how to troubleshoot ignition issues in Ford Explorer Fifth Generation (2011-2019)

Ford Explorer Fifth Generation (2011-2019)

Error Codes

2-4 hours

Time

medium

Difficulty

high

Severity

3 min read

575 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 troubleshoot ignition issues in Ford Explorer Fifth Generation (2011-2019). Step-by-step guide with diagnostic steps and repair instructions.

Affected Component

Electrical

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 repairs near hot components.

Symptoms

•Check engine light illuminated
•Engine cranks but does not start
•Rough idling or misfiring
•Intermittent stalling during operation
•Reduced fuel efficiency
•No sound when turning the key to the start position

Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify any stored trouble codes.
2
Inspect the battery health and charge; ensure the terminals are clean and tight.
3
Check the fuses related to the ignition system for any blown fuses.
4
Test the ignition switch for proper operation with a multimeter.
5
Inspect the ignition coil for signs of damage or wear.
6
Verify the condition of spark plugs and wires to ensure they are functioning properly.

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
•Screwdriver set
•Socket set
•Torque wrench

Parts Required

•Ignition switch (if faulty)
•Ignition coil (if faulty)
•Spark plugs

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Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify any stored trouble codes.
2
Inspect the battery health and charge; ensure the terminals are clean and tight.
3
Check the fuses related to the ignition system for any blown fuses.
4
Test the ignition switch for proper operation with a multimeter.
5
Inspect the ignition coil for signs of damage or wear.
6
Verify the condition of spark plugs and wires to ensure they are functioning properly.

Solution

1. Preparation

Gather tools and parts required for the repair.
Disconnect the negative battery terminal to ensure safety.
Ensure the vehicle is on a flat, stable surface.

2. Inspect and Test Battery

Tools Required: Multimeter
Sub-steps:
1. Use the multimeter to check the battery voltage; it should be around 12.6 volts.
2. If the voltage is low, recharge or replace the battery as necessary.

3. Replace Ignition Switch (if faulty)

Tools Required: Screwdriver set, socket set
Sub-steps:
1. Remove the steering column cover by unscrewing the screws.
2. Disconnect the ignition switch wiring harness.
3. Remove the ignition switch by unbolting it from its housing.
4. Install the new ignition switch and reconnect the wiring harness.
5. Reattach the steering column cover.

4. Replace Ignition Coil (if faulty)

Tools Required: Socket set, torque wrench
Sub-steps:
1. Remove the engine cover if applicable.
2. Disconnect the electrical connector from the ignition coil.
3. Unbolt the ignition coil from the cylinder head.
4. Install the new ignition coil, making sure it is seated correctly.
5. Torque the bolts to the manufacturer’s specifications (check service manual).
6. Reconnect the electrical connector.

5. Replace Spark Plugs

Tools Required: Spark plug socket, torque wrench
Sub-steps:
1. Remove the ignition coil to access the spark plugs.
2. Use a spark plug socket to remove the old spark plugs.
3. Check the gap on the new spark plugs and adjust if necessary.
4. Install the new spark plugs and torque them to the manufacturer’s specifications.
5. Reinstall the ignition coil.