Removal
1. Disconnect the hose from the positive crankcase ventilation valve. Remove the valve from the cylinder head cover and connect it to the crankcase ventilation hose.
2. Run the engine at idle speed, cover the valve hole with your finger and make sure that you can feel the vacuum created in the intake manifold.
Note: The valve plunger must perform a reciprocating motion.
3. If vacuum is not felt, clean the crankcase ventilation valve and hose or replace them.
The publication is borrowed from the website: www.hyundaibook.ru
Examination
1. Remove the positive crankcase ventilation valve.
2. To check the plunger movement, insert a thin steel rod from the threaded side of the valve.
3. If the plunger does not move, the valve is clogged and needs to be cleaned or replaced.
Schematic diagram of the exhaust gas toxicity reduction and fuel vapor recovery system for vehicles without on-board diagnostics
Installation
Install the crankcase ventilation valve and tighten it to the specified torque.
Tightening torque: 8–12 Nm.