GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Buick 🢒 2008 🢒 Enclave 🢒 Diagnostic Navigation 🢒 Vehicle Diagnostic Information 🢒 Mass Airflow Sensor with Intake Air Temperature Sensor Replacement

Removal Procedure

    Object Number: 1858081 Size: SH
  1. Remove the air cleaner outlet duct. Refer to Air Cleaner Outlet Duct Replacement.
  2. Disconnect the engine wiring harness electrical connector (4) from the mass air flow (MAF)/intake air temperature (IAT) sensor.
  3. Remove the MAF/IAT sensor screws (1).
  4. Remove the MAF/IAT sensor (2) from the air cleaner assembly.
  5. Remove the MAF/IAT sensor seal (3).

Installation Procedure

    Object Number: 1858081 Size: SH
  1. Install the MAF/IAT sensor seal (3) onto the MAF/IAT sensor.
  2. Install the MAF/IAT sensor (2) to the air cleaner assembly.

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

  3. Install the MAF/IAT sensor screws (1).

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

  4. Connect the engine wiring harness electrical connector (4) to the MAF/IAT sensor.
  5. Install the air cleaner outlet duct. Refer to Air Cleaner Outlet Duct Replacement.