why does my Ford Explorer Fifth Generation (2011-2019) check engine light keep coming on

Ford Explorer Fifth Generation (2011-2019)

Error Codes

2-4 hours

Time

medium

Difficulty

medium

Severity

3 min read

501 words

Problem Statement

Learn how to diagnose and fix the check engine light issue in Ford Explorer Fifth Generation (2011-2019). 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.
•Relieve fuel system pressure before replacing fuel components.

Symptoms

•Check engine light illuminated
•Engine running rough or misfiring
•Decreased fuel efficiency
•Unusual smells (e.g., fuel or burning)
•Engine stalling or hesitation during acceleration
•Increased emissions

Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify specific trouble codes.
2
Check engine oil and coolant levels to ensure they are within normal ranges.
3
Inspect the gas cap for cracks or improper sealing; tighten or replace if necessary.
4
Examine the ignition system components, including spark plugs and ignition coils, for wear or damage.
5
Test the fuel system for proper pressure and flow using a fuel pressure gauge.
6
Inspect the exhaust system for leaks or blockages that could affect emissions readings.

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
•Fuel pressure gauge
•Fuel line disconnect tool

Parts Required

•Ignition coils (if defective)
•Spark plugs
•Fuel filter (if needed)

Related Faults

Share this solution

Comments

No comments yet

Be the first to share your thoughts

Back to Generation

Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify specific trouble codes.
2
Check engine oil and coolant levels to ensure they are within normal ranges.
3
Inspect the gas cap for cracks or improper sealing; tighten or replace if necessary.
4
Examine the ignition system components, including spark plugs and ignition coils, for wear or damage.
5
Test the fuel system for proper pressure and flow using a fuel pressure gauge.
6
Inspect the exhaust system for leaks or blockages that could affect emissions readings.

Solution

1. Preparation

Gather necessary tools and parts.
Disconnect the negative battery terminal to prevent electrical shorts.

2. Replace Faulty Components

A. Spark Plugs and Ignition Coils

Remove the engine cover if applicable.
Disconnect the electrical connectors from the ignition coils.
Use a socket wrench to remove the ignition coils.
Replace the spark plugs using a spark plug socket, ensuring they are gapped correctly (refer to specifications).
Reinstall the new ignition coils and reconnect the electrical connectors.

B. Replace Fuel Filter (if indicated)

Locate the fuel filter; it is usually along the fuel line.
Relieve fuel system pressure by removing the fuel pump fuse and running the engine until it stalls.
Disconnect the fuel lines from the old filter using a fuel line disconnect tool.
Install the new fuel filter, ensuring the flow direction is correct.
Reconnect the fuel lines securely and replace the fuel pump fuse.

3. Clear Error Codes

Reconnect the negative battery terminal.
Use the OBD-II scanner to clear any error codes from the ECU.
Start the engine to check if the check engine light remains off.