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

545 words

Problem Statement

Learn how to diagnose and fix loud noise when accelerating 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 secure before lifting
•Always wear safety goggles and gloves
•Disconnect the battery before working on electrical systems
•Allow the engine to cool before inspecting the exhaust system

Symptoms

•Loud rumbling or roaring noise when accelerating
•Decreased acceleration power
•Vibrations felt through the vehicle
•Potential check engine light illuminated
•Unusual exhaust fumes or smell

Diagnostic Steps

1
Scan for error codes using OBD-II scanner
2
Inspect the exhaust system for visible leaks, cracks, or damage
3
Check engine mounts for wear or damage
4
Determine noise location to identify the source
5
Inspect drive belts for wear, fraying, or improper tension
6
Take the vehicle for a test drive to replicate the 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

•OBD-II scanner
•Jack and jack stands
•Socket set
•Torque wrench
•Flashlight

Parts Required

•Exhaust system components (muffler, pipe sections, etc.)
•Serpentine belt
•Engine mounts (if applicable)

Related Faults

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Diagnostic Steps

1
Scan for error codes using OBD-II scanner
2
Inspect the exhaust system for visible leaks, cracks, or damage
3
Check engine mounts for wear or damage
4
Determine noise location to identify the source
5
Inspect drive belts for wear, fraying, or improper tension
6
Take the vehicle for a test drive to replicate the noise

Solution

1. Preparation

Tools Required: Jack and jack stands, socket set, OBD-II scanner.
Safety Warnings: Ensure the vehicle is on a flat surface and secure before lifting. Always wear safety goggles and gloves.

2. Inspect and Repair Exhaust System

Sub-steps:
1. Lift the vehicle using a jack and secure it with jack stands.
2. Inspect the entire exhaust system from the engine to the tailpipe for any signs of damage or rust.
3. Locate any leaks or holes; use a flashlight as needed.
4. If a leak is found, determine whether it requires a patch, replacement section, or a new muffler.
5. For minor leaks, use exhaust sealant. For major repairs, replace the affected component.

3. Replace Damaged Drive Belts

Sub-steps:
1. Locate the serpentine belt and inspect for signs of wear or damage.
2. If damaged, loosen the tensioner and remove the old belt.
3. Install a new serpentine belt according to the routing diagram usually found on the engine bay.
4. Tighten the tensioner to the manufacturer’s specifications.

4. Repair or Replace Engine Mounts

Sub-steps:
1. Visually inspect engine mounts for cracks or excessive wear.
2. If damaged, remove the bolts securing the engine mount to the frame and engine.
3. Replace with new engine mounts, ensuring proper alignment.
4. Torque bolts to the manufacturer’s specifications.