why does my Ford Mustang S550 (2015-2023) feel sluggish on the highway

Solution

1. Preparation

• Gather tools: OBD-II scanner, fuel pressure gauge, socket set, torque wrench, cleaning supplies.
• Ensure the vehicle is parked on a level surface and the engine is cool.

2. Clean or Replace Air Filter

• Remove the air filter cover using a socket set.
• Inspect the air filter; if dirty, clean it or replace it with a new one.
• Reinstall the air filter cover, tightening screws to factory specifications.

3. Fuel System Inspection

• Connect the fuel pressure gauge to the fuel rail.
• Turn the ignition to the "ON" position without starting the engine to check fuel pressure.
• If the pressure is below specifications, replace the fuel pump.
• Reconnect the fuel line and ensure there are no leaks.

4. Throttle Body Cleaning

• Disconnect the negative battery terminal for safety.
• Remove the intake duct to access the throttle body.
• Use throttle body cleaner and a soft cloth to clean the throttle body inside and out.
• Reinstall the intake duct and reconnect the battery.

5. Inspect and Replace Ignition Components

• Remove the ignition coil packs using a socket set.
• Check spark plugs for wear; replace if necessary (recommended gap: 0.028-0.031 inches).
• Reinstall ignition coil packs, ensuring they are seated properly.

6. Exhaust System Check

• Visually inspect the exhaust system for any visible damage or blockages.
• If damage is found, replace the affected section of the exhaust.