GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

  1. Carefully disconnect the throttle body air inlet duct.
  2. Drain the cooling system. Refer to Cooling System Draining and Filling .

  3. Object Number: 622761  Size: SH
  4. Disconnect the throttle body inlet hose clamp and the hose (3) from the coolant pipe.
  5. Disconnect the throttle body inlet hose (3) from the throttle body.
  6. Remove the throttle body inlet hose (3).

Installation Procedure


    Object Number: 622761  Size: SH
  1. Install the throttle body inlet hose (3).
  2. Connect the throttle body inlet hose and clamp (3) to the throttle body.
  3. Connect the throttle body inlet hose and the clamp (3) to the coolant pipe.
  4. Fill the cooling system. Refer to Cooling System Draining and Filling .
  5. Carefully install the throttle body air inlet duct.