the drivetrain components visually for any visible damage or wear.
2
Check the transmission fluid level and condition.
3
Listen for the noise while stationary and in gear to determine if it's related to the engine or drivetrain.
4
Test drive the vehicle to reproduce the noise, noting conditions (speed, acceleration).
5
Inspect the engine and transmission mounts for signs of wear or damage.
6
Check for play in the differential and axles by moving them manually.

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
•Pry bar
•Jack stands

Parts Required

•Engine mounts
•Transmission mounts
•CV joints (if necessary)
•Differential fluid (if replenishing)

Related Faults

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Diagnostic Steps

1
Inspect the drivetrain components visually for any visible damage or wear.
2
Check the transmission fluid level and condition.
3
Listen for the noise while stationary and in gear to determine if it's related to the engine or drivetrain.
4
Test drive the vehicle to reproduce the noise, noting conditions (speed, acceleration).
5
Inspect the engine and transmission mounts for signs of wear or damage.
6
Check for play in the differential and axles by moving them manually.

Solution

1. Preparation

Gather necessary tools and parts.
Ensure the vehicle is parked on a flat surface and secure with wheel chocks.
Disconnect the battery to avoid electrical issues during repairs.

2. Inspect and Replace Engine and Transmission Mounts

Tools Required: Socket set, torque wrench, pry bar, jack stands
Sub-steps:
1. Raise the vehicle using a jack and support it with jack stands.
2. Locate the engine and transmission mounts.
3. Use a socket to remove the bolts securing the mounts to the frame and engine/transmission.
4. Carefully lift the engine or transmission slightly using a jack to relieve pressure on the mounts.
5. Remove the old mounts and install new mounts, ensuring they are oriented correctly.
6. Torque the bolts to the manufacturer's specifications.

3. Inspect and Repair Drivetrain Components

Tools Required: Socket set, torque wrench, pry bar
Sub-steps:
1. Inspect the driveshaft and CV joints for any signs of wear or damage.
2. If damaged, remove the driveshaft by loosening the bolts at both ends.
3. Replace any faulty components such as the CV joints or driveshaft.
4. Reinstall the driveshaft and torque the bolts to specifications.

4. Check Differential and Axles

Tools Required: Torque wrench, socket set
Sub-steps:
1. Inspect the differential for leaks or damage.
2. Check the axle bearings for play by moving the axle shaft manually.
3. If necessary, replace any worn axle bearings or seals.
4. Refill the differential with the appropriate fluid if it was low.