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why is my Ford F-150's gas gauge not working correctly - Ford F-150
Home/Cars/Ford/F-150/13th Generation (2015-2020)/why is my Ford F-150's gas gauge not working correctly

why is my Ford F-150's gas gauge not working correctly

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

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

Problem Statement

Learn how to diagnose and fix fuel gauge issues in Ford F-150. 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 servicing.
  • •Use proper lifting techniques and equipment when handling the fuel tank.

Symptoms

  • •Fuel gauge fluctuates or remains at empty despite having fuel in the tank
  • •Check engine light may be illuminated
  • •Inconsistent fuel level readings during driving
  • •Fuel warning light activates prematurely
  • •Possible clicking sound from the fuel tank area

Diagnostic Steps

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

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
  • •Fuel tank locking ring tool
  • •Jack and jack stands

Parts Required

  • •Fuel level sending unit (if faulty)
  • •New fuel tank straps (if damaged)

Additional Information

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

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Solution
1. Preparation
  • Gather all necessary tools and parts.
  • Disconnect the vehicle's battery to prevent electrical shock.
  • Relieve fuel system pressure by removing the fuel pump relay and starting the engine until it stalls.
2. Remove the Fuel Tank
  • Safely lift the vehicle using a jack and secure it with jack stands.
  • Remove the fuel tank straps using a socket wrench.
  • Carefully lower the fuel tank to access the fuel level sending unit.
3. Inspect and Replace the Fuel Level Sending Unit
  • Locate the fuel level sending unit at the top of the fuel tank.
  • Disconnect the electrical connector from the sending unit.
  • Remove the locking ring using a specialized tool or a flathead screwdriver.
  • Carefully lift the sending unit out of the tank.
  • Inspect the old sending unit for wear or damage; replace it if necessary.
  • Install the new sending unit by reversing the removal steps, ensuring it is seated properly.
4. Reinstall the Fuel Tank
  • Position the fuel tank back under the vehicle.
  • Reattach the fuel tank straps and tighten to manufacturer specifications.
  • Reconnect the fuel pump relay and battery.
5. Test the System
  • Start the vehicle and check the fuel gauge for proper operation.
  • Monitor for leaks around the fuel tank and sending unit.