why does my Ford Mustang S650 (2024-Present) exhaust smell like gas?

Solution

1. Preparation

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

2. Inspect and Repair Fuel Lines

• Sub-steps:
  1. Visually inspect all fuel lines and connections for wear or leaks.
  2. If a leak is found, replace the damaged section of the fuel line.
  3. Use appropriate clamps to secure the lines and ensure they are properly routed.
• Tools Required: Socket set, wrenches, screwdrivers
• Safety Warnings: Ensure the fuel system is depressurized before working on fuel lines.

3. Clean or Replace Fuel Injectors

• Sub-steps:
  1. Remove the fuel rail and fuel injectors according to the manufacturer’s service manual.
  2. Clean the fuel injectors using a specialized cleaner or replace them if they are clogged or leaking.
  3. Reinstall the fuel injectors and fuel rail, ensuring all seals are intact.
• Tools Required: Injector puller tool, cleaning kit, torque wrench
• Safety Warnings: Wear gloves and safety goggles when handling fuel.

4. Check and Replace O2 Sensors

• Sub-steps:
  1. Identify the upstream and downstream O2 sensors from the service manual.
  2. Disconnect the sensors and use a multimeter to test their functionality.
  3. If faulty, replace the sensors with new ones as per specifications.
• Tools Required: O2 sensor socket, multimeter
• Safety Warnings: Allow the exhaust system to cool before touching O2 sensors.

5. Reset the Engine Control Module (ECM)

• Sub-steps:
  1. Reconnect the battery after all repairs are completed.
  2. Use a scan tool to clear any stored error codes in the ECM.
  3. Start the engine and let it idle to ensure there are no check engine lights.
• Tools Required: OBD-II scanner
• Safety Warnings: Ensure all tools are removed from the engine bay before reconnecting the battery.