why does my Ford Mustang S650 (2024-Present) hesitate during acceleration?

Solution

1. Preparation

• Gather necessary tools and parts.
• Ensure the vehicle is parked on a level surface and the engine is cool.
• Disconnect the battery to prevent electrical shorts.

2. Inspect and Replace Fuel System Components

• Inspect Fuel Pressure:
  • Connect a fuel pressure gauge to the fuel rail.
  • Turn the ignition to the "ON" position without starting the engine to check fuel pressure.
  • Compare the reading to manufacturer specifications.
• Replace Fuel Filter (if applicable):
  • Locate the fuel filter and relieve fuel pressure by removing the fuel pump relay and starting the engine until it stalls.
  • Disconnect the fuel lines and remove the old filter.
  • Install the new filter, ensuring correct orientation.

3. Clean or Replace Air Intake Components

• Clean Air Filter:
  • Remove the air filter housing cover and take out the air filter.
  • Inspect for dirt and debris; replace it if necessary.
• Inspect Throttle Body:
  • Remove the intake duct from the throttle body.
  • Use throttle body cleaner and a soft cloth to clean the throttle plate and housing.

4. Inspect and Replace Ignition Components

• Check Spark Plugs:
  • Remove each spark plug using a socket and ratchet.
  • Inspect for wear or carbon buildup; replace if necessary.
  • Torque new spark plugs to manufacturer specifications.
• Inspect Ignition Coils:
  • Disconnect the electrical connectors and remove the ignition coils.
  • Check for damage and replace faulty coils with new ones.

5. Test and Replace Throttle Position Sensor (if needed)

• Testing:
  • Use a multimeter to check TPS voltage output at idle and full throttle.
  • Compare readings to specifications; replace if out of range.
• Replacement:
  • Disconnect the battery and remove the old TPS.
  • Install the new TPS and reconnect the battery.