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

503 words

Problem Statement

Discover how to diagnose and resolve check engine light issues in Ford Explorer (2011-2019). Step-by-step guide with symptoms, diagnostics, and 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 opening any components.

Symptoms

•Check engine light illuminated
•Engine stalling or misfiring
•Reduced engine performance or power loss
•Poor fuel economy
•Rough idle or unusual engine noise
•Increased emissions

Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify specific trouble codes.
2
Inspect the gas cap for proper sealing and any signs of damage.
3
Check engine oil and coolant levels to ensure they are within the recommended range.
4
Visually inspect the air intake system for leaks or obstructions.
5
Test the battery voltage and connections for any signs of corrosion or poor contact.
6
Examine spark plugs and 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
•Socket set
•Torque wrench
•Multimeter
•Fuel pressure gauge

Parts Required

•Spark plugs
•Ignition coils
•Oxygen sensors (if faulty)
•Fuel injectors (if necessary)
•Gas cap (if damaged)

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
Inspect the gas cap for proper sealing and any signs of damage.
3
Check engine oil and coolant levels to ensure they are within the recommended range.
4
Visually inspect the air intake system for leaks or obstructions.
5
Test the battery voltage and connections for any signs of corrosion or poor contact.
6
Examine spark plugs and ignition coils for wear or damage.

Solution

1. Preparation

Gather all necessary tools and parts.
Disconnect the battery negative terminal to prevent electrical short circuits.
Ensure the vehicle is on a level surface and secure with wheel chocks.

2. Address Error Codes

Sub-steps:
- Review the retrieved error codes from the OBD-II scanner.
- Research specific codes to determine the related components.
- Perform component tests as indicated by the codes (e.g., test for fuel pressure, inspect O2 sensors).

3. Inspect and Replace Components

Sub-steps:
- Fuel System: Inspect, clean, or replace fuel injectors if necessary.
- Ignition System: Replace worn spark plugs and faulty ignition coils.
- Oxygen Sensors: Test O2 sensors and replace if readings are out of range.
- Evaporative Emission Control (EVAP): Inspect the EVAP system for leaks, and replace the gas cap if damaged.

4. Clear Codes and Reconnect Battery

Sub-steps:
- Use the OBD-II scanner to clear the error codes.
- Reconnect the battery terminal securely.
- Ensure all tools are removed from the engine compartment.

5. Test Drive and Monitor

Sub-steps:
- Take the vehicle for a test drive to verify the engine runs smoothly.
- Monitor the check engine light to determine if it reappears.