Where is the ventilation pipe of the Chery A3 engine crankcase connected?

[Wright]

The ventilation pipe of the Chery A3 engine crankcase is connected above the cylinder. Engine Crankcase: The crankcase is the lower part of the cylinder block used to install the crankshaft, divided into the upper crankcase and the lower crankcase. The upper crankcase is cast integrally with the cylinder block, while the lower crankcase is used to store lubricating oil and seal the upper crankcase, hence also known as the oil pan. The oil pan bears minimal force and is generally made of thin steel plate stamping. Its shape depends on the overall layout of the engine and the capacity of the engine oil. Reason for connection to the cylinder: A small amount of combustion exhaust gas enters the crankcase, requiring pressure relief. Directly discharging these gases into the atmosphere would cause pollution. The crankcase forced ventilation primarily controls emissions by reintroducing these gases into the combustion chamber for burning and conversion. There are holes between the cylinder head and the cylinder block, larger than the water channel holes, leading from the cylinder block to the cylinder head, then into the valve cover for oil-gas separation, and finally to the intake pipe for combustion.

[LondonDella]

The location of this ventilation tube on the Chery A3 engine typically extends from the top of the valve cover on the crankcase and connects to a component of the intake system, such as the rear of the air filter or the intake manifold interface. You can see it when you open the hood, usually in the upper left corner of the engine compartment. The tube is a plastic hose secured with clamps. I've repaired several similar models—if the tube cracks or gets clogged, crankcase pressure will rise, leading to oil leaks, unstable engine operation, and increased fuel consumption. So don’t overlook it during routine checks. I recommend replacing the tube every two years, especially in high-temperature environments where it’s prone to aging and deterioration. A new tube is cheap and easy to install yourself—no special tools needed. The process involves removing the old tube, fitting the new one, and tightening the clamps. Just be careful not to damage the connectors. Address any issues promptly to prevent minor problems from becoming major hazards that compromise driving safety.

[LeAmara]

I've been driving a Chery A3 for several years. The engine's ventilation tube connection point is indeed on the valve cover side. The tube is a black or gray flexible hose, usually starting from the outlet on the valve cover and directly connecting to the intake pipe or the side of the air filter. It's quite noticeable in the engine compartment. Last time I checked it myself, if the tube is blocked, the car would shake more noticeably and emit a gasoline smell, likely because the crankcase exhaust can't be discharged and accumulates inside. I generally advise fellow car owners to regularly check the tube's condition to prevent dust or oil buildup from blocking it, which could affect emission control. Replacing it yourself is simple and convenient, with online parts costing just a few dozen yuan. During routine maintenance, using compressed air to blow through it can extend its lifespan and ensure smoother driving.

[AdelynDella]

The ventilation tube in the Chery A3 engine connects the crankcase to the intake system. One end is fixed to the exhaust port of the valve cover, while the other end is typically connected to an interface near the air filter or throttle body, located in the upper part of the engine. This system primarily directs waste gases into the intake for combustion. Poor connections or tube damage can lead to increased oil consumption and potential engine starting difficulties. During inspection, ensure there are no cracks in the tube and that the connections are secure.