GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Pontiac 🢒 1998 🢒 Firebird 🢒 Engine 🢒 Engine Controls - 3.8L 🢒 Crankcase Ventilation System Inspection

Removal Procedure

    Object Number: 21764 Size: SH
  1. While holding down the PCV Valve cover, remove the two (2) cover retaining bolts.
  2. Remove the PCV Valve cover.
  3. Remove the PCV Valve, spring, and O-ring.

Installation Procedure

    Object Number: 21764 Size: SH
  1. Install the PCV Valve, spring, and O-ring.

    2. Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

  2. Position the PCV Valve cover (use a new gasket if necessary) and hand start the two (2) cover retaining bolts.

    3. Tighten
    Tighten the 2 cover retaining bolts to 12 N·m (106 lb-in.).