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 vacuum control solenoid valve. Refer to Secondary Air Injection Vacuum Control Solenoid Valve Replacement in Engine Controls.
  3. Disconnect the heater hoses from the heater inlet pipe (1) using the J 38185 .

  4. Object Number: 608980  Size: SH
  5. Remove the heater inlet pipe.

Installation Procedure


    Object Number: 608980  Size: SH
  1. Connect the heater hoses to the heater inlet pipe (1) using the J 38185 .
  2. Install the vacuum control solenoid valve. Refer to Secondary Air Injection Vacuum Control Solenoid Valve Replacement in Engine Controls.
  3. Fill the cooling system. Refer to Cooling System Draining and Filling .