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

490 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 symptoms and solutions.

Affected Component

Engine

Estimated Time

2-4 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect battery before working on electrical systems.
•Allow engine to cool before opening components related to the cooling system.

Symptoms

•Check engine light illuminated
•Possible rough idle
•Decreased fuel efficiency
•Engine stalling or hesitating during acceleration
•Increased emissions or failed emissions test
•Odd noises from the engine compartment

Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify specific trouble codes.
2
Check and record the status of the vehicle's engine and transmission fluids.
3
Inspect the gas cap for cracks or improper sealing, ensuring it is tightened securely.
4
Examine the air intake system for leaks or obstructions.
5
Test the ignition system components, including spark plugs and ignition coils.
6
Check the exhaust system for leaks or blockages.

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
•Multimeter
•Socket set
•Torque wrench
•Screwdrivers

Parts Required

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

Related Faults

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Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify specific trouble codes.
2
Check and record the status of the vehicle's engine and transmission fluids.
3
Inspect the gas cap for cracks or improper sealing, ensuring it is tightened securely.
4
Examine the air intake system for leaks or obstructions.
5
Test the ignition system components, including spark plugs and ignition coils.
6
Check the exhaust system for leaks or blockages.

Solution

1. Preparation

Gather tools and parts needed for repairs.
Ensure the vehicle is parked on a flat surface and the engine is cool.
Disconnect the battery to prevent electrical shock.

2. Address Error Codes

Using the OBD-II scanner, note all error codes and their descriptions.
Research each code to determine the potential causes and necessary repairs.

3. Inspect and Replace Components

A. Gas Cap

Remove the gas cap and inspect for damage.
If cracked or damaged, replace the gas cap with a new one.

B. Ignition System

Remove the engine cover (if applicable) to access the ignition coils.
Test each ignition coil with a multimeter. Replace any faulty coils.
Remove spark plugs and inspect for wear or carbon buildup. Replace if necessary.

C. Air Intake System

Inspect the air filter and replace if dirty or clogged.
Check for any leaks in hoses leading to the air intake and repair as needed.

4. Exhaust System Inspection

Visually inspect the exhaust pipes and catalytic converter for any signs of damage or blockage.
If a blockage is found, clear the obstruction or replace the affected parts.