GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2007 🢒 TopKick C-Series (Conventional) C6/C7/C8 🢒 Engine 🢒 Engine Controls and Fuel - 7.8L (LG4) 🢒 Mass Airflow Sensor with Intake Air Temperature Sensor Replacement

Removal Procedure

    Object Number: 1395827 Size: SH
  1. Disconnect the mass air flow (MAF)/intake air temperature (IAT) sensor electrical connector.

    2. Object Number: 1395821 Size: SH
  2. Remove the MAF/IAT sensor TORX® screws.
  3. Remove the MAF/IAT sensor and gasket from the air cleaner.

Installation Procedure

    Notice: Refer to Fastener Notice in the Preface section.


    Object Number: 1395827 Size: SH
  1. Install the MAF/IAT sensor gasket and the MAF IAT sensor to the air cleaner.
  2. Install the MAF/IAT sensor TORX® screws.

    3. Tighten
    Tighten the screws to 8 N·m (70 lb in).


    Object Number: 1395821 Size: SH
  3. Connect the MAF/IAT sensor electrical connector.