Should I Repair a Slightly Leaking Car Driveshaft?

[MacSophie]

Car driveshaft oil leakage requires repair. Below are specific details about driveshaft oil leakage: External Inspection: Check whether the oil seals at the front and rear ends of the crankshaft are leaking. A cracked, damaged, or aged front crankshaft oil seal, or wear on the contact surface between the crankshaft pulley and the oil seal, can cause front crankshaft oil leakage. A cracked or damaged rear crankshaft oil seal, or an excessively small oil return hole in the rear main bearing cap obstructing oil return, can cause rear crankshaft oil leakage. Additionally, check whether the camshaft rear oil seal is leaking. If the oil seal is aged or cracked, it should be replaced promptly. Crankcase Inspection: If oil is leaking from the front or rear oil seals but no obvious leak source is found, inspect the crankcase ventilation system. Clean the crankcase ventilation pipes, especially checking whether the PCV valve is malfunctioning due to carbon buildup and gumming. Poor crankcase ventilation can significantly increase crankcase pressure, leading to multiple oil seepage points. Oil Pressure Inspection: If oil continues to leak from the oil filter or some oil pipe joints after tightening, check whether the oil pressure is too high and whether the oil pressure relief valve is malfunctioning.