why is my Ford Explorer Fifth Generation (2011-2019) making a strange noise when accelerating

Ford Explorer Fifth Generation (2011-2019)

Error Codes

2-4 hours

Time

medium

Difficulty

medium

Severity

3 min read

558 words

Problem Statement

Learn how to diagnose and fix strange noise during acceleration in Ford Explorer (2011-2019). Step-by-step guide with diagnostic procedures and repair instructions.

Affected Component

Transmission

Estimated Time

2-4 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect the battery before working on electrical systems.
•Allow the engine to cool before opening the radiator or working on engine components.

Symptoms

•Unusual grinding or whining noise when accelerating
•Increased engine vibrations
•Loss of power during acceleration
•Fluctuating RPMs
•Check engine light illuminated

Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify any underlying issues.
2
Inspect the engine bay for any loose or damaged components, such as belts or hoses.
3
Check the transmission fluid level and condition; look for any signs of contamination.
4
Perform a visual inspection of the exhaust system for leaks or damage that might cause noise.
5
Test drive the vehicle to replicate the noise while monitoring RPM and power delivery.
6
Listen for noise changes during deceleration and at idle to differentiate between engine and transmission issues.

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
•Socket set
•Ratchet and torque wrench
•Drain pan
•Funnel

Parts Required

•Serpentine belt (if worn)
•Transmission fluid
•Transmission filter and gasket
•Exhaust tape or replacement sections (if needed)

Related Faults

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Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify any underlying issues.
2
Inspect the engine bay for any loose or damaged components, such as belts or hoses.
3
Check the transmission fluid level and condition; look for any signs of contamination.
4
Perform a visual inspection of the exhaust system for leaks or damage that might cause noise.
5
Test drive the vehicle to replicate the noise while monitoring RPM and power delivery.
6
Listen for noise changes during deceleration and at idle to differentiate between engine and transmission issues.

Solution

1. Preparation

Gather necessary tools and parts.
Ensure the vehicle is parked on a level surface and engage the parking brake.
Disconnect the battery to avoid electrical issues while working.

2. Inspect and Replace Belts

Inspect: Check the serpentine belt and timing belt for wear or fraying.
Replace: If any damage is found:
1. Loosen the tensioner using a socket and ratchet.
2. Remove the old belt and install the new one, following the belt routing guide.
3. Re-tighten the tensioner to the manufacturer’s specified torque.

3. Transmission Fluid Change

Drain Fluid:
1. Place a drain pan under the transmission pan.
2. Remove the transmission pan bolts and carefully drain the old fluid.
Replace Filter:
1. Remove the old filter and replace it with a new one.
2. Install a new gasket on the transmission pan.
Add New Fluid:
1. Using a funnel, add the recommended type and amount of transmission fluid.
2. Check fluid levels with the dipstick and ensure it is within the specified range.

4. Exhaust System Repair

Inspect: Check for rust, holes, or loose connections in the exhaust system.
Repair or Replace:
1. If any leaks are detected, use exhaust tape or sealant for minor repairs.
2. For significant damage, remove and replace the affected exhaust sections.

5. Reconnect Battery and Test

Reconnect the battery terminals.
Start the engine and listen for any remaining noises during acceleration.
Conduct a test drive to ensure the issue is resolved.