What Are the Causes of Unstable Oil Pressure?

[DiZoe]

Reasons for unstable oil pressure: 1. The oil pump sucks in air; 2. Insufficient oil suction by the oil pump: The strainer mesh is clogged with impurities, the filter is incorrectly installed and cannot fully immerse in the oil, or the oil viscosity is too high, all of which can cause insufficient oil suction by the pump; 3. The relief valve fails to operate properly: If the spring of the relief valve is severely corroded, the valve seat is unevenly worn, the spring is broken or severely deformed, the valve core may stick and cannot open or close responsively with pressure changes. Normal oil pressure in the engine is a prerequisite and necessary condition to ensure that all friction components are adequately and properly lubricated. Once low oil pressure is detected, the vehicle should be stopped to identify and resolve the issue before continuing to drive. Otherwise, it can easily lead to bearing seizure due to insufficient oil pressure, and in more severe cases, the engine may be rendered irreparable.