my Ford Mustang S650 (2024-Present) is stalling at red lights, what should I check?

Solution

1. Preparation

• Gather tools and parts needed for the repair.
• Disconnect the negative battery cable to prevent electrical shorts.
• Ensure the engine is cool before starting work.

2. Clean Throttle Body

• Remove the air intake duct to access the throttle body.
• Use throttle body cleaner and a soft cloth to clean the interior of the throttle body.
• Inspect the throttle plate for free movement and absence of carbon buildup.

3. Inspect and Clean IAC

• Locate the idle air control valve, typically found on or near the throttle body.
• Remove the IAC valve using a socket set.
• Clean the valve with throttle body cleaner and a soft brush if necessary.
• Reinstall the IAC valve and torque to manufacturer specifications.

4. Test and Replace Fuel Filter (if necessary)

• Locate the fuel filter and check for clogs or restrictions.
• If clogged, relieve fuel pressure from the system, disconnect the fuel lines, and remove the old filter.
• Install a new fuel filter, ensuring the flow direction is correct.

5. Check Battery and Charging System

• Use a multimeter to check battery voltage; it should be around 12.6 volts when fully charged.
• Start the engine and check voltage again; it should be between 13.7 to 14.7 volts if the charging system is functioning properly.
• If voltage is low, consider replacing the battery or alternator.