What is the reason for the car's genie lamp lighting up?
2 Answers
The genie lamp symbol is the oil pressure warning light, which serves as an indicator to check the car's oil level. Below are the relevant introduction and problem description of the oil pressure warning light: 1. Oil pressure warning light: The oil pressure warning light is used to display the oil pressure condition inside the engine. It is red in color and monitored via a pressure switch installed on the engine lubrication system's oil passage. 2. Reasons for lighting up: (1) Insufficient oil: A low oil level reduces the oil pump's output or prevents it from pumping oil due to air intake, leading to a drop in oil pressure. This insufficient lubrication causes increased wear on the crankshaft and bearings, as well as the cylinder liners and pistons. (2) Engine temperature too high: Excessive engine temperature accelerates the aging, deterioration, and thinning of the oil. This results in oil leakage through the gaps between components, lowering the pressure and triggering the oil warning light.
As an experienced driver, I often see the 'check engine' light come on, which indicates an engine fault. It usually signals an issue with the emission system, such as a failing oxygen sensor or an air intake system leak. I remember once on a long trip, the light suddenly came on, and after checking, it turned out to be just a loose fuel cap—tightening it made the light go off. However, if accompanied by reduced power or abnormal fuel consumption, it could indicate spark plug failure or a clogged catalytic converter. These minor issues can accumulate and affect engine longevity, increasing repair costs. I recommend first using an onboard diagnostic tool to read the trouble codes to identify the cause and then getting it fixed promptly. For safety, avoid prolonged high-speed driving when the light is on to prevent potential breakdowns.
