GM Service Manual Online
For 1990-2009 cars only
  1. Clean the engine oil cooler to the oil filter housing sealing surfaces.
  2. Install a NEW gasket.

  3. Object Number: 2026831  Size: SH
  4. Install the engine oil cooler (1) to the engine oil cooler housing.
  5. Caution: Refer to Fastener Caution in the Preface section.

  6. Install the 6 engine oil cooler bolts (2) and tighten to  XXX N·m (XXX lb in).
  7. Clean the engine oil cooler housing to thermostat housing sealing surfaces.
  8. Install 2 NEW gaskets.

  9. Object Number: 2026867  Size: SH
  10. Install the engine oil cooler housing (1) and the 5 engine oil cooler bolts (2) and tighten to  25 N·m (19 lb ft).

  11. Object Number: 2026830  Size: SH
  12. Install the thermostat housing coolant pipe (2) to the engine oil cooler housing.
  13. Install the 2 thermostat housing coolant pipe bolts (1) and tighten to  8 N·m (71 lb in).