Connecting Hoses & Pipes

All crankcase ventilation systems use connecting hoses and pipes to carry crankcase gases, engine vacuum and/or outside air. Hoses and pipes should be checked for clogging and leaks and replaced as necessary.

Fig 1: Crankcase Ventilation System (911 Carrera - Non-Turbo) Crankcase ventilation systems do not use a PCV valve. Courtesy of Porsche of North America, Inc.

Fig 2: Crankcase Ventilation System (911 Turbo) Crankcase ventilation systems do not use a PCV valve. Courtesy of Porsche of North America, Inc.