* Low oil pressure: The most likely cause. The engine relies on oil pressure to lubricate all moving parts. If the oil level is too low, the pump can't generate sufficient pressure. This leads to insufficient lubrication, causing friction, overheating, and ultimately, engine seizure and stalling. The low oil level light is a direct indicator of this.
* Oil pump failure: The oil pump might have failed, preventing oil from being circulated, even if there's enough oil in the sump. This will lead to immediate low oil pressure and a stalling engine.
* Blocked oil filter or oil passages: A severely clogged oil filter or blocked oil passages within the engine can restrict oil flow, leading to low oil pressure and stalling.
* Oil leak: A significant oil leak could rapidly deplete the oil level, causing low oil pressure and stalling. You might see oil under the car.
* Worn engine bearings: Severely worn engine bearings can increase oil consumption and reduce oil pressure, potentially causing stalling. This is usually a gradual process leading to low oil before a stall.
* Sensor malfunction (less likely): While less probable than the above, a faulty oil pressure sensor could trigger the low oil level light, even if the oil level is adequate. However, if the engine is stalling, this is less likely to be the sole cause.
It's crucial to NEVER restart an engine that has stalled due to a suspected low oil level. Continuing to run the engine without sufficient lubrication will cause catastrophic and expensive internal damage. You should have it towed to a mechanic for diagnosis and repair. Ignoring the problem can lead to a completely destroyed engine.
