Removal Procedure

Remove the air cleaner intake duct. Refer to Air Cleaner Intake Duct Replacement in Engine Controls - 3.4L.
Use a hammer and a chisel in order to raise the transaxle vent seat off of the transaxle.

Fig 1: View Of Transaxle Vent

Courtesy of GENERAL MOTORS CORP.

Use a flat-bladed tool in order to pry the transaxle vent (37) out of the transaxle.