GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Buick 🢒 2007 🢒 LaCrosse 🢒 Engine 🢒 Engine Controls and Fuel - 3.8L 🢒 Air Cleaner Assembly Replacement

Removal Procedure
  1. Disconnect the battery negative cable. Refer to Battery Negative Cable Disconnection and Connection .
  2. Remove the air inlet duct. Refer to Air Cleaner Inlet Duct Replacement .

    3. Object Number: 1404634 Size: SH
  3. Remove the air cleaner upper cover bolts and the upper cover.
  4. Disconnect the mass air flow (MAF) sensor electrical connector.

    5. Important: Do not disconnect the transmission control module (TCM) electrical connector.

  5. Remove and reposition the TCM with the wiring harness in order to gain access.

    6. Object Number: 1404635 Size: SH
  6. Remove the air cleaner bolts and the air cleaner with the MAF sensor.

Installation Procedure

    Object Number: 1404635 Size: SH
  1. Install the air cleaner with the MAF sensor.

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

  2. Install the air cleaner bolts.

    3. Tighten
    Tighten the air cleaner bolts to 10 N·m (89 lb in).

  3. Install the TCM with the wiring harness to the air cleaner.
  4. Connect the MAF sensor electrical connector.

    5. Object Number: 1404634 Size: SH
  5. Install the air cleaner upper cover and the upper cover bolts.

    6. Tighten
    Tighten the air cleaner upper cover bolts to 4 N·m (35 lb in).

  6. Install the air inlet duct. Refer to Air Cleaner Inlet Duct Replacement .
  7. Connect the battery negative cable. Refer to Battery Negative Cable Disconnection and Connection .