GM Service Manual Online
For 1990-2009 cars only

    Object Number: 648752  Size: SH
  1. Install the oil pump with the chain on the sprocket and secure with the 3 bolts verifying the long bolt (3) is in the proper location.
  2. Tighten
    Tighten the bolts to 27 N·m (19.5 lb ft).


    Object Number: 648576  Size: SH
  3. Push the center of the oil pump chain guide with a force of 0.5-0.6 N (0.11-0.13 lb) and secure the guide with the 2 bolts (1).
  4. Tighten
    Tighten the 2 bolts to 11 N·m (7.5 lb ft).