GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Buick 🢒 2009 🢒 LaCrosse 🢒 Diagnostic Navigation 🢒 Vehicle Diagnostic Information 🢒 Mass Airflow Sensor with Intake Air Temperature Sensor Replacement

Removal Procedure

    Object Number: 1208107 Size: SH
  1. Remove the air intake duct. Refer to Air Cleaner Resonator Outlet Duct Replacement.
  2. Disconnect the mass air flow (MAF)/intake air temperature (IAT) sensor electrical connector (2).

    3. Object Number: 1556017 Size: SH
  3. Remove the MAF/IAT sensor bolts.
  4. Remove the MAF/IAT sensor from the air cleaner housing.
  5. Remove the MAF/IAT sensor seal, if necessary.

Installation Procedure

    Object Number: 1556017 Size: SH
  1. Install the MAF/IAT sensor seal, if necessary.
  2. Install the MAF/IAT sensor to the air cleaner housing.

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

  3. Install the MAF/IAT sensor bolts.

    4. Tighten
    Tighten the bolts to 10 N·m (89 lb in).


    Object Number: 1208107 Size: SH
  4. Connect the MAF/IAT sensor electrical connector (2).
  5. Install the air intake duct. Refer to Air Cleaner Resonator Outlet Duct Replacement.