GM Service Manual Online
For 1990-2009 cars only

Heater Inlet Hose Replacement Non-HP2

Removal Procedure

  1. Drain the cooling system. Refer to Cooling System Draining and Filling .
  2. Remove the air intake tube.
  3. Remove the heater and surge tank hoses from the mounting clip.

  4. Object Number: 12777  Size: SH
  5. Squeeze the plastic retainer release tabs.

  6. Object Number: 12778  Size: SH
  7. Pull the connection apart.

  8. Object Number: 363237  Size: SH
  9. Remove the inlet heater hose from the water pump.

  10. Object Number: 363118  Size: SH
  11. Remove the inlet heater hose.

Installation Procedure


    Object Number: 363118  Size: SH
  1. Install the inlet heater hose.

  2. Object Number: 363237  Size: SH
  3. Install the inlet heater hose to the water pump.

  4. Object Number: 21855  Size: SH
  5. Connect the heater hose to the heater core.
  6. Important: Firmly push the quick connect onto the heater core pipe until you hear an audible click.

  7. Install the heater and surge tank hoses to the mounting clip.
  8. Install the air intake tube.
  9. Fill the cooling system. Refer to Cooling System Draining and Filling .