how do I fix the check engine light on my Ford Explorer Sixth Generation (2020-present)

Ford Explorer Sixth Generation (2020-present)

Error Codes

1-2 hours

Time

medium

Difficulty

medium

Severity

3 min read

547 words

Problem Statement

Learn how to diagnose and fix the check engine light issue in Ford Explorer Sixth Generation (2020-present). Step-by-step guide with diagnostic steps and repair instructions.

Affected Component

Engine

Estimated Time

1-2 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect the battery before working on electrical components.
•Allow the engine to cool before inspecting or working on it.

Symptoms

•Check engine light illuminated on the dashboard
•Rough idle or engine misfire
•Decreased fuel efficiency
•Unusual engine noises
•Poor acceleration or power loss

Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify specific issues.
2
Inspect the gas cap for proper sealing and any signs of damage.
3
Check for visible leaks in the vacuum lines and hoses.
4
Examine the engine oil and coolant levels to ensure they are at proper levels.
5
Inspect the condition of spark plugs and ignition coils.
6
Review any recent vehicle maintenance or repairs that could affect engine 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
•Screwdrivers
•Inspection mirror

Parts Required

•New gas cap (if required)
•Spark plugs (if worn or damaged)
•Ignition coils (if faulty)
•Vacuum hoses (if damaged)

Related Faults

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Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify specific issues.
2
Inspect the gas cap for proper sealing and any signs of damage.
3
Check for visible leaks in the vacuum lines and hoses.
4
Examine the engine oil and coolant levels to ensure they are at proper levels.
5
Inspect the condition of spark plugs and ignition coils.
6
Review any recent vehicle maintenance or repairs that could affect engine performance.

Solution

1. Preparation

Gather necessary tools and parts.
Ensure the vehicle is parked on a level surface and the engine is cool.
Disconnect the negative battery terminal to prevent electrical shorts.

2. Retrieve Error Codes

Connect the OBD-II scanner to the vehicle’s diagnostic port.
Turn the ignition to the "ON" position without starting the engine.
Follow the scanner prompts to read and record any stored error codes.

3. Address Identified Issues

Depending on the codes retrieved, follow these sub-steps:

For a Faulty Gas Cap

Remove the gas cap and inspect for cracks or wear.
Replace with a new gas cap if necessary (ensure it matches OEM specifications).

For Ignition System Issues

Remove the ignition coils using a socket set.
Inspect and replace faulty spark plugs if necessary (replace with OEM parts, typically gap to 0.054 inches).
Reinstall ignition coils, ensuring proper torque (typically 7-10 ft-lbs).

For Vacuum Leaks

Inspect vacuum lines for cracks or disconnections.
Replace any damaged hoses with new OEM replacements.
Recheck connections and secure all clamps.

4. Clear Error Codes

After making repairs, reconnect the battery terminal.
Use the OBD-II scanner to clear the error codes.
Turn the ignition to the "ON" position and check if the check engine light resets.

5. Final Inspection

Start the engine and monitor for any abnormal sounds or behaviors.
Test drive the vehicle to confirm the check engine light does not re-illuminate.