GM Service Manual Online
For 1990-2009 cars only

Removal Procedure


    Object Number: 1327497  Size: SH
  1. Drain the cooling system. Refer to Cooling System Draining and Filling in Engine Cooling.
  2. Remove the heater inlet hose clamp from the heater core.
  3. Remove the heater inlet hose from the heater core.

  4. Object Number: 1327499  Size: SH
  5. Remove the heater inlet hose clamp from the engine.
  6. Remove the heater inlet hose from the engine.
  7. Remove the heater inlet hose from the vehicle.

Installation Procedure


    Object Number: 1327499  Size: SH
  1. Install the heater inlet hose to the vehicle.
  2. Install the heater inlet hose to the engine.
  3. Install the heater inlet hose hose to the engine.

  4. Object Number: 1327497  Size: SH
  5. Install the heater inlet hose to the heater core.
  6. Install the heater inlet hose clamp to the heater core.
  7. Fill the cooling system. Refer to Cooling System Draining and Filling in Engine Cooling.