* Fuel Related Issues:
- Clogged fuel filter.
- Low fuel pressure caused by a faulty fuel pump or clogged fuel line.
- Issues with the fuel injector, causing insufficient fuel delivery to the engine.
- Bad fuel quality or water in the fuel system.
* Electrical Problems:
- Malfunctioning ignition switch.
- Faulty distributor or rotor (in older vehicles with distributor-based ignition systems).
- Issues with the ignition coil or spark plugs, leading to weak or no spark.
* Engine Issues:
- Engine overheating due to coolant leaks or a faulty thermostat.
- Worn-out engine components such as piston rings, causing loss of compression and power.
- Clogged air filter or mass air flow sensor, restricting air intake.
* Transmission Problems:
- Faulty automatic transmission, including issues with the torque converter or transmission control module.
- Slipping clutch in a manual transmission.
* Computer/Sensor Problems:
- Malfunctions in the Engine Control Unit (ECU) or Powertrain Control Module (PCM), affecting engine management.
- Faulty sensors, such as the crankshaft position sensor or camshaft position sensor, providing incorrect data to the ECU.
* Vacuum Leaks:
- Leaks in the vacuum system can lead to lean fuel mixtures and engine stalling.
* Faulty Emissions Equipment:
- Catalytic converter issues or problems with the oxygen sensors can impact engine performance and cause stalling.
* Mechanical Problems:
- Worn-out or broken timing belt or chain, causing misalignment of engine components.
- Issues with the fuel pump relay or fuel pump driver module.