GM Service Manual Online
For 1990-2009 cars only

Tools Required

J 38185 Hose Clamp Pliers

Removal Procedure

  1. Drain the cooling system. Refer to Cooling System Draining and Filling .

  2. Object Number: 1222591  Size: SH
  3. Position the J 38185 to the clamp (8) in order to remove the radiator outlet hose (7) from the water outlet housing.
  4. Remove the power steering pump bracket. Refer to Power Steering Pump Bracket Replacement in Power Steering System.

  5. Object Number: 637653  Size: SH
  6. Remove the water outlet housing bolts.
  7. Remove the water outlet housing from the cylinder head.
  8. Clean and inspect the water outlet housing.
  9. Clean and inspect the sealing surface of the cylinder head.

Installation Procedure


    Object Number: 637653  Size: SH
  1. Position the water outlet housing to the cylinder head.
  2. Notice: Refer to Fastener Notice in the Preface section.

  3. Install the water outlet housing bolts.
  4. Tighten
    Tighten the water outlet housing bolts to 10 N·m (89 lb in).

  5. Install the power steering pump bracket. Refer to Power Steering Pump Bracket Replacement in Power Steering System.

  6. Object Number: 1222591  Size: SH
  7. Position the J 38185 to the clamp (8) in order to connect the radiator outlet hose (7) to the water outlet housing.
  8. Fill the cooling system. Refer to Cooling System Draining and Filling .
  9. Inspect all sealing surfaces for leaks after starting the engine.