how to troubleshoot Ford Explorer Fifth Generation (2011-2019) fuel gauge not working

Ford Explorer Fifth Generation (2011-2019)

Error Codes

2-4 hours

Time

medium

Difficulty

medium

Severity

3 min read

542 words

Problem Statement

Learn how to troubleshoot and fix the fuel gauge issue in Ford Explorer Fifth Generation (2011-2019). Step-by-step guide with diagnostic procedures and repair instructions.

Affected Component

Fuel System

Estimated Time

2-4 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect battery before working on electrical systems
•Allow engine to cool before working on the fuel system to prevent burns or injuries

Symptoms

•Fuel gauge reading empty despite full tank
•Fluctuating fuel gauge readings during driving
•Check engine light illuminated (potentially related)
•Inconsistent fuel level indicator when turning the vehicle on/off
•Fuel warning light illuminated when fuel tank is not low

Diagnostic Steps

1
Scan for error codes using OBD-II scanner to check for any related diagnostic trouble codes (DTCs)
2
Inspect the fuel gauge fuse in the fuse box for continuity and replace if blown
3
Check the wiring and connectors between the fuel sending unit and the instrument cluster for any signs of damage or corrosion
4
Test the fuel sending unit resistance using a multimeter while moving the float arm to ensure it varies correctly
5
Verify the functionality of the instrument cluster by performing a self-test or checking other gauges for proper operation
6
Inspect the fuel tank and sending unit for proper installation and any signs of leakage 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

•OBD-II scanner
•Multimeter
•Socket set
•Screwdrivers
•Safety glasses
•Jack and jack stands

Parts Required

•Fuel sending unit (if replacement is necessary)
•Fuel tank shield or cover (if damaged)

Related Faults

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Diagnostic Steps

1
Scan for error codes using OBD-II scanner to check for any related diagnostic trouble codes (DTCs)
2
Inspect the fuel gauge fuse in the fuse box for continuity and replace if blown
3
Check the wiring and connectors between the fuel sending unit and the instrument cluster for any signs of damage or corrosion
4
Test the fuel sending unit resistance using a multimeter while moving the float arm to ensure it varies correctly
5
Verify the functionality of the instrument cluster by performing a self-test or checking other gauges for proper operation
6
Inspect the fuel tank and sending unit for proper installation and any signs of leakage or damage

Solution

1. Preparation

Gather necessary tools and components.
Disconnect the negative battery terminal to prevent electrical shorts.

2. Access the Fuel Sending Unit

Tools Required: Socket set, screwdrivers, and safety glasses.
Raise the vehicle using a jack and secure it with jack stands.
Remove the fuel tank shield or cover if present (if applicable).
Disconnect the fuel lines and electrical connector from the fuel pump assembly.

3. Inspect and Test the Fuel Sending Unit

Remove the fuel pump assembly from the tank.
Check the fuel sending unit for proper float operation. Manually move the float to ensure it moves freely.
Use a multimeter to measure the resistance of the sending unit; it should vary between 0 and 90 ohms as the float moves from empty to full. Replace the sending unit if it is faulty.

4. Reassemble and Reconnect

Reinstall the fuel pump assembly back into the tank, ensuring it is securely sealed.
Reconnect the fuel lines and electrical connectors.
Replace any protective covers or shields previously removed.

5. Final Steps

Reconnect the negative battery terminal.
Start the vehicle and check if the fuel gauge functions correctly.