Removal Procedure

Fig 1: View Of PCV Fresh Air Tube

Courtesy of GENERAL MOTORS CORP.

Remove the positive crankcase ventilation (PCV) fresh air tube from the air cleaner intake duct.
Disconnect the mass air flow (MAF)/intake air temperature (IAT) sensor electrical connector.

Fig 2: Identifying Positive Crankcase Ventilation Fresh Air Tube At Air Cleaner Intake Duct

Courtesy of GENERAL MOTORS CORP.

Loosen the clamps and remove the air cleaner intake duct with the MAF/IAT sensor from the throttle body and the air cleaner housing cover.
Loosen the clamp and remove the MAF/IAT sensor from the air cleaner intake duct.