why does my Ford Explorer 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

482 words

Problem Statement

Discover how to diagnose and fix loud noise during acceleration in 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 components.
•Allow the engine to cool before inspecting the exhaust system.

Symptoms

•Loud noise that increases with acceleration
•Possible vibrations felt through the chassis
•Whistling or hissing sounds accompanying the noise
•Decreased acceleration performance
•Check engine light may be illuminated

Diagnostic Steps

1
Inspect the exhaust system for leaks or damage.
2
Check for loose or damaged heat shields.
3
Scan the vehicle’s computer for error codes using an OBD-II scanner.
4
Inspect the air intake system for obstructions or leaks.
5
Check the engine mounts for wear or damage.
6
Test drive the vehicle while listening for changes in noise under different acceleration conditions.

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
•Wrench
•Screwdriver set
•Vacuum cleaner
•Flashlight
•Jack
•Jack stands

Parts Required

•Exhaust gaskets (if needed)
•Air filter (if dirty)
•Engine mounts (if worn)

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Diagnostic Steps

1
Inspect the exhaust system for leaks or damage.
2
Check for loose or damaged heat shields.
3
Scan the vehicle’s computer for error codes using an OBD-II scanner.
4
Inspect the air intake system for obstructions or leaks.
5
Check the engine mounts for wear or damage.
6
Test drive the vehicle while listening for changes in noise under different acceleration conditions.

Solution

1. Preparation

Gather all necessary tools and parts.
Ensure the vehicle is parked on a level surface and the engine is off.
Disconnect the battery to prevent electrical shorts.

2. Inspect Exhaust System

Tools Required: Socket set, flashlight.
Instructions:
1. Visually inspect the exhaust pipes, muffler, and catalytic converter for any signs of rust, holes, or damage.
2. Use a flashlight to check for exhaust leaks, particularly at joints and welds.
3. If leaks are found, proceed to replace the damaged components.

3. Check Heat Shields

Tools Required: Socket set, wrench.
Instructions:
1. Examine the heat shields around the exhaust system for looseness or damage.
2. Tighten any loose bolts or replace the heat shield if it is damaged.

4. Inspect Air Intake System

Tools Required: Screwdriver set, vacuum cleaner.
Instructions:
1. Remove the air intake duct and inspect for any cracks or loose connections.
2. Clean the air filter and replace it if it is excessively dirty.
3. Ensure the intake connections are tight and free of leaks.

5. Check Engine Mounts

Tools Required: Jack, jack stands, socket set.
Instructions:
1. Safely lift the vehicle using a jack and secure it with jack stands.
2. Inspect engine mounts for cracks or excessive wear.
3. Replace any damaged mounts to reduce vibrations and noise.