Reasons for the Engine Oil Pressure Warning Light to Illuminate
1 Answers
The engine oil pressure warning light is an alert indicator for engine oil. When illuminated, it signifies that the oil level and pressure are below standard values. The reasons for the engine oil pressure warning light to illuminate are as follows: 1. Insufficient engine oil volume can reduce the oil pump's output or prevent it from pumping oil due to air ingress, leading to a drop in oil pressure. This results in increased wear on the crankshaft and bearings, as well as the cylinder liners and pistons due to inadequate lubrication. 2. Oil pump failure occurs when the drive gear's key or the drive shaft's key is damaged or disengaged, or when the oil strainer is damaged, allowing debris to enter and jam the pump gears, stopping the pump and reducing oil pressure to zero. In such cases, the damaged key or strainer should be replaced. 3. Oil pump wear, where excessive clearance between the pump shaft and bushing, gear end face and pump cover, or gear side and radial clearance due to wear, reduces oil output and lowers oil pressure. 4. Overheating of the engine, caused by excessive scale in the cooling system, poor heat dissipation, prolonged overload operation, or delayed fuel injection timing, accelerates oil degradation, thinning, and leakage through clearances, reducing pressure. To address this, remove scale, adjust fuel injection timing, and ensure the engine operates within its rated load capacity.
