how to fix Ford Explorer Sixth Generation (2020-present) engine knocking sound

Ford Explorer Sixth Generation (2020-present)

Error Codes

3-5 hours

Time

hard

Difficulty

high

Severity

3 min read

513 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 engine knocking sound in Ford Explorer Sixth Generation (2020-present). Step-by-step guide with diagnostic procedures and repair instructions.

Affected Component

Engine

Estimated Time

3-5 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect battery before working on electrical systems.
•Allow engine to cool before opening oil drain plug or performing any work.

Symptoms

•Engine knocking sound, especially during acceleration
•Loss of power or sluggish acceleration
•Check engine light illuminated
•Increased engine temperature
•Unusual vibrations felt through the chassis

Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify any related faults.
2
Inspect the engine oil level and condition; look for signs of contamination or low oil.
3
Check for loose or damaged components such as engine mounts, pulleys, or belts.
4
Perform a visual inspection of the engine for any signs of leaks or damage.
5
Conduct a compression test on the cylinders to check for internal engine wear or damage.
6
Listen to the engine with a mechanic's stethoscope to pinpoint the location of the knocking 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
•Socket set
•Torque wrench
•Oil filter wrench
•Drain pan
•Mechanic's stethoscope (optional)

Parts Required

•Engine oil (5W-30)
•Oil filter
•Spark plugs
•Ignition coils (if required)
•Gaskets (if disassembling engine)

Related Faults

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Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify any related faults.
2
Inspect the engine oil level and condition; look for signs of contamination or low oil.
3
Check for loose or damaged components such as engine mounts, pulleys, or belts.
4
Perform a visual inspection of the engine for any signs of leaks or damage.
5
Conduct a compression test on the cylinders to check for internal engine wear or damage.
6
Listen to the engine with a mechanic's stethoscope to pinpoint the location of the knocking noise.

Solution

1. Preparation

Gather necessary tools and parts.
Disconnect the negative battery terminal to prevent electrical shorts.
Ensure the vehicle is on a flat surface and securely supported with jack stands.

2. Change Engine Oil and Filter

Sub-steps:
1. Drain the old engine oil using a drain pan.
2. Replace the oil filter with a new one.
3. Refill the engine with the manufacturer-recommended engine oil (e.g., 5W-30).
Tools Required: Oil filter wrench, socket set, drain pan, funnel.

3. Inspect and Replace Engine Components

Sub-steps:
1. Check the condition of spark plugs and ignition coils; replace if worn.
2. Inspect the timing chain or belt for wear; replace if necessary.
3. Examine the exhaust system for loose components that may cause noise.
Tools Required: Socket set, torque wrench, spark plug socket.

4. Address Internal Engine Issues

Sub-steps:
1. If compression test reveals low pressure, consider disassembling the engine for a more thorough inspection.
2. Replace worn bearings or piston rings as identified.
3. Reassemble the engine with new gaskets and ensure proper torque specifications are followed.
Tools Required: Engine hoist, torque wrench, gasket scraper.