why does my Ford Explorer Fifth Generation (2011-2019) engine light come on intermittently

Ford Explorer Fifth Generation (2011-2019)

Error Codes

1-3 hours

Time

medium

Difficulty

medium

Severity

3 min read

572 words

Problem Statement

Learn how to diagnose and fix intermittent engine light issues in Ford Explorer 2011-2019. Step-by-step guide with symptoms, diagnostic steps, and repair instructions.

Affected Component

Engine

Estimated Time

1-3 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect the battery before working on electrical systems.
•Allow the engine to cool before opening the hood to prevent burns.

Symptoms

•Engine light illuminated
•Occasional rough idle
•Decreased fuel efficiency
•Unusual noises from the engine
•Engine stalling during acceleration
•Poor performance (loss of power)

Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify any stored trouble codes.
2
Check fuel levels to ensure there is no contamination or low fuel issues.
3
Inspect the gas cap for proper sealing and any signs of damage.
4
Examine the ignition system components, including spark plugs and ignition coils.
5
Check for vacuum leaks in hoses connected to the intake manifold.
6
Assess the condition of the air filter and replace if necessary.

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
•Screwdrivers
•Vacuum gauge (optional)
•Smoke machine (optional)

Parts Required

•New gas cap (if needed)
•Ignition coils (if needed)
•Spark plugs (if needed)
•Vacuum hoses (if damaged)
•Air filter

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Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify any stored trouble codes.
2
Check fuel levels to ensure there is no contamination or low fuel issues.
3
Inspect the gas cap for proper sealing and any signs of damage.
4
Examine the ignition system components, including spark plugs and ignition coils.
5
Check for vacuum leaks in hoses connected to the intake manifold.
6
Assess the condition of the air filter and replace if necessary.

Solution

1. Preparation

Gather necessary tools and parts.
Park the vehicle on a flat surface and engage the parking brake.
Allow the engine to cool down before beginning repairs.

2. Address Error Codes

Sub-step 1: Use the OBD-II scanner to read and document any error codes.
Sub-step 2: Research the codes to determine potential causes and repairs needed.
Sub-step 3: Clear the codes from the system and perform a test drive to see if they reappear.

3. Inspect the Gas Cap

Sub-step 1: Remove the gas cap and inspect for cracks or damaged seals.
Sub-step 2: If damaged, replace the gas cap with a new, OEM-specification cap.
Sub-step 3: Reinstall the gas cap securely, ensuring it clicks into place.

4. Check Ignition Components

Sub-step 1: Remove the ignition coils and inspect for signs of wear or damage.
Sub-step 2: Replace any faulty ignition coils and/or spark plugs as indicated.
Sub-step 3: Reinstall the components ensuring proper torque specifications are followed (usually around 10-15 Nm for spark plugs).

5. Inspect for Vacuum Leaks

Sub-step 1: Visually inspect all vacuum hoses for cracks or loose connections.
Sub-step 2: Use a smoke machine or carburetor cleaner to detect leaks while the engine is running.
Sub-step 3: Replace any damaged hoses and re-check for leaks.

6. Replace Air Filter

Sub-step 1: Open the air filter housing and remove the old air filter.
Sub-step 2: Clean the housing area to remove any debris.
Sub-step 3: Install a new air filter and ensure it is seated properly.

Tools Required:

OBD-II scanner
Socket set
Torque wrench
Screwdrivers
Vacuum gauge (optional)
Smoke machine (optional)

Parts Required:

New gas cap (if needed)
Ignition coils (if needed)
Spark plugs (if needed)
Vacuum hoses (if damaged)
Air filter

Estimated Repair Time: 1-3 hours

Safety Warnings:

Disconnect the battery before working on electrical systems.
Allow the engine to cool before opening the hood to prevent burns.