GM Service Manual Online
For 1990-2009 cars only

Removal Procedure


    Object Number: 1578329  Size: SH
  1. Remove the intake manifold cover. Refer to Intake Manifold Cover Replacement .
  2. Drain the cooling system. Refer to Cooling System Draining and Filling .
  3. Reposition the surge tank outlet hose clamps at the thermostat housing and oil cooler.
  4. Remove the surge tank outlet hose from the thermostat housing and oil cooler.

  5. Object Number: 1578327  Size: SH
  6. Reposition the radiator outlet hose clamp at the oil cooler.
  7. Remove the radiator outlet hose from the oil cooler.

  8. Object Number: 1578314  Size: SH
  9. Remove the oil cooler bolts.
  10. Remove the oil cooler.

Installation Procedure

    Notice: Refer to Fastener Notice in the Preface section.


    Object Number: 1578314  Size: SH
  1. Position the oil cooler to the engine block.
  2. Install the oil cooler bolts.
  3. Tighten
    Tighten the bolts to 22 N·m (16 lb ft).


    Object Number: 1578327  Size: SH
  4. Install the radiator outlet hose to the oil cooler.
  5. Position the radiator outlet hose clamp at the oil cooler.

  6. Object Number: 1578329  Size: SH
  7. Install the surge tank outlet hose to the thermostat housing and oil cooler.
  8. Position the surge tank outlet hose clamps at the thermostat housing and oil cooler.
  9. Fill the cooling system. Refer to Cooling System Draining and Filling .
  10. Install the intake manifold cover. Refer to Intake Manifold Cover Replacement .