GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Buick 🢒 2006 🢒 Terraza Ext. 🢒 Engine 🢒 Engine Mechanical - 3.5L 🢒 Positive Crankcase Ventilation Valve Replacement

Removal Procedure

    Object Number: 54369 Size: SH

    Important: The positive crankcase ventilation (PCV) valve is not removable from the valve rocker arm cover. The PCV valve and rocker arm cover must be replaced as an assembly.

  1. Remove the left valve rocker arm cover. Refer to Valve Rocker Arm Cover Replacement - Left Side .

    2. Important: If the PCV valve is not defective it may be possible to clean the valve rather than replacing the rocker arm cover.


    Object Number: 1456046 Size: SH
  2. Remove the PCV baffle.
    3. 2.1. Remove the screws (1) from the PCV baffle.
    2.2. Clean the PCV valve (3).
  3. If the PCV valve is defective or cannot be effectively cleaned the valve cover (4) must be replaced.

Installation Procedure

    Notice: Refer to Fastener Notice in the Preface section.


    Object Number: 1456046 Size: SH
  1. If the PCV valve was cleaned:
    2. 1.1. Install the PCV baffle (2).
    1.2. Install the PCV baffle screws (1).

    Tighten
    Tighten the screws to 6 N·m (53 lb in).


    Object Number: 54369 Size: SH
  2. Install the left valve rocker arm cover. Refer to Valve Rocker Arm Cover Replacement - Left Side .