GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Buick 🢒 2008 🢒 LaCrosse 🢒 Engine 🢒 Engine Electrical 🢒 Air Cleaner Inlet Duct Replacement

Removal Procedure

    Object Number: 1404636 Size: SH
  1. Remove the fuel injector sight shield. Refer to Fuel Injector Sight Shield Replacement.
  2. Loosen the intake air duct clamps.
  3. Disconnect the positive crankcase ventilation (PCV) tube from the air intake duct.
  4. Remove the air intake duct from the throttle body and the mass air flow (MAF) sensor.
  5. Remove the air intake duct.

Installation Procedure

    Object Number: 1404636 Size: SH
  1. Install the air intake duct to the MAF sensor.
  2. Install the air cleaner intake duct to the throttle body.
  3. Connect the PCV tube to the air intake duct.

    4. Notice: Refer to Fastener Notice in the Preface section.

  4. Tighten the air intake air duct clamps.

    5. Tighten
    Tighten the clamps to 2 N·m (18 lb in).

  5. Install the fuel injector sight shield. Refer to Fuel Injector Sight Shield Replacement.