why does my Ford Explorer Fifth Generation (2011-2019) have a loud noise when accelerating

Ford Explorer Fifth Generation (2011-2019)

Error Codes

2-4 hours

Time

medium

Difficulty

medium

Severity

3 min read

579 words

Problem Statement

Learn how to diagnose and fix loud noise during acceleration in Ford Explorer (2011-2019). 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 avoid burns.

Symptoms

•Loud noise that increases with acceleration
•Possible vibration felt through the cabin
•Decreased acceleration performance
•Check engine light illuminated
•Unusual exhaust emissions (black or white smoke)

Diagnostic Steps

1
Inspect the exhaust system for leaks or damage, particularly around joints and mufflers.
2
Scan for error codes using an OBD-II scanner to identify any related engine issues.
3
Check the engine mounts for wear or damage that could cause increased noise and vibration.
4
Inspect the air intake system for obstructions or leaks that may affect engine performance.
5
Test drive the vehicle to replicate the noise and determine if it is consistent at various speeds and loads.

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
•Jack and jack stands
•Socket set
•Torque wrench
•Inspection mirror

Parts Required

•Exhaust repair tape or sealant
•Replacement exhaust components (if damaged)

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Diagnostic Steps

1
Inspect the exhaust system for leaks or damage, particularly around joints and mufflers.
2
Scan for error codes using an OBD-II scanner to identify any related engine issues.
3
Check the engine mounts for wear or damage that could cause increased noise and vibration.
4
Inspect the air intake system for obstructions or leaks that may affect engine performance.
5
Test drive the vehicle to replicate the noise and determine if it is consistent at various speeds and loads.

Solution

1. Preparation

Tools Required: OBD-II scanner, jack and jack stands, socket set, torque wrench, inspection mirror.
Ensure the vehicle is parked on a level surface and the engine is off.
Disconnect the battery to prevent electrical issues during inspection.

2. Inspect Exhaust System

Sub-steps:
1. Raise the vehicle using a jack and securely place it on jack stands.
2. Visually inspect the entire exhaust system, including the manifold, catalytic converter, and muffler, for signs of rust, cracks, or holes.
3. Use the inspection mirror to check hard-to-see areas.
4. If a leak is found, mark the location for repair or replacement.

3. Repair or Replace Damaged Parts

Sub-steps:
1. For minor leaks, use exhaust repair tape or sealant to cover small holes.
2. If significant damage is found, remove the affected section of the exhaust using a socket set and replace it with a new part.
3. Reinstall any components that were removed and ensure all connections are tight.
4. Torque bolts to manufacturer specifications (consult service manual for exact values).

4. Check Engine Components

Sub-steps:
1. Inspect engine mounts for cracks or wear; replace if damaged.
2. Tighten any loose bolts on the engine and transmission to reduce vibration.
3. Check drive belts for wear and replace if they are frayed or cracked.

5. Reassemble and Test

Sub-steps:
1. Reconnect the battery and clear any error codes using the OBD-II scanner.
2. Start the engine and listen for any remaining noises.
3. Take the vehicle for a test drive to ensure the issue is resolved.