GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Buick 🢒 2008 🢒 Enclave 🢒 Engine 🢒 Engine Mechanical - 2.8L, 3.0L, 3.2L, or 3.6L 🢒 Air Cleaner Outlet Duct Replacement

Removal Procedure

    Object Number: 2018383 Size: SH
  1. Remove the fuel injector sight shield. Refer to Fuel Injector Sight Shield Replacement.
  2. Disconnect the positive crankcase ventilation (PCV) fresh air tube from the camshaft cover fitting.

    3. Object Number: 2021041 Size: SH
  3. If replacing the outlet duct, use a flat bladed tool in order to work out the PCV plastic connector.

    4. Object Number: 1860658 Size: SH
  4. Loosen the air cleaner outlet duct clamps (1) at the mass air flow (MAF)/intake air temperature (IAT) sensor and throttle body.
  5. Remove the air cleaner outlet duct.

Installation Procedure

    Object Number: 1860658 Size: SH
  1. Loosely Install the air cleaner outlet duct then install the fuel injector sight shield to ensure proper clearance.
  2. Remove the fuel injector sight shield.

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

  3. Tighten the air cleaner outlet duct clamps (1) at the MAF/IAT sensor and throttle body.

    4. Tighten
    Tighten the clamp to 4 N·m (35 lb in).


    Object Number: 2018383 Size: SH
  4. Install the PCV tube to the air cleaner outlet duct.
  5. Connect the PCV fresh air tube to the camshaft cover fitting.
  6. Install the fuel injector sight shield. Refer to Fuel Injector Sight Shield Replacement.