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

Ford Explorer Sixth Generation (2020-present)

Error Codes

1-3 hours

Time

medium

Difficulty

medium

Severity

3 min read

517 words

Problem Statement

Learn how to diagnose and fix the check engine light issue on your Ford Explorer Sixth Generation (2020-present) with step-by-step instructions.

Affected Component

Engine

Estimated Time

1-3 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Ensure the vehicle is in park or neutral with the parking brake engaged before starting work.
•Disconnect the battery before working on electrical systems.
•Allow the engine to cool before working on the engine compartment.

Symptoms

•Check engine light illuminated on the dashboard
•Engine running rough or misfiring
•Decreased fuel efficiency
•Unusual noises from the engine compartment
•Failed emissions test (if applicable)
•Lack of power during acceleration

Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify specific trouble codes.
2
Inspect the gas cap for tightness or damage, as a loose cap can trigger the check engine light.
3
Check engine oil and coolant levels to ensure they are within normal ranges.
4
Inspect the air filter for dirt or blockages that may affect air intake.
5
Verify the condition of the spark plugs and ignition coils.
6
Examine the exhaust system for leaks or damage.

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
•Multimeter
•Basic hand tools

Parts Required

•New spark plugs (if needed)
•New ignition coils (if needed)
•New air filter (if needed)
•Replacement gas cap (if needed)

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Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify specific trouble codes.
2
Inspect the gas cap for tightness or damage, as a loose cap can trigger the check engine light.
3
Check engine oil and coolant levels to ensure they are within normal ranges.
4
Inspect the air filter for dirt or blockages that may affect air intake.
5
Verify the condition of the spark plugs and ignition coils.
6
Examine the exhaust system for leaks or damage.

Solution

1. Preparation

Tools Required: OBD-II scanner, socket set, torque wrench, multimeter, basic hand tools.
Safety Warnings: Ensure the vehicle is in park or neutral with the parking brake engaged before starting work.

2. Retrieve Error Codes

Connect the OBD-II scanner to the vehicle’s diagnostic port.
Turn the ignition to the ON position (do not start the engine).
Follow the scanner’s prompts to retrieve and record any trouble codes.

3. Address Common Issues

Gas Cap:
- If a code indicates a loose or faulty gas cap, remove and inspect it.
- Replace it if damaged or if it does not seal properly.
Spark Plugs/Ignition Coils:
- Remove the ignition coils using a socket set.
- Inspect spark plugs for wear and replace if necessary (torque to manufacturer's specifications).
Air Filter:
- Remove the air filter housing cover.
- Replace the air filter if it is dirty or clogged.

4. Clear Codes

After addressing the issues, use the OBD-II scanner to clear the error codes.
Turn the ignition off and then start the engine to verify that the check engine light is off.

5. Test Drive

Take the vehicle for a short test drive to ensure that the check engine light does not reappear.
Monitor engine performance for any irregularities.