- Vacuum Leaks: A vacuum leak can cause the engine to run lean and rough, leading to stalling. Check for any loose or cracked hoses in the vacuum system.
- Fuel Pressure Issues: Low fuel pressure can cause the engine to stall. Check the fuel pressure regulator and fuel pump to ensure they are functioning correctly.
- Idle Air Control Valve (IACV): A faulty IACV can cause the engine to idle erratically and stall. Clean or replace the IACV as needed.
- Clogged Fuel Filter: A clogged fuel filter can restrict fuel flow and cause the engine to stall. Replace the fuel filter if it is dirty or clogged.
- Faulty Ignition System: Worn-out spark plugs, faulty ignition coils, or damaged spark plug wires can cause misfires and stalling. Check and replace any faulty ignition system components.
- Dirty Throttle Body: A dirty throttle body can cause airflow issues and lead to stalling. Clean the throttle body to remove any accumulated carbon or debris.
- Faulty Oxygen Sensor: A faulty oxygen sensor can provide incorrect feedback to the engine control unit (ECU), resulting in rough idling and stalling. Test the oxygen sensor to ensure it is functioning correctly.
- Mass Air Flow (MAF) Sensor: A faulty MAF sensor can provide incorrect air flow readings to the ECU, leading to improper fuel mixture and stalling. Clean or replace the MAF sensor if necessary.
- Catalytic Converter: A clogged or damaged catalytic converter can restrict exhaust flow and cause the engine to stall. Have the catalytic converter inspected to determine if replacement is necessary.
