why does my Ford Explorer make a loud noise when I accelerate

Ford Explorer Sixth Generation (2020-present)

Error Codes

2-4 hours

Time

medium

Difficulty

medium

Severity

3 min read

474 words

Problem Statement

Discover how to diagnose and fix loud noise during acceleration in Ford Explorer. Step-by-step guide with symptoms, diagnostic steps, and repair instructions.

Affected Component

Exhaust System

Estimated Time

2-4 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Allow the engine to cool before working on the exhaust system
•Ensure the vehicle is securely raised on jack stands before crawling underneath

Symptoms

•Loud noise that increases with acceleration
•Possible vibration felt in the cabin
•Check engine light illuminated (if applicable)
•Decreased acceleration performance
•Rumbling or rattling sound from under the vehicle

Diagnostic Steps

1
Start the vehicle and listen for the location of the noise (engine bay, undercarriage, etc.)
2
Inspect the exhaust system for any visible damage or loose components
3
Check engine mounts for wear or failure that could be causing excessive movement
4
Use an OBD-II scanner to check for any trouble codes related to the engine
5
Inspect the air intake system for any obstructions or damages
6
Examine the transmission for any unusual noises or leaks

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
•Jack and jack stands
•Screwdriver set

Parts Required

•Exhaust components (muffler, pipes, gaskets as needed)
•Engine mounts (if found faulty)

Related Faults

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Diagnostic Steps

1
Start the vehicle and listen for the location of the noise (engine bay, undercarriage, etc.)
2
Inspect the exhaust system for any visible damage or loose components
3
Check engine mounts for wear or failure that could be causing excessive movement
4
Use an OBD-II scanner to check for any trouble codes related to the engine
5
Inspect the air intake system for any obstructions or damages
6
Examine the transmission for any unusual noises or leaks

Solution

1. Preparation

Gather necessary tools and parts.
Park the vehicle on a level surface and engage the parking brake.
Disconnect the negative battery terminal for electrical safety.

2. Inspect and Repair Exhaust System

Sub-steps:
1. Raise the vehicle using a jack and secure with jack stands.
2. Visually inspect the entire exhaust system for holes, cracks, or missing hangers.
3. If any components are damaged, replace the affected parts (e.g., muffler, catalytic converter, pipes).
4. Tighten any loose clamps or connections.

3. Check Engine Mounts

Sub-steps:
1. Locate the engine mounts (usually near the front and rear of the engine).
2. Inspect for cracks or any signs of wear.
3. If mounts are damaged, unbolt the old mounts and replace them with new ones.
4. Torque the new mounts to the manufacturer's specifications.

4. Test Drive

Sub-steps:
1. Reconnect the negative battery terminal.
2. Start the vehicle and listen for any remaining noises during idle and acceleration.
3. Take the vehicle for a short test drive to confirm noise is eliminated.