What Happens When Engine Air Pump Leaks Oil?

[Dante]

Engine air pump oil leakage can cause certain hazards. Hazards caused by engine air pump oil leakage: Oil leakage from the air pump leads to excessive carbon deposits on the valve plates, causing valve plate failure; oil leakage results in sludge buildup in the air pipes, leading to air passage blockage and reduced airflow; when the air pump leaks oil, the oil enters the vehicle's air reservoir, and during braking, the oil flows into the brake valve. Over time, this causes the rubber seals in the valve to expand and loosen, leading to brake control failure. Additionally, the oil can affect the brake hoses, compromising driving safety. Causes of engine air pump oil leakage: The air pump itself may have sand holes in the cylinder head, loose valve plate screws, or a ruptured cylinder gasket; air leaks in the piping system prevent the air pump from building pressure; damaged pump valves render the air pump unable to generate pressure.