my Ford Explorer Fifth Generation (2011-2019) won't start but the battery is good

Ford Explorer Fifth Generation (2011-2019)

Error Codes

2-4 hours

Time

medium

Difficulty

high

Severity

3 min read

555 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 the no-start issue in Ford Explorer 2011-2019. Step-by-step guide with diagnostic procedures 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 inspecting any components under the hood.

Symptoms

•Engine cranks but does not start
•No clicking sound when turning the key
•Dashboard lights and accessories work normally
•Security light may be flashing
•Possible fuel pump activation noise not heard

Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to check for any stored trouble codes.
2
Verify battery voltage with a multimeter to confirm the battery is fully charged (should be around 12.6 volts or higher).
3
Check the fuel pump relay by listening for activation sounds when the ignition is turned on.
4
Inspect fuses related to the ignition system and fuel system for any blown fuses.
5
Test the ignition switch for proper operation using a multimeter.
6
Check for fuel pressure at the fuel rail to confirm fuel delivery.
7
Inspect the key fob and immobilizer system for proper functionality, ensuring the key is recognized.

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
•Socket set
•Screwdriver set

Parts Required

•Fuel pump relay (if faulty)
•Ignition switch (if faulty)
•Fuses (if blown)

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Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to check for any stored trouble codes.
2
Verify battery voltage with a multimeter to confirm the battery is fully charged (should be around 12.6 volts or higher).
3
Check the fuel pump relay by listening for activation sounds when the ignition is turned on.
4
Inspect fuses related to the ignition system and fuel system for any blown fuses.
5
Test the ignition switch for proper operation using a multimeter.
6
Check for fuel pressure at the fuel rail to confirm fuel delivery.
7
Inspect the key fob and immobilizer system for proper functionality, ensuring the key is recognized.

Solution

1. Preparation

Gather necessary tools and parts.
Ensure the vehicle is parked on a flat surface and the ignition is off.
Disconnect the negative battery terminal to prevent electrical shorts.

2. Inspect and Replace Fuses

Locate the fuse box (typically under the dashboard or in the engine compartment).
Remove the cover and visually inspect all fuses related to the ignition and fuel systems.
Replace any blown fuses with the same amperage rating (refer to the fuse diagram on the cover).

3. Test and Replace the Fuel Pump Relay

Locate the fuel pump relay in the fuse box.
Remove the relay and test it with a multimeter for continuity.
If defective, replace it with a new relay (ensure it matches the specifications).

4. Check and Replace the Ignition Switch

Remove the steering column cover to access the ignition switch.
Disconnect the electrical connector and test the switch with a multimeter.
Replace the ignition switch if it fails to provide continuity in the "Start" position.

5. Inspect and Clean the Key Fob/Internal Components

Check the key fob battery and replace it if necessary.
If the vehicle has a traditional key, inspect for wear.
If using a smart key, ensure it is properly programmed and recognized by the vehicle.

6. Final Assembly

Reconnect the negative battery terminal.
Ensure all components are secured and covers are replaced.