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

473 words

Problem Statement

Discover the causes of the check engine light in Ford Explorer (2020-present). Follow our diagnostic steps and solutions for effective repairs.

Affected Component

Engine

Estimated Time

2-4 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

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

Symptoms

•Check engine light illuminated
•Poor fuel economy
•Rough idle
•Engine stalling or misfiring
•Increased emissions
•Loss 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 damage or improper sealing, as a loose cap can trigger the CEL.
3
Check engine oil and coolant levels to ensure they are within acceptable ranges.
4
Inspect the air intake system for leaks, blockages, or damaged components.
5
Evaluate the ignition system, including spark plugs and ignition coils, for wear or failure.
6
Assess the fuel system, including fuel pressure and injectors, for any malfunctions.

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
•Multimeter
•Fuel pressure gauge

Parts Required

•Spark plugs (if worn)
•Ignition coils (if faulty)
•Fuel injectors (if clogged)

Related Faults

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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 damage or improper sealing, as a loose cap can trigger the CEL.
3
Check engine oil and coolant levels to ensure they are within acceptable ranges.
4
Inspect the air intake system for leaks, blockages, or damaged components.
5
Evaluate the ignition system, including spark plugs and ignition coils, for wear or failure.
6
Assess the fuel system, including fuel pressure and injectors, for any malfunctions.

Solution

1. Preparation

Gather necessary tools and parts.
Ensure the vehicle is parked on a flat surface and the engine is off.
Disconnect the battery to prevent any electrical short circuits.

2. Retrieve and Analyze Error Codes

Connect the OBD-II scanner to the vehicle’s diagnostic port.
Turn the ignition to the "ON" position without starting the engine.
Retrieve error codes and note them for further diagnostics.

3. Inspect Gas Cap

Visually check the gas cap for cracks or damage.
Ensure the cap seals properly; replace if necessary.

4. Check Ignition System

Remove the spark plugs using a socket wrench.
Inspect the spark plugs for wear; replace if fouled or damaged.
Test ignition coils with a multimeter to ensure they are functioning properly.

5. Inspect Fuel System

Use a fuel pressure gauge to check fuel system pressure against specifications.
Inspect fuel injectors for clogs or leaks; clean or replace if necessary.

6. Clear Error Codes

After completing repairs, use the OBD-II scanner to clear any stored error codes.
Reconnect the battery.