What Causes Oil Leakage from the Under-Exhaust of a Truck?

1 Answers
OElena
07/29/25 3:33pm
Truck under-exhaust oil leakage is caused by damage to the engine's crankcase forced ventilation system. When this occurs, it is essential to replace the crankcase forced ventilation system immediately. Failure to repair it promptly can lead to more severe vehicle malfunctions. Here is a relevant introduction: All automotive engines are equipped with a crankcase forced ventilation system. When the car engine is running, some high-temperature and high-pressure gases will enter the crankcase through the piston rings. If these gases in the crankcase are not discharged in time, the crankcase pressure will become too high, affecting the crankcase's sealing performance and hindering the downward movement of the piston.
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