GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

Tools Required

J 38185 Hose Clamp Pliers

  1. Remove the air cleaner and duct assembly. Refer to Air Cleaner Element Replacement (Housing Replacement) in Engine Controls.
  2. Drain the coolant until the coolant level is below the throttle body heater hoses. Refer to Cooling System Draining and Filling .
  3. Use the J 38185 in order to remove the hose clamp.

  4. Object Number: 399740  Size: SH
  5. Remove the throttle body heater outlet hose.

Installation Procedure


    Object Number: 399743  Size: SH
  1. Install the throttle body heater outlet hose.
  2. Use the J 38185 in order to install the hose clamps.
  3. Fill the cooling system. Refer to Cooling System Draining and Filling .
  4. Install the air cleaner and duct assembly. Refer to Air Cleaner Element Replacement (Housing Replacement) in Engine Controls.