what causes the check engine light to come on in Ford Explorer Sixth Generation (2020-present)

Ford Explorer Sixth Generation (2020-present)

Error Codes

2-4 hours

Time

medium

Difficulty

medium

Severity

3 min read

538 words

Problem Statement

Discover the causes of the check engine light in Ford Explorer (2020-present) and learn step-by-step diagnostic and repair procedures.

Affected Component

Engine

Estimated Time

2-4 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect battery before working on electrical systems.
•Allow the engine to cool before starting any work.

Symptoms

•Check engine light illuminated
•Rough idle or engine misfire
•Poor acceleration or loss of power
•Increased fuel consumption
•Unusual noises from the engine bay
•Emission-related issues (smell of fuel or exhaust)

Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify specific trouble codes.
2
Check the vehicle's gas cap for proper sealing and any signs of wear or damage.
3
Inspect the engine air filter for clogs or restrictions.
4
Examine the ignition system components (spark plugs, coils) for wear or failure.
5
Assess fuel system components, including fuel injectors and fuel pressure.
6
Verify the condition of exhaust components such as the catalytic converter and oxygen sensors.

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
•Fuel pressure gauge
•Multimeter

Parts Required

•Spark plugs
•Ignition coils (if faulty)
•Fuel injectors (if needed)
•Air filter
•Oxygen sensors (if needed)

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 the vehicle's gas cap for proper sealing and any signs of wear or damage.
3
Inspect the engine air filter for clogs or restrictions.
4
Examine the ignition system components (spark plugs, coils) for wear or failure.
5
Assess fuel system components, including fuel injectors and fuel pressure.
6
Verify the condition of exhaust components such as the catalytic converter and oxygen sensors.

Solution

1. Preparation

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

2. Address Faulty Codes

Using the OBD-II scanner, note down the trouble codes.
Research each code for specific repair guidance.
Clear the codes after repairs are completed to see if they return.

3. Inspect and Replace Components

Ignition System:
- Remove spark plugs and inspect for wear or deposits.
- Replace spark plugs if necessary (use OEM specifications).
- Check ignition coils and replace if faulty.
Fuel System:
- Test the fuel pressure using a fuel pressure gauge.
- Replace fuel injectors if they fail the flow test.
Air Intake:
- Remove and clean the air filter or replace if damaged.
- Inspect the mass airflow sensor (MAF) and clean if necessary.

4. Check Emission Components

Inspect the catalytic converter for blockages or physical damage.
Replace oxygen sensors if they are showing signs of failure (use appropriate torque specifications).

5. Reassemble and Test

Reconnect the battery.
Start the engine and check for any remaining warning lights.
Test drive the vehicle to ensure all systems are functioning properly.