GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Cadillac 🢒 2005 🢒 CTS 🢒 Engine 🢒 Engine Mechanical - 2.8L (LP1) 🢒 Oil Pump Assemble

    Object Number: 902928 Size: SH

    Important: 

       • There are no serviceable components within the oil pump. Disassemble the pump only to diagnose an oiling concern. A disassembled oil pump must be replaced. DO NOT reuse a disassembled oil pump or a serviceable oil pump with a primary camshaft drive chain lower guide that needs to be replaced.
       • The primary camshaft drive chain lower guide is not a serviceable component. If the primary camshaft drive chain lower guide must be replaced, the oil pump must be replaced.

  1. The dimpled surface must be face-up in the pump body.

    2. Object Number: 902922 Size: SH
  2. Install the inner and the outer rotors in the pump cover in the same orientation as removed.
  3. The outer rotor has a dimple to indicate the outer surface.

    4. Object Number: 902921 Size: SH
  4. Assemble the housing and cover.

    5. Notice: Refer to Fastener Notice in the Preface section.

  5. Install the bolts.

    6. Tighten
    Tighten the bolts to 10 N·m (89 lb in).