why is my Ford Explorer Fifth Generation (2011-2019) engine light flashing

Ford Explorer Fifth Generation (2011-2019)

Error Codes

2-4 hours

Time

medium

Difficulty

high

Severity

3 min read

551 words

⚠️ Safety Warning

This issue requires immediate attention. If you are not experienced with automotive repairs, consult a professional mechanic. Working on critical systems can be dangerous.

Problem Statement

Learn how to diagnose and fix a flashing engine light on your Ford Explorer (2011-2019). Step-by-step guide with symptoms, 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 systems.
•Allow the engine to cool before performing any inspections or repairs.

Symptoms

•Check engine light flashing
•Rough engine idle
•Loss of power during acceleration
•Increased exhaust emissions
•Poor fuel economy
•Engine misfiring

Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify specific issues.
2
Inspect the spark plugs for wear or damage.
3
Check ignition coils for proper function.
4
Examine fuel injectors for clogs or faults.
5
Inspect the air intake system for leaks or blockages.
6
Verify engine coolant levels and check for overheating conditions.

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
•Screwdriver set
•Multimeter

Parts Required

•Spark plugs
•Ignition coils
•Fuel injectors (if faulty)
•Air filter

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Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify specific issues.
2
Inspect the spark plugs for wear or damage.
3
Check ignition coils for proper function.
4
Examine fuel injectors for clogs or faults.
5
Inspect the air intake system for leaks or blockages.
6
Verify engine coolant levels and check for overheating conditions.

Solution

1. Preparation

Gather necessary tools and parts.
Ensure the vehicle is parked on a flat surface and the engine is cool.

Tools Required:

OBD-II scanner
Socket set
Torque wrench
Screwdriver set
Multimeter

2. Address Ignition System Issues

Remove Engine Cover (if applicable)
- Use a socket set to remove any bolts securing the cover.
Inspect and Replace Spark Plugs
- Remove spark plug wires or coils.
- Use a spark plug socket to remove each spark plug.
- Inspect for fouling or wear; replace with OEM specifications.
- Torque new spark plugs to manufacturer specifications (usually around 13-15 ft-lbs).
Inspect and Replace Ignition Coils
- Disconnect the electrical connector from each ignition coil.
- Remove retaining bolts and pull out the coils.
- Install new coils and reconnect electrical connectors.

3. Fuel System Check

Inspect Fuel Injectors
- Remove the fuel rail (ensure fuel pressure is relieved first).
- Inspect injectors for clogs; clean or replace if necessary.
- Reinstall the fuel rail and torque to specification.
Check Fuel Pressure
- Connect a fuel pressure gauge to the fuel rail.
- Start the engine and monitor the pressure; it should be within manufacturer specifications.

4. Air Intake Inspection

Check for Leaks
- Inspect all hoses and connections on the air intake system for cracks or loose fittings.
- Repair or replace any faulty components.
Clean Air Filter
- Remove the air filter; inspect for dirt and debris.
- Clean or replace the air filter as needed.

5. Final Checks

Reconnect the battery terminals if disconnected during repairs.
Clear any error codes using the OBD-II scanner.