why does my Ford Explorer make a loud clunk when I shift gears

Ford Explorer Fifth Generation (2011-2019)

Error Codes

2-4 hours

Time

medium

Difficulty

high

Severity

3 min read

588 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 a loud clunk when shifting gears in your Ford Explorer. Step-by-step guide with symptoms, diagnostic steps, and repair instructions.

Affected Component

Transmission

Estimated Time

2-4 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Always disconnect the battery before working on electrical systems.
•Allow the vehicle to cool before servicing the transmission.

Symptoms

•Loud clunking noise during gear shifts
•Delayed engagement when shifting from park to drive or reverse
•Vibration felt through the chassis when shifting
•Fluid leakage under the vehicle
•Unusual noises while driving at low speeds

Diagnostic Steps

1
Inspect the transmission fluid level and condition.
2
Scan for any trouble codes using an OBD-II scanner.
3
Check the transmission mount for cracks or wear.
4
Inspect the driveshaft and universal joints for play or damage.
5
Examine the engine and transmission mounts for signs of wear or failure.
6
Test the operation of the shifter linkage for proper adjustment and function.

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

•OBD-II scanner
•Transmission fluid pump
•Socket set
•Wrench set
•Floor jack
•Jack stands
•Torque wrench
•Screwdriver

Parts Required

•Transmission fluid
•Transmission filter (if necessary)
•Transmission mount
•Universal joint (if necessary)

Related Faults

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Diagnostic Steps

1
Inspect the transmission fluid level and condition.
2
Scan for any trouble codes using an OBD-II scanner.
3
Check the transmission mount for cracks or wear.
4
Inspect the driveshaft and universal joints for play or damage.
5
Examine the engine and transmission mounts for signs of wear or failure.
6
Test the operation of the shifter linkage for proper adjustment and function.

Solution

1. Preparation

Gather all necessary tools and parts.
Disconnect the negative battery terminal to ensure safety.

2. Check and Replace Transmission Fluid

Tools Required: Transmission fluid pump, funnel, torque wrench.
Remove the transmission fluid dipstick and check fluid level and condition (should be red and not burnt).
If low, add the appropriate type of transmission fluid (refer to the owner's manual).
If the fluid is dirty or burnt, drain and replace it:
1. Place a drain pan under the transmission.
2. Remove the transmission pan bolts using a socket set.
3. Allow old fluid to drain completely.
4. Replace the transmission filter if equipped, then reinstall the pan with a new gasket.
5. Refill with new fluid using a funnel.

3. Replace Transmission Mount

Tools Required: Socket set, wrench set, floor jack, jack stands.
Raise the vehicle and secure it on jack stands.
Locate the transmission mount and inspect it for damage.
To replace the mount:
1. Support the transmission with a floor jack.
2. Remove the bolts securing the mount to the transmission and chassis.
3. Replace with a new mount and torque the bolts to the manufacturer's specifications.

4. Inspect Driveshaft and Universal Joints

Tools Required: Socket set, pry bar.
Inspect the driveshaft for any visible damage or play.
Check the universal joints for smooth operation:
1. If any play or damage is found, replace the affected universal joint.
2. Ensure all bolts are properly torqued when reinstalling the driveshaft.

5. Check Shifter Linkage

Tools Required: Socket set, screwdriver.
Inspect the shifter linkage for proper adjustment and function.
If adjustment is needed, refer to the service manual for specific procedures.