why does my Ford F-150 14th Generation (2021-2024) engine hesitates when accelerating

Solution

1. Preparation

• Gather tools and parts needed for the repair.
• Disconnect the negative battery terminal to ensure safety during work.
• Allow the engine to cool completely before starting.

2. Fuel System Inspection

• Check Fuel Pressure:

  • Connect the fuel pressure gauge to the fuel rail service port.
  • Start the engine and observe the fuel pressure reading; it should match the manufacturer's specifications (typically 50-60 psi for F-150).
  • If pressure is low, inspect the fuel pump, fuel filter, and fuel lines for blockages or failures.

• Replace Fuel Filter (if necessary):

  • Locate the fuel filter, usually along the fuel line under the vehicle.
  • Relieve fuel system pressure by removing the fuel pump fuse and running the engine until it stalls.
  • Disconnect the fuel lines and remove the old filter.
  • Install the new filter in the correct orientation and reconnect the fuel lines.

3. Ignition System Maintenance

• Inspect and Replace Spark Plugs:
  • Remove the ignition coils using a socket set.
  • Extract the spark plugs using a spark plug socket; inspect for wear or damage.
  • Replace with new spark plugs that meet OEM specifications, torqueing to the recommended value (typically 13-15 ft-lbs).

4. Throttle Body Cleaning

• Clean Throttle Body:
  • Remove the air intake duct to access the throttle body.
  • Use throttle body cleaner and a soft brush to clean carbon deposits from the throttle plate and housing.
  • Reassemble the intake duct securely.

5. MAF Sensor Cleaning

• Clean MAF Sensor:
  • Disconnect the MAF sensor connector and remove the sensor from the air intake.
  • Spray MAF sensor cleaner onto the sensor elements without touching them.
  • Allow the sensor to dry completely before reinstalling.