why is my Ford Explorer Sixth Generation (2020-present) check engine light on

Ford Explorer Sixth Generation (2020-present)

Error Codes

1-3 hours

Time

medium

Difficulty

medium

Severity

3 min read

528 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 procedures.

Affected Component

Engine

Estimated Time

1-3 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

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

Symptoms

•Check engine light illuminated on the dashboard
•Reduced engine performance or power loss
•Rough idling or stalling at low speeds
•Unusual engine noises (e.g., knocking or pinging)
•Poor fuel economy
•Increased emissions or noticeable exhaust smoke

Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify specific trouble codes.
2
Check fluid levels, including engine oil, coolant, and transmission fluid.
3
Inspect the gas cap for proper sealing; tighten or replace if necessary.
4
Examine the air intake system for leaks or blockages.
5
Test the battery voltage and charging system to ensure proper electrical supply.
6
Inspect ignition components (spark plugs, ignition coils) for wear 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
•Multimeter
•Socket set
•Torque wrench
•Screwdrivers

Parts Required

•Replacement gas cap (if necessary)
•New spark plugs (if worn)
•New ignition coils (if needed)
•Air filter (if dirty)

Related Faults

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Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify specific trouble codes.
2
Check fluid levels, including engine oil, coolant, and transmission fluid.
3
Inspect the gas cap for proper sealing; tighten or replace if necessary.
4
Examine the air intake system for leaks or blockages.
5
Test the battery voltage and charging system to ensure proper electrical supply.
6
Inspect ignition components (spark plugs, ignition coils) for wear or damage.

Solution

1. Preparation

Gather necessary tools and parts.
Disconnect the battery to ensure safety while working on electrical components.
Allow the engine to cool before proceeding with any inspections.

2. Address Error Codes

Connect the OBD-II scanner to the vehicle's diagnostic port.
Record all trouble codes and research their meanings.
Clear the codes and monitor if they reappear after a test drive.

3. Inspect and Replace Components

Gas Cap: If the gas cap is faulty, replace it with a new one.
Ignition Components:
- Remove the ignition coils and spark plugs.
- Inspect for wear; replace if necessary.
- Reinstall the new components and torque to manufacturer specifications (typically 11-15 lb-ft for spark plugs).

4. Air Intake System Inspection

Remove the air intake duct.
Inspect the air filter; replace it if dirty.
Check for any cracks or loose fittings in the intake hoses.

5. Electrical System Check

Use a multimeter to check the battery voltage (should be around 12.6 volts when fully charged).
Inspect and clean battery terminals and connections.
If the battery is weak, replace it with a new one.

6. Final Steps

Reconnect the battery and ensure all connections are secure.
Start the engine and monitor for any unusual sounds or continued check engine light illumination.