how to fix the fuel gauge not working on my Ford F-150 13th Generation (2015-2020)

Ford F-150 13th Generation (2015-2020)

Error Codes

2-4 hours

Time

medium

Difficulty

medium

Severity

3 min read

526 words

Problem Statement

Learn how to diagnose and fix the fuel gauge issue in Ford F-150 (2015-2020). 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 the battery before working on electrical systems.
•Allow the fuel system to depressurize before removing any fuel components.

Symptoms

•Fuel gauge reads empty regardless of fuel level
•Check engine light illuminated
•Inconsistent fuel gauge readings (e.g., fluctuates or jumps)
•Warning message on the dashboard related to fuel system
•Vehicle may experience difficulty starting if low fuel level is misreported

Diagnostic Steps

1
Scan the vehicle for error codes using an OBD-II scanner to identify any related issues.
2
Inspect the fuel sender unit located in the fuel tank for any visible damage or disconnection.
3
Check the wiring and connections leading to the fuel sender unit for corrosion or loose connections.
4
Test the fuel gauge circuit with a multimeter to ensure proper voltage and continuity.
5
Verify the operation of the instrument cluster by performing a cluster test (if applicable).
6
Inspect the fuel tank for any signs of leaks which could indicate a problem with the sender 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
•Socket set
•Multimeter
•Screwdrivers
•Safety goggles

Parts Required

•Fuel sender unit (if faulty)
•Fuel pump assembly gasket (if removed)

Related Faults

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Diagnostic Steps

1
Scan the vehicle for error codes using an OBD-II scanner to identify any related issues.
2
Inspect the fuel sender unit located in the fuel tank for any visible damage or disconnection.
3
Check the wiring and connections leading to the fuel sender unit for corrosion or loose connections.
4
Test the fuel gauge circuit with a multimeter to ensure proper voltage and continuity.
5
Verify the operation of the instrument cluster by performing a cluster test (if applicable).
6
Inspect the fuel tank for any signs of leaks which could indicate a problem with the sender unit.

Solution

1. Preparation

Gather necessary tools and parts.
Disconnect the negative battery terminal to ensure safety while working on electrical systems.

2. Access Fuel Sender Unit

Tools Required: Socket set, screwdrivers, safety goggles.
Instructions:
1. Raise the vehicle securely on jack stands.
2. Remove the fuel tank shield (if equipped) by unscrewing the bolts.
3. Disconnect the fuel lines and electrical connectors from the fuel pump assembly.

3. Remove and Inspect Fuel Sender Unit

Tools Required: Socket set, flathead screwdriver.
Instructions:
1. Unscrew the locking ring holding the fuel pump assembly in place.
2. Carefully lift out the fuel pump assembly, ensuring not to damage the fuel sender.
3. Inspect the fuel sender for corrosion, wear, or damage.

4. Replace Fuel Sender Unit (if faulty)

Tools Required: Replacement fuel sender unit.
Instructions:
1. If the fuel sender is damaged, replace it with a new unit.
2. Reinstall the fuel pump assembly into the tank, ensuring a proper fit.
3. Secure the locking ring and reconnect the fuel lines and electrical connectors.

5. Reassemble and Test

Tools Required: Socket set.
Instructions:
1. Reattach the fuel tank shield (if applicable).
2. Reconnect the negative battery terminal.
3. Start the vehicle and check the operation of the fuel gauge.