why is my Ford Explorer Fifth Generation (2011-2019) making a buzzing noise when starting?

Ford Explorer Fifth Generation (2011-2019)

Error Codes

1-2 hours

Time

medium

Difficulty

high

Severity

3 min read

546 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

Diagnose and fix buzzing noise during starting in Ford Explorer (2011-2019). Step-by-step guide with symptoms, diagnostics, and repair instructions.

Affected Component

Electrical

Estimated Time

1-2 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect battery before working on electrical systems.
•Always wear safety goggles and gloves when working with batteries.
•Always allow the engine to cool before performing maintenance.

Symptoms

•Buzzing noise from the engine compartment when the ignition is turned on
•Engine fails to start or cranks slowly
•Dashboard lights flicker or dim during the start attempt
•No response or intermittent starting issues
•Possible battery warning light illuminated

Diagnostic Steps

1
Inspect the battery terminals for corrosion or a loose connection.
2
Use an OBD-II scanner to check for any stored error codes related to the starting system.
3
Test the battery voltage with a multimeter to ensure it’s within the normal range (12.4V - 12.6V).
4
Check the starter motor and solenoid connections for any signs of wear or damage.
5
Measure the voltage drop at the starter when attempting to start the engine.
6
Inspect the fuses related to the starting system for any blown fuses.

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
•Wrench set
•Socket set
•Wire brush
•Battery terminal puller

Parts Required

•New battery (if replacement is needed)
•Starter motor (if faulty)

Related Faults

Share this solution

Comments

No comments yet

Be the first to share your thoughts

Back to Generation

Diagnostic Steps

1
Inspect the battery terminals for corrosion or a loose connection.
2
Use an OBD-II scanner to check for any stored error codes related to the starting system.
3
Test the battery voltage with a multimeter to ensure it’s within the normal range (12.4V - 12.6V).
4
Check the starter motor and solenoid connections for any signs of wear or damage.
5
Measure the voltage drop at the starter when attempting to start the engine.
6
Inspect the fuses related to the starting system for any blown fuses.

Solution

1. Preparation

Gather necessary tools and parts.
Disconnect the battery negative terminal to prevent electrical shock.
Ensure the vehicle is in park and the ignition is off.

2. Battery Inspection

Tools Required: Wrench set, wire brush, multimeter.
Clean the battery terminals using a wire brush to remove any corrosion.
Ensure the connections are tight and secure.
Safety Warning: Always wear safety goggles and gloves when working with batteries.

3. Battery Replacement (if necessary)

If the battery voltage is below 12.4V, replace the battery.
Tools Required: Wrench set, battery terminal puller.
Remove the negative terminal first, followed by the positive terminal.
Remove the battery hold-down clamp and lift out the old battery.
Place the new battery in the tray and secure it with the hold-down clamp.
Reconnect the positive terminal first, then the negative terminal.

4. Starter Inspection

Tools Required: Socket set, multimeter.
Remove the starter motor from the vehicle by disconnecting the electrical connectors and bolts.
Inspect the starter for any signs of damage or wear.
Test the starter solenoid with a multimeter to ensure it engages properly.

5. Testing and Reinstallation

Reinstall the starter motor if it is functioning correctly.
Reconnect all electrical connections securely.
Reconnect the battery negative terminal and attempt to start the vehicle.