how do I fix the fuel gauge not working on my Ford Explorer Sixth Generation (2020-present)

Ford Explorer Sixth Generation (2020-present)

Error Codes

2-4 hours

Time

medium

Difficulty

medium

Severity

3 min read

533 words

Problem Statement

Learn how to diagnose and fix the fuel gauge issue in a Ford Explorer (2020-present). Step-by-step guide with symptoms, diagnostic steps, and repair instructions.

Affected Component

Fuel System

Estimated Time

2-4 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect the battery before working on electrical systems.
•Ensure the vehicle is on a level surface and securely supported when working underneath.

Symptoms

•Fuel gauge reads empty despite a full tank
•Inconsistent fuel gauge readings while driving
•Check engine light illuminated
•Fuel level warning message displayed on the dashboard
•Possible erratic behavior of other dashboard instruments

Diagnostic Steps

1
Scan the vehicle’s computer for error codes using an OBD-II scanner.
2
Inspect the fuel sending unit for proper operation and secure connections.
3
Check the wiring harness and connectors leading to the instrument cluster for damage or corrosion.
4
Test the fuel gauge using a multimeter to verify if it is receiving the correct voltage.
5
Verify the operation of the instrument cluster by performing a self-test or diagnostic check.
6
Inspect the fuel tank for any signs of damage or misalignment that could affect the sending unit.

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
•Fuel line disconnect tool

Parts Required

•Fuel sending unit (if replacement is necessary)
•Fuel pump access panel gasket (if removed)

Related Faults

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Diagnostic Steps

1
Scan the vehicle’s computer for error codes using an OBD-II scanner.
2
Inspect the fuel sending unit for proper operation and secure connections.
3
Check the wiring harness and connectors leading to the instrument cluster for damage or corrosion.
4
Test the fuel gauge using a multimeter to verify if it is receiving the correct voltage.
5
Verify the operation of the instrument cluster by performing a self-test or diagnostic check.
6
Inspect the fuel tank for any signs of damage or misalignment that could affect the sending unit.

Solution

1. Preparation

Gather necessary tools and parts.
Disconnect the negative battery terminal to ensure safety during repairs.
Allow the vehicle to cool if it has been running.

2. Inspect and Replace Fuel Sending Unit

Tools Required: Socket set, screwdrivers, fuel line disconnect tool, multimeter.
Sub-steps:
1. Raise the vehicle on a jack and secure with jack stands.
2. Remove the fuel pump access panel (if applicable) or lower the fuel tank.
3. Disconnect the fuel lines using a fuel line disconnect tool.
4. Remove the retaining ring holding the fuel sending unit in place.
5. Carefully lift the fuel sending unit out of the tank.
6. Inspect the float and wiring for any damage.
7. If damaged, replace the fuel sending unit with a new one, ensuring the float moves freely.
8. Reinstall the sending unit and secure it with the retaining ring.

3. Check Instrument Cluster Functionality

Tools Required: OBD-II scanner, multimeter.
Sub-steps:
1. Reconnect the battery terminal.
2. Use the OBD-II scanner to check for any stored diagnostic trouble codes (DTCs) related to the instrument cluster.
3. If codes indicate a cluster issue, consider replacing the instrument cluster or reprogramming it per the manufacturer’s instructions.
4. Perform a self-test on the instrument cluster to ensure all gauges are functioning properly.