GM Service Manual Online
For 1990-2009 cars only

Heater Inlet Hose Replacement LNJ

Removal Procedure


    Object Number: 1646757  Size: SH
  1. Drain the cooling system. Refer to Cooling System Draining and Filling .
  2. Remove the heater inlet hose clamp from the heater core.
  3. Remove the heater inlet hose (2) from the heater core.

  4. Object Number: 1646756  Size: SH
  5. Remove the heater inlet hose clamp from the engine.
  6. Remove the heater inlet hose (2) from the engine.
  7. Remove the heater inlet hose (2) from the vehicle.

Installation Procedure


    Object Number: 1646756  Size: SH
  1. Install the heater inlet hose (2) to the vehicle.
  2. Install the heater inlet hose (2) to the engine.
  3. Install the heater inlet hose clamp to the engine.

  4. Object Number: 1646757  Size: SH
  5. Install the heater inlet hose (2) 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 .