GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

Tools Required

J 38185

  1. Remove the air cleaner and duct assembly. Refer to Air Cleaner Element Replacement in Engine Controls - 3.4L.
  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 in Engine Controls - 3.4L.