why is my Ford F-150 using more fuel than usual

Solution

1. Preparation

• Tools Required: OBD-II scanner, fuel pressure gauge, socket set, tire pressure gauge
• Ensure the vehicle is parked on a level surface and the engine is cool.
• Disconnect the battery to reset the engine control unit (ECU) if error codes are cleared.

2. Fuel System Inspection

• Sub-steps:
  • Fuel Pressure Test: Connect the fuel pressure gauge to the fuel rail and turn the ignition to the "ON" position without starting the engine. Note the pressure reading and compare it to specifications.
  • Injectors Check: Remove the fuel injector connectors and inspect for leaks or signs of wear. If faulty, replace the injectors.

3. Air Intake System Clean-Up

• Sub-steps:
  • Remove the air filter and inspect it for dirt and blockages. Replace if necessary.
  • Clean the throttle body using throttle body cleaner to remove carbon buildup.

4. Spark Plug Service

• Sub-steps:
  • Remove the spark plugs using a socket wrench. Inspect for wear or carbon buildup.
  • Replace with new spark plugs that meet OEM specifications and torque to the manufacturer’s specified value.

5. Tire Pressure and Condition Check

• Sub-steps:
  • Use a tire pressure gauge to check each tire’s pressure. Inflate to the recommended PSI as per the owner's manual.
  • Inspect tires for uneven wear or damage and replace if necessary.