what causes the check engine light to come on in Ford Explorer Fifth Generation (2011-2019)

Ford Explorer Fifth Generation (2011-2019)

Error Codes

1-3 hours

Time

medium

Difficulty

medium

Severity

3 min read

488 words

Problem Statement

Discover the causes of the check engine light in Ford Explorer (2011-2019) and learn how to diagnose and fix the issue with our step-by-step guide.

Affected Component

Engine

Estimated Time

1-3 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 working on engine components.

Symptoms

•Check engine light illuminated on the dashboard
•Engine stalling or misfiring
•Rough idle or poor engine performance
•Decreased fuel efficiency
•Increased emissions
•Unusual noises from the engine compartment

Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify any stored trouble codes.
2
Inspect the gas cap for damage or looseness, as this can trigger the check engine light.
3
Check the vehicle's vacuum lines for leaks that may affect engine performance.
4
Inspect the engine oil and coolant levels to ensure they are within normal ranges.
5
Test the battery and charging system to confirm proper voltage and connection.
6
Evaluate the condition of the spark plugs and ignition coils for wear or failure.

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
•Vacuum gauge
•Multimeter

Parts Required

•OEM replacement gas cap
•Spark plugs (as needed)
•Vacuum hoses (as needed)

Related Faults

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Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify any stored trouble codes.
2
Inspect the gas cap for damage or looseness, as this can trigger the check engine light.
3
Check the vehicle's vacuum lines for leaks that may affect engine performance.
4
Inspect the engine oil and coolant levels to ensure they are within normal ranges.
5
Test the battery and charging system to confirm proper voltage and connection.
6
Evaluate the condition of the spark plugs and ignition coils for wear or failure.

Solution

1. Preparation

Gather tools and parts required.
Disconnect the battery to prevent electrical shorts during repairs.

2. Address Fault Codes

Sub-step 1: Use the OBD-II scanner to read and document the trouble codes.
Sub-step 2: Research the codes to understand the specific issues indicated.
Sub-step 3: Clear the codes and perform a test drive to see if the check engine light reappears.

3. Repair Components

Sub-step 1: If the gas cap is loose or damaged, replace it with a new OEM gas cap.
Sub-step 2: For identified vacuum leaks, locate the affected hoses and replace any that are cracked or damaged.
Sub-step 3: If spark plugs are worn, remove them using a socket wrench and replace them with new plugs, ensuring to gap them correctly per manufacturer specifications.

4. System Testing

Sub-step 1: Reconnect the battery and start the engine.
Sub-step 2: Monitor the engine for any abnormal sounds or performance issues.
Sub-step 3: Use the OBD-II scanner again to ensure no new codes have appeared.