why does my Ford Explorer Sixth Generation (2020-present) make a loud noise when accelerating

Ford Explorer Sixth Generation (2020-present)

Error Codes

2-4 hours

Time

medium

Difficulty

medium

Severity

3 min read

511 words

Problem Statement

Learn how to diagnose and fix loud noise during acceleration in the 2020 Ford Explorer. Step-by-step guide with diagnostic procedures and repair instructions.

Affected Component

Exhaust System

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 inspecting the exhaust system to prevent burns.

Symptoms

•Loud noise or rumbling sound when accelerating
•Possible vibration felt in the cabin or steering wheel
•Decreased engine performance or responsiveness
•Check engine light may be illuminated
•Unusual exhaust smell or increased emissions

Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to check for any stored trouble codes.
2
Inspect the engine bay for any loose or damaged components, including exhaust parts.
3
Check the exhaust system for leaks or damage, especially around the manifold and muffler.
4
Test the engine mounts for wear or failure that could transmit noise.
5
Listen for noise while revving the engine in neutral to isolate the source of the sound.
6
Inspect the air intake system for any obstructions or 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
•Torque wrench
•Pry bar
•Jack and jack stands

Parts Required

•Exhaust gaskets
•Exhaust pipes or muffler (if damaged)
•Engine mounts (if needed)

Related Faults

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Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to check for any stored trouble codes.
2
Inspect the engine bay for any loose or damaged components, including exhaust parts.
3
Check the exhaust system for leaks or damage, especially around the manifold and muffler.
4
Test the engine mounts for wear or failure that could transmit noise.
5
Listen for noise while revving the engine in neutral to isolate the source of the sound.
6
Inspect the air intake system for any obstructions or issues.

Solution

1. Preparation

Gather all necessary tools and parts.
Park the vehicle on a level surface and engage the parking brake.
Disconnect the battery to prevent electrical issues during repairs.

2. Inspect and Repair Exhaust System

Sub-steps:
1. Raise the vehicle using a jack and secure it with jack stands.
2. Visually inspect the entire exhaust system for leaks, holes, or loose connections.
3. Tighten any loose bolts or clamps found on the exhaust system.
4. If damage is found, replace the affected exhaust components (e.g., gaskets, pipes, or muffler).
5. Recheck all connections for tightness and ensure no parts are contacting the chassis.

3. Check Engine Mounts

Sub-steps:
1. Inspect the engine mounts visually for cracks or separation.
2. Use a pry bar to gently test the mounts by applying pressure to the engine; excessive movement indicates a failed mount.
3. If mounts are found to be defective, remove and replace them with OEM parts, ensuring proper torque specifications are followed during installation.

4. Reconnect Battery and Test Drive

Sub-steps:
1. Reconnect the battery terminals.
2. Start the engine and listen for any remaining noises.
3. Take the vehicle for a test drive to confirm the noise is resolved.