why is my Ford Explorer making a clicking noise when I turn the key?

Ford Explorer Fifth Generation (2011-2019)

Error Codes

1-3 hours

Time

medium

Difficulty

high

Severity

3 min read

484 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 clicking noise when turning the key in a Ford Explorer. Step-by-step guide with diagnostic procedures and repair instructions.

Affected Component

Electrical

Estimated Time

1-3 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Always disconnect the negative terminal first to avoid short circuits.
•Disconnect the battery before working on electrical systems.
•Allow the engine to cool before working on the starter motor to avoid burns.

Symptoms

•Clicking noise when turning the ignition key
•Engine does not crank or start
•Dashboard lights may dim or flicker
•Battery warning light illuminated
•No sound from the starter motor

Diagnostic Steps

1
Check the battery voltage using a multimeter to ensure it is above 12.4 volts.
2
Inspect battery terminals for corrosion or loose connections.
3
Test the starter relay by swapping it with another relay of the same type in the fuse box.
4
Use an OBD-II scanner to check for any stored trouble codes that may indicate an electrical issue.
5
Inspect the starter motor connections for looseness or damage.

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

•Multimeter
•Wire brush
•Battery cleaner
•Socket set
•Torque wrench

Parts Required

•New battery (if necessary)
•New starter motor (if necessary)

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Diagnostic Steps

1
Check the battery voltage using a multimeter to ensure it is above 12.4 volts.
2
Inspect battery terminals for corrosion or loose connections.
3
Test the starter relay by swapping it with another relay of the same type in the fuse box.
4
Use an OBD-II scanner to check for any stored trouble codes that may indicate an electrical issue.
5
Inspect the starter motor connections for looseness or damage.

Solution

1. Preparation

Gather tools and parts.
Ensure the vehicle is in park (automatic) or neutral (manual) and the parking brake is engaged.
Disconnect the negative battery terminal to prevent electrical shock.

2. Check and Clean Battery Connections

Sub-steps:
1. Remove the positive (+) terminal followed by the negative (-) terminal from the battery.
2. Clean the terminals and battery posts using a wire brush or battery terminal cleaner.
3. Reconnect the positive terminal first, then the negative terminal.
Tools Required: Wire brush, battery cleaner.
Safety Warnings: Always disconnect the negative terminal first to avoid short circuits.

3. Test and Replace Battery

Sub-steps:
1. Reconnect the battery and use a multimeter to check the voltage.
2. If the voltage is below 12.4 volts, charge the battery or replace it if it's old or defective.
Tools Required: Multimeter, battery charger (if needed).

4. Inspect and Replace Starter Motor (if necessary)

Sub-steps:
1. Remove the starter motor by disconnecting the wiring harness and unbolting it from the engine block.
2. Install the new starter motor by reversing the removal steps.
3. Torque the mounting bolts to the manufacturer’s specifications (generally around 30-40 ft-lbs).
Tools Required: Socket set, torque wrench.
Safety Warnings: Ensure the vehicle is securely supported when working underneath.