why does my Ford Explorer Fifth Generation (2011-2019) have a knocking noise

Ford Explorer Fifth Generation (2011-2019)

Error Codes

2-4 hours

Time

medium

Difficulty

medium

Severity

4 min read

601 words

Problem Statement

Learn how to diagnose and fix knocking noise in Ford Explorer Fifth Generation (2011-2019). Step-by-step guide with diagnostic procedures and repair instructions.

Affected Component

Suspension

Estimated Time

2-4 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect battery before working on electrical systems.
•Allow the engine to cool before opening the engine bay or working on the exhaust system.

Symptoms

•Knocking noise during acceleration or deceleration
•Noise increases with vehicle speed
•Vibration felt through the steering wheel or floor
•Check engine light may be illuminated
•Unusual engine performance or reduced power

Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to check for any stored trouble codes.
2
Perform a visual inspection of the engine bay and undercarriage for any loose components or obvious damage.
3
Check engine oil level and condition to ensure proper lubrication and identify any contamination.
4
Inspect the exhaust system for any loose or damaged parts that might produce a knocking sound.
5
Test drive the vehicle under various conditions to isolate when the knocking noise occurs.
6
Examine suspension components such as bushings, struts, and control arms for wear or damage.
7
Check transmission fluid level and condition if the noise occurs during gear shifts.

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
•Oil filter wrench
•Exhaust hanger removal tool
•Pry bar
•Oil catch pan

Parts Required

•Engine mounts (if damaged)
•Control arms or bushings (if worn)
•Exhaust hangers or sections (if damaged)
•Engine oil and oil filter

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Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to check for any stored trouble codes.
2
Perform a visual inspection of the engine bay and undercarriage for any loose components or obvious damage.
3
Check engine oil level and condition to ensure proper lubrication and identify any contamination.
4
Inspect the exhaust system for any loose or damaged parts that might produce a knocking sound.
5
Test drive the vehicle under various conditions to isolate when the knocking noise occurs.
6
Examine suspension components such as bushings, struts, and control arms for wear or damage.
7
Check transmission fluid level and condition if the noise occurs during gear shifts.

Solution

1. Preparation

Gather all necessary tools and parts.
Ensure the vehicle is parked on a flat surface and engage the parking brake.
Disconnect the battery to prevent any electrical issues during repair.

2. Inspect Engine Mounts

Tools Required: Socket set, torque wrench
Remove any components obstructing access to the engine mounts.
Visually inspect engine mounts for cracks or signs of wear.
Use a torque wrench to check the tightness of the engine mount bolts and re-tighten if loose.
Replace any damaged engine mounts with new parts.

3. Address Suspension Components

Tools Required: Jack and jack stands, socket set, pry bar
Raise the vehicle and secure with jack stands.
Inspect control arms, bushings, and struts for any signs of wear or damage.
Replace worn or damaged components as needed.
Reassemble and lower the vehicle.

4. Inspect and Repair Exhaust System

Tools Required: Wrench set, exhaust hanger removal tool
Check the exhaust hangers and supports for looseness or breaks.
Tighten or replace any loose brackets or hangers.
If the exhaust is damaged, replace the affected sections as necessary.

5. Engine Oil Change (if needed)

Tools Required: Oil filter wrench, oil catch pan, socket set
Drain the old engine oil and replace it with the manufacturer-recommended oil type.
Replace the oil filter to ensure clean oil circulation.
Check for any leaks after the oil change.