why does my Ford Explorer Fifth Generation (2011-2019) have a check engine light and then turns off

Ford Explorer Fifth Generation (2011-2019)

Error Codes

2-4 hours

Time

medium

Difficulty

medium

Severity

3 min read

542 words

Problem Statement

Diagnose and fix intermittent check engine light issues in Ford Explorer (2011-2019). Step-by-step guide with diagnostic steps 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 components.
•Allow the engine to cool before performing any inspections or repairs.

Symptoms

•Check engine light illuminated intermittently
•Engine may run rough during the check engine light's illumination
•Loss of power or acceleration hesitation
•Fluctuating idle speed
•Possible decrease in fuel economy

Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify any stored trouble codes.
2
Inspect the vehicle's gas cap for proper sealing and any signs of damage.
3
Check for vacuum leaks in the intake system and around the throttle body.
4
Examine the ignition system components, including spark plugs and coils.
5
Inspect the fuel system for pressure and flow issues, including the fuel filter and injectors.
6
Review the vehicle's service history for any recent repairs or maintenance that may affect performance.

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
•Multimeter
•Fuel pressure gauge
•Torque wrench

Parts Required

•Spark plugs (if replacement is necessary)
•Ignition coils (if replacement is necessary)
•Fuel filter (if replacement is necessary)
•Gas cap (if damaged)

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 vehicle's gas cap for proper sealing and any signs of damage.
3
Check for vacuum leaks in the intake system and around the throttle body.
4
Examine the ignition system components, including spark plugs and coils.
5
Inspect the fuel system for pressure and flow issues, including the fuel filter and injectors.
6
Review the vehicle's service history for any recent repairs or maintenance that may affect performance.

Solution

1. Preparation

Gather necessary tools and parts.
Ensure the vehicle is parked on a level surface and the engine is cool.
Disconnect the negative battery terminal to prevent electrical shorts.

2. Scan and Analyze Codes

Using an OBD-II scanner, retrieve and document any error codes.
Research the codes to determine potential faulty components or systems.

3. Inspect the Gas Cap

Remove the gas cap and visually inspect it for cracks or damage.
If damaged, replace the gas cap with a new one.
Reinstall the gas cap securely and clear any error codes.

4. Check for Vacuum Leaks

Visually inspect all vacuum hoses for cracks or disconnections.
Use a smoke machine or carburetor cleaner to detect leaks while the engine is running.
Repair or replace any damaged hoses or components.

5. Examine the Ignition System

Remove spark plugs and inspect them for wear or fouling.
Test ignition coils with a multimeter to check for proper resistance.
Replace any faulty spark plugs or ignition coils.

6. Inspect the Fuel System

Check fuel pressure using a fuel pressure gauge; compare readings to manufacturer specifications.
Clean or replace the fuel filter if restrictions are found.
Inspect fuel injectors for clogs and clean or replace as necessary.