- Fuel Pump Failure: A failing fuel pump can cause the engine to lose power and eventually stall. Try turning the key to the "ON" (or even "START") position without cranking the engine; your fuel pump should run for about 2 seconds before shutting off. If you can't hear the pump, it may be faulty and require replacement.
- Clogged Fuel Filter: A clogged fuel filter can limit fuel flow to the engine, causing it to cut out. This happens mostly with older fuel pumps. Try replacing it with a new filter and see if the problem persists.
- Defective Ignition System Components: Faulty spark plugs, ignition coils, or a worn distributor cap and rotor can cause the engine to cut out while driving.
- MAF (Mass Airflow) Sensor Malfunction: A malfunctioning MAF sensor can provide incorrect air-fuel mixture data, leading to a rough running engine and potential stalling.
- Crankshaft Position Sensor Failure: A faulty crankshaft position sensor can prevent the engine from receiving timing signals, resulting in a stalling engine.
- Electrical Issues: Loose or damaged electrical connections, worn wiring, or a malfunctioning ignition switch can all cause the engine to cut out.
- Engine Overheating: Extreme engine temperatures can cause various issues, including engine stalling. Check your temperature gauge or coolant levels if the car is overheating.
- Transmission Problems: In rare cases, transmission issues can cause the car to cut out and not restart while driving. This is more common in automatic transmission vehicles.
Note: In some cases, specific diagnostic codes can help identify the exact problem. If resetting the car does not work, it's best to get it professionally diagnosed and repaired.
