How do you replace crankcase ventilation separator?

To replace a crankcase ventilation separator, first, ensure the engine is off and cool. Disconnect the battery, then remove any components obstructing access to the separator, such as hoses or engine covers. Carefully detach the old separator from its mounting, clean the area, and install the new separator, ensuring it is securely fastened. Finally, reconnect any removed components, reconnect the battery, and start the engine to check for proper operation.