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. Remove the transmission. Refer to Transmission Replacement .
  3. Remove the generator. Refer to Generator Replacement .
  4. Using the J 38185 disconnect the outlet hose from the heater core outlet tube.
  5. Remove the heater outlet hose from the heater core.

  6. Object Number: 735779  Size: SH
  7. Position the outlet heater hose clamp (6) at the water pump using J 38185 .
  8. Remove the heater outlet hose (7) from the outlet hose fitting.
  9. Remove the heater outlet hose.

Installation Procedure


    Object Number: 735779  Size: SH
  1. Install the outlet heater hose.
  2. Install the heater outlet hose (7) to the outlet hose fitting.
  3. Position the outlet heater hose clamp (6) at the outlet hose fitting using J 38185 .
  4. Install the heater outlet hose to the heater core.
  5. Position the outlet heater hose clamp at the heater core using J 38185 .
  6. Install the transmission. Refer to Transmission Replacement .
  7. Install the generator. Refer to Generator Replacement .
  8. Fill the cooling system. Refer to Cooling System Draining and Filling .