GM Service Manual Online
For 1990-2009 cars only

    Object Number: 262520  Size: SH
  1. Install the new valve cover gasket to the valve cover (1).
  2. Install the four spark plug hole seals to the valve cover.
  3. Install the cylinder head cover to the cylinder head.
  4. 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.

  5. Secure the cylinder head cover with the new seal washers and the nuts.
  6. Tighten
    Tighten the cylinder head cover nuts to 11 N·m (8 lb in).