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

509 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 comprehensive guide.

Affected Component

Engine

Estimated Time

1-3 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect battery before working on electrical systems.
•Allow engine to cool before opening any engine components.

Symptoms

•Check engine light illuminated on the dashboard
•Rough engine idle or misfires
•Decreased fuel efficiency
•Stalling or hesitation during acceleration
•Unusual engine noises
•Increased emissions detected

Diagnostic Steps

1
Scan the vehicle's onboard diagnostics using an OBD-II scanner to retrieve error codes.
2
Inspect the gas cap for proper sealing and for any signs of damage or wear.
3
Check the engine oil level and quality, as low or poor oil can trigger engine alerts.
4
Examine the air filter and intake system for blockages or leaks.
5
Inspect spark plugs and ignition coils for wear or failure.
6
Review the vehicle's maintenance history to identify any recent service or repairs that may have contributed to the issue.

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
•Throttle body cleaner

Parts Required

•New gas cap
•Spark plugs
•Ignition coils (if needed)
•Air filter (if needed)

Related Faults

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Diagnostic Steps

1
Scan the vehicle's onboard diagnostics using an OBD-II scanner to retrieve error codes.
2
Inspect the gas cap for proper sealing and for any signs of damage or wear.
3
Check the engine oil level and quality, as low or poor oil can trigger engine alerts.
4
Examine the air filter and intake system for blockages or leaks.
5
Inspect spark plugs and ignition coils for wear or failure.
6
Review the vehicle's maintenance history to identify any recent service or repairs that may have contributed to the issue.

Solution

1. Preparation

Gather tools and parts needed for repair.
Disconnect the battery to ensure safety while working on electrical components.
Allow the engine to cool down if it has been running.

2. Addressing Diagnostic Codes

Sub-step 1: Clear the error codes using the OBD-II scanner.
Sub-step 2: If the check engine light returns, refer to the specific codes retrieved for targeted troubleshooting.

3. Replace Faulty Components

Sub-step 1: If the gas cap is damaged, replace it with a new OEM or quality aftermarket gas cap.
Sub-step 2: For worn spark plugs, remove the old plugs using a socket set, and install new spark plugs ensuring proper torque specifications (typically 13-15 ft-lbs).
Sub-step 3: If ignition coils are faulty, disconnect the electrical connector, remove the coil using a socket set, and replace it with a new coil, ensuring proper connection.

4. Inspect and Clean Engine Components

Sub-step 1: Remove and inspect the air filter; replace it if clogged.
Sub-step 2: Check the intake for leaks; replace any damaged hoses.
Sub-step 3: Clean the throttle body using appropriate throttle body cleaner if necessary.

5. Final Checks

Sub-step 1: Reconnect the battery and start the engine.
Sub-step 2: Monitor for check engine light re-illumination.