GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2001 🢒 Astro - 4WD 🢒 HVAC 🢒 Heating, Ventilation and Air Conditioning 🢒 Auxiliary Heater Pipe Replacement - Rear

Removal Procedure
  1. Drain the engine coolant. Refer to Cooling System Draining and Filling in Engine Cooling.
  2. Raise the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.

    3. Object Number: 280252 Size: SH
  3. Disconnect the auxiliary heater rear pipes from the heater core inlet and outlet tubes.
  4. Disconnect the auxiliary heater rear pipes from the front pipes.
  5. Remove the pipe retainers from the body.
  6. Remove the auxiliary heater rear pipes.

Installation Procedure
  1. Install the auxiliary heater rear pipes.
  2. Install the pipe retainers to the body.

    3. Object Number: 280252 Size: SH
  3. Connect the auxiliary heater rear pipes to the front pipes.
  4. Connect the rear pipes to the auxiliary heater core inlet and outlet tubes.
  5. Refill the cooling system with engine coolant. Refer to Cooling System Draining and Filling in Engine Cooling.
  6. Lower the vehicle.