GM Service Manual Online
For 1990-2009 cars only

    Object Number: 49472  Size: SH
  1. Inspect the control valve body cover (53) for the following conditions:
  2. • Damaged or porous gasket sealing surfaces
    • Damaged or porous casting surfaces
    • Damaged or stripped bolt holes
  3. Inspect the control valve body gaskets (54, 59) for damage. The gaskets are reusable if they are NOT damaged.

  4. Object Number: 48208  Size: SH
  5. Assemble the cover inner gasket (59) to the cover (53). Use an assembly lubricant.
  6. Assemble the cover gasket (54) and cover (53) onto the case. Make sure the gaskets and electrical connector are positioned correctly.

  7. Object Number: 49480  Size: SH
  8. Install two flange bolts (56) in the locations shown. These bolts will properly locate the cover and gasket to the case.
  9. Install the remaining bolts as indicated:
  10. • Nine remaining flange bolts (56)
    • Four TORX bolts (57)
    • Two stud bolts (58)

    Tighten
    Tighten all bolts to 25 N·m (18 lb ft).

    • Refer to Fastener Notice .