why does my Ford Explorer Sixth Generation (2020-present) check engine light keep coming on

Ford Explorer Sixth Generation (2020-present)

Error Codes

2-4 hours

Time

medium

Difficulty

medium

Severity

3 min read

495 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 and repair instructions.

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 or replacing components near the exhaust system.

Symptoms

•Check engine light illuminated
•Engine running rough or misfiring
•Decreased fuel efficiency
•Unusual smells from the exhaust
•Engine stalling or hesitation during acceleration
•Error codes retrieved from the OBD-II scanner

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 potential damage.
3
Check engine oil level and condition; look for any leaks.
4
Examine the air filter for clogs or restrictions.
5
Test the ignition coils and spark plugs for proper function.
6
Inspect the fuel system for proper pressure and leaks.

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
•Screwdrivers

Parts Required

•New gas cap (if faulty)
•Air filter
•Spark plugs
•Ignition coils (if necessary)
•Fuel filter (if necessary)

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 potential damage.
3
Check engine oil level and condition; look for any leaks.
4
Examine the air filter for clogs or restrictions.
5
Test the ignition coils and spark plugs for proper function.
6
Inspect the fuel system for proper pressure and leaks.

Solution

1. Preparation

Gather tools and parts required for the repair.
Disconnect the negative terminal of the battery to prevent electrical shorts.

2. Address Error Codes

Sub-step 1: Use the OBD-II scanner to read and note all error codes.
Sub-step 2: Research error codes to determine the specific component or system affected.

3. Inspect and Replace Components

Sub-step 1: If the gas cap is faulty, replace it with a new one; ensure it clicks properly when installed.
Sub-step 2: If the air filter is dirty, remove the air filter housing, replace the filter, and reassemble.
Sub-step 3: For faulty spark plugs or ignition coils, remove the respective components and replace them with OEM parts.

4. Check Fuel System

Sub-step 1: Connect a fuel pressure gauge to the fuel rail and verify that it meets manufacturer specifications.
Sub-step 2: If fuel pressure is low, inspect the fuel pump and fuel filter for blockages or failures and replace if necessary.

5. Clear Codes and Reassemble

Sub-step 1: After repairs, reconnect the battery terminal.
Sub-step 2: Use the OBD-II scanner to clear any error codes and verify the check engine light is off.