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

Ford Explorer Fifth Generation (2011-2019)

Error Codes

2-4 hours

Time

medium

Difficulty

high

Severity

3 min read

517 words

⚠️ Safety Warning

This issue requires immediate attention. If you are not experienced with automotive repairs, consult a professional mechanic. Working on critical systems can be dangerous.

Problem Statement

Learn 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

•Ensure the vehicle is on a flat surface and secured with jack stands before working underneath.
•Disconnect the battery before working on electrical systems.
•Allow the engine to cool before inspecting the exhaust system.

Symptoms

•Loud noise that increases with acceleration
•Possible vibrations felt in the cabin
•Decrease in engine performance or power
•Check engine light illuminated (if applicable)
•Unusual smells, such as burning or exhaust fumes

Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify any potential engine issues.
2
Inspect the exhaust system visually for any signs of leaks, cracks, or loose components.
3
Check engine mounts for wear or damage that may cause increased engine movement and noise.
4
Listen for changes in noise while in park and while revving the engine to determine if the noise is engine-related or drivetrain-related.
5
Inspect the drivetrain components such as the transmission and differential for signs of wear or damage.
6
Examine the air intake system for any loose fittings or damaged components that could cause noise.

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

•Jack and jack stands
•OBD-II scanner
•Socket set
•Wrenches
•Screwdriver set

Parts Required

•Exhaust gaskets or clamps (if applicable)
•Engine mounts (if worn)
•Transmission fluid (if low)
•Differential fluid (if low)

Related Faults

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Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify any potential engine issues.
2
Inspect the exhaust system visually for any signs of leaks, cracks, or loose components.
3
Check engine mounts for wear or damage that may cause increased engine movement and noise.
4
Listen for changes in noise while in park and while revving the engine to determine if the noise is engine-related or drivetrain-related.
5
Inspect the drivetrain components such as the transmission and differential for signs of wear or damage.
6
Examine the air intake system for any loose fittings or damaged components that could cause noise.

Solution

1. Preparation

Tools Required: Jack and jack stands, OBD-II scanner, socket set, wrenches, screwdriver set.
Safety Warnings: Ensure the vehicle is on a flat surface and secured with jack stands before working underneath.

2. Repair Exhaust Leaks

Sub-steps:
1. Raise the vehicle using a jack and secure it with jack stands.
2. Inspect the exhaust pipes, muffler, and catalytic converter for holes or cracks.
3. Tighten any loose bolts or clamps. If any parts are damaged, replace them with new components.
4. Use exhaust sealant on minor leaks if applicable.

3. Replace Worn Engine Mounts

Sub-steps:
1. Locate the engine mounts under the vehicle.
2. Use a socket set to unbolt the damaged engine mounts.
3. Install new engine mounts, ensuring they are torqued to the manufacturer specifications.
4. Lower the vehicle and check for any noise while revving the engine.

4. Inspect and Repair Drivetrain Components

Sub-steps:
1. Check the transmission fluid level and condition; replace or top off if necessary.
2. Inspect the differential for leaks and check the fluid level; refill if necessary.
3. Replace any damaged or worn-out components in the drivetrain as needed.