how to fix timing chain issues on Ford Explorer Sixth Generation (2020-present)

Ford Explorer Sixth Generation (2020-present)

Error Codes

4-8 hours

Time

hard

Difficulty

high

Severity

3 min read

522 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 timing chain issues on Ford Explorer Sixth Generation (2020-present). Step-by-step guide with symptoms and solutions.

Affected Component

Engine

Estimated Time

4-8 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect the battery before working on electrical systems.
•Allow engine to cool before opening any components to avoid burns.

Symptoms

•Rattling noise from the engine, especially during startup
•Check engine light illuminated
•Rough idle or poor engine performance
•Engine stalling or misfires
•Loss of power during acceleration

Diagnostic Steps

1
Scan the vehicle’s OBD-II system for any error codes related to the timing chain or engine performance.
2
Inspect the timing chain visually for any signs of wear, slack, or misalignment.
3
Check the timing chain tensioner for proper operation and any signs of damage or wear.
4
Measure the timing chain stretch using a timing chain gauge to determine if replacement is necessary.
5
Inspect the oil level and quality, as low or dirty oil can affect timing chain performance.

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
•Timing chain gauge
•Screwdrivers
•Pliers

Parts Required

•Timing chain
•Timing chain tensioner
•Timing chain guides
•Gasket for timing chain cover

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Diagnostic Steps

1
Scan the vehicle’s OBD-II system for any error codes related to the timing chain or engine performance.
2
Inspect the timing chain visually for any signs of wear, slack, or misalignment.
3
Check the timing chain tensioner for proper operation and any signs of damage or wear.
4
Measure the timing chain stretch using a timing chain gauge to determine if replacement is necessary.
5
Inspect the oil level and quality, as low or dirty oil can affect timing chain performance.

Solution

1. Preparation

Gather all necessary tools and parts.
Disconnect the battery to prevent electrical issues.
Ensure the engine is cool before starting work.

2. Remove Engine Covers

Remove any plastic engine covers by unscrewing bolts or clips.
Carefully set aside the covers to prevent damage.

3. Access Timing Chain

Remove any components obstructing access to the timing chain (e.g., belts, pulleys, or brackets).
Use a socket set to remove the timing chain cover bolts and gently pry the cover off.

4. Inspect and Replace Timing Chain

Inspect the timing chain, tensioner, and guides for wear. If any components are damaged or stretched, replace them.
To replace the timing chain:
1. Align the timing marks on the crankshaft and camshaft.
2. Remove the old timing chain.
3. Install the new timing chain, ensuring the timing marks are aligned correctly.
4. Install a new tensioner and guides as necessary.

5. Reassemble Components

Reinstall the timing chain cover, ensuring a proper seal with new gasket material or a gasket if applicable.
Reattach any removed components, tightening bolts to the manufacturer’s specified torque values.

6. Final Checks

Reconnect the battery.
Start the engine and listen for any unusual noises.
Check oil levels and ensure proper oil flow to the timing chain.