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how can I fix the fuel gauge not working in my Ford F-150? - Ford F-150
Home/Cars/Ford/F-150/13th Generation (2015-2020)/how can I fix the fuel gauge not working in my Ford F-150?

how can I fix the fuel gauge not working in my Ford F-150?

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

Error Codes
2-4 hours
Time
medium
Difficulty
medium
Severity
Navigation
ProblemSymptomsDiagnosisSolution
ProblemSymptomsDiagnosisSolution
3 min read
536 words

Problem Statement

Learn how to diagnose and fix a non-working fuel gauge in your Ford F-150. 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.
  • •Allow the fuel system to depressurize before disconnecting any lines.

Symptoms

  • •Fuel gauge needle remains at empty or does not move
  • •Check engine light illuminated (potentially related)
  • •Inconsistent readings when refueling
  • •Fuel warning light stays on even when tank is full
  • •Erratic movement of the fuel gauge needle

Diagnostic Steps

  1. 1
  2. 2
  3. 3
  4. 4
  5. 5
  6. 6

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
  • •Torque wrench
  • •Fuel line disconnect tool

Parts Required

  • •Fuel sending unit (if faulty)
  • •Fuse (if blown)

Additional Information

Affected Component
Fuel System
Estimated Time
2-4 hours
Difficulty
medium
Severity
medium
Tools Required
5 items
Parts Required
2 items

Related Faults

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Solution
1. Preparation
  • Gather necessary tools and parts.
  • Disconnect the battery to ensure safety during repairs.
2. Inspect and Replace the Fuse
  1. Locate the fuse box, typically under the dashboard or in the engine compartment.
  2. Identify the fuse related to the fuel gauge (refer to the owner’s manual for the exact location).
  3. Remove the fuse with a fuse puller or pliers.
  4. Inspect the fuse for continuity; replace if blown.
  5. Reinstall the new fuse and reconnect the battery.
3. Access the Fuel Sending Unit
  1. Raise the vehicle safely using a jack and secure it with jack stands.
  2. Remove the fuel tank by disconnecting the fuel lines and electrical connectors carefully.
  3. Unbolt the fuel tank straps and lower the tank to access the fuel sending unit.
4. Test and Replace the Fuel Sending Unit
  1. Disconnect the wiring harness from the fuel sending unit.
  2. Use a multimeter to measure resistance across the sending unit terminals to confirm it is functioning properly (typically between 0-90 ohms).
  3. If the resistance is outside this range, replace the fuel sending unit.
  4. To replace, unbolt the sending unit from the tank and install the new unit, ensuring proper sealing.
5. Reassemble and Test
  1. Reinstall the fuel tank and secure it with straps.
  2. Reconnect the fuel lines and electrical connectors.
  3. Lower the vehicle and reconnect the battery.
  4. Turn the ignition on (do not start the engine) to check if the fuel gauge is functioning correctly.