why is my Ford Explorer's engine light flashing while driving

Ford Explorer Fifth Generation (2011-2019)

Error Codes

2-4 hours

Time

medium

Difficulty

high

Severity

3 min read

553 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 check engine light in Ford Explorer. Step-by-step guide with diagnostic procedures and repair instructions.

Affected Component

Engine

Estimated Time

2-4 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect battery before working on electrical systems
•Allow the engine to cool before performing repairs to avoid burns

Symptoms

•Flashing check engine light
•Rough engine idle
•Decreased engine power
•Increased fuel consumption
•Unusual engine noises (e.g., misfire)
•Possible engine overheating

Diagnostic Steps

1
Use an OBD-II scanner to retrieve diagnostic trouble codes (DTCs)
2
Inspect the ignition system components, including spark plugs and ignition coils
3
Check for any vacuum leaks in the intake manifold or hoses
4
Examine fuel delivery system components, such as fuel injectors and fuel pressure
5
Test engine compression to assess the overall health of the engine
6
Review recent maintenance records for any missed services or repairs

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
•Compression tester

Parts Required

•New spark plugs
•Ignition coils (if faulty)
•Fuel injectors (if clogged)
•Vacuum hoses (if damaged)

Related Faults

Share this solution

Comments

No comments yet

Be the first to share your thoughts

Back to Generation

Diagnostic Steps

1
Use an OBD-II scanner to retrieve diagnostic trouble codes (DTCs)
2
Inspect the ignition system components, including spark plugs and ignition coils
3
Check for any vacuum leaks in the intake manifold or hoses
4
Examine fuel delivery system components, such as fuel injectors and fuel pressure
5
Test engine compression to assess the overall health of the engine
6
Review recent maintenance records for any missed services or repairs

Solution

1. Preparation

Gather necessary tools and parts.
Ensure the vehicle is parked on a level surface, and the engine is off and cool.
Disconnect the battery to prevent any electrical shorts during the repair.

2. Inspect and Replace Ignition Components

Spark Plugs Replacement
- Remove the ignition coil cover (if applicable) using a socket set.
- Disconnect the electrical connectors from the ignition coils.
- Remove the ignition coils and replace old spark plugs with new ones (check gap specifications).
- Reinstall ignition coils and connectors.
Ignition Coils Replacement
- If any ignition coils are found faulty during inspection, replace them.
- Ensure each coil is seated properly and connected securely.

3. Check and Repair Fuel Delivery System

Inspect Fuel Injectors
- Remove the fuel rail to access the injectors.
- Inspect injectors for clogs or leaks, clean or replace as necessary.
Test and Adjust Fuel Pressure
- Connect a fuel pressure gauge to the fuel rail.
- Start the engine and check for proper fuel pressure (according to manufacturer specifications).
- Replace the fuel pump if pressure is below specifications.

4. Vacuum Leak Repair

Inspect all vacuum hoses and intake manifold gaskets for signs of wear or damage.
Replace any damaged hoses or gaskets to ensure proper vacuum levels.

5. Engine Compression Test

Remove spark plugs and connect a compression tester to each cylinder.
Crank the engine and take note of the readings; compare them against manufacturer specifications.
Address any cylinders with low compression by checking piston rings or valves.