Why does the oil pressure light come on in a 1993 240 Volvo when you shut the car off The light is off when the car is running and the oil level is OK?

The oil pressure light in a 1993 Volvo 240 may illuminate when the car is shut off due to the residual oil pressure dropping as the engine stops. When the engine is running, the oil pump circulates oil effectively, maintaining pressure, but once the engine shuts down, the pressure can quickly fall, triggering the light. Additionally, this could indicate a potential issue with the oil pressure sending unit or gauge, which may need to be checked for proper function. If the light consistently comes on after turning off the car, it’s generally not a cause for concern, but it’s good practice to monitor oil levels and pressure regularly.