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

Ford Explorer Fifth Generation (2011-2019)

Error Codes

2-4 hours

Time

medium

Difficulty

high

Severity

3 min read

507 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 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 components.
•Allow the engine to cool completely before inspecting components near the engine.

Symptoms

•Flashing check engine light
•Loss of power during acceleration
•Rough engine idle
•Increased fuel consumption
•Engine misfiring or stalling

Diagnostic Steps

1
Scan the vehicle's OBD-II system for error codes using an OBD-II scanner.
2
Inspect the spark plugs and ignition coils for any signs of wear or damage.
3
Check for vacuum leaks in the intake system.
4
Test the fuel pressure with a fuel pressure gauge to ensure proper fuel delivery.
5
Review the vehicle's maintenance history for recent repairs or changes.

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
•Fuel pressure gauge
•Smoke machine
•Carburetor cleaner

Parts Required

•Spark plugs
•Ignition coils
•Fuel filter (if necessary)
•Fuel pump (if necessary)
•Vacuum hoses and gaskets (if necessary)

Related Faults

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Diagnostic Steps

1
Scan the vehicle's OBD-II system for error codes using an OBD-II scanner.
2
Inspect the spark plugs and ignition coils for any signs of wear or damage.
3
Check for vacuum leaks in the intake system.
4
Test the fuel pressure with a fuel pressure gauge to ensure proper fuel delivery.
5
Review the vehicle's maintenance history for recent repairs or changes.

Solution

1. Preparation

Gather tools and ensure the vehicle is parked on a flat surface.
Disconnect the battery to avoid any electrical shorts during repairs.

2. Check Ignition System

Sub-step 1: Remove the engine cover (if applicable) using a socket set.
Sub-step 2: Disconnect the ignition coil connectors and remove the bolts securing the coils.
Sub-step 3: Inspect each spark plug for wear; replace if necessary.
Sub-step 4: Replace any faulty ignition coils with new ones.

Tools Required:

Socket set
Torque wrench

3. Inspect Fuel System

Sub-step 1: Reconnect the battery and turn the ignition to the "ON" position without starting the engine.
Sub-step 2: Attach the fuel pressure gauge to the fuel rail test port.
Sub-step 3: Start the engine and check the fuel pressure reading; compare it to manufacturer specifications.
Sub-step 4: If pressure is low, inspect and replace the fuel filter and/or fuel pump if necessary.

4. Check for Vacuum Leaks

Sub-step 1: Use a smoke machine or carburetor cleaner to detect vacuum leaks around intake hoses and gaskets.
Sub-step 2: Replace any faulty hoses or gaskets as identified during the inspection.

5. Reassemble and Test

Sub-step 1: Reinstall any components removed during the inspection.
Sub-step 2: Clear the error codes using the OBD-II scanner.
Sub-step 3: Test drive the vehicle to ensure the engine light remains off and monitor for any unusual behavior.