GM Service Manual Online
For 1990-2009 cars only

Removal Procedure


    Object Number: 933795  Size: SH
  1. Disconnect the negative battery cable.
  2. Drain the coolant. Refer to Cooling System Draining and Filling .
  3. Remove the battery box/UHFB assembly. Refer to Battery Box Replacement .
  4. Remove the coolant hose clamps and hoses from the coolant intake housing.
  5. Remove the lower radiator hose assembly from the coolant housing.

  6. Object Number: 894858  Size: SH
  7. Remove the coolant intake housing bolts.
  8. Remove the intake coolant housing and O-ring seal from the engine.
  9. Remove debris from the block mating surfaces.

Installation Procedure


    Object Number: 894858  Size: SH
  1. Install the O-ring seal to housing assembly.
  2. Install the coolant intake housing and O-ring seal to the engine.
  3. Notice: Refer to Fastener Notice in the Preface section.

  4. Install the coolant intake housing bolts and tighten.
  5. Tighten
    Tighten the coolant intake housing bolts to 20 N·m (15 lb ft).


    Object Number: 933795  Size: SH
  6. Install the lower radiator hose to coolant housing.
  7. Install the coolant pump hoses and clamps to the intake coolant housing.
  8. Install the battery box/UHFB assembly. Refer to Battery Box Replacement .
  9. Connect the negative battery cable.
  10. Tighten
    Tighten the battery terminal bolt to 17 N·m (13 lb ft).

  11. Fill the cooling system. Refer to Cooling System Draining and Filling .