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Home >> Hummer >> 2009 >> H3 Alpha >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 1 (Engine Controls And Fuel - 3.7L - Introduction) >> Repair Instructions >> Mass Airflow Sensor with Intake Air Temperature Sensor Replacement >> Installation Procedure

Installation Procedure

WARNING: This page is about a different variant/trim than selected.
CAUTION:
  • Handle the MAF sensor carefully.
  • Do not drop the MAF sensor in order to prevent damage to the MAF sensor.
  • Do not damage the screen located on the air inlet end of the MAF.
  • Do not touch the sensing elements.
  • Do not allow solvents and lubricants to come in contact with the sensing elements.
  • Use a small amount of a soap based solution in order to aid in the installation.
    Fig 1: MAF/IAT Sensor And Screws
    GM1969053Courtesy of GENERAL MOTORS CORP.
  1. Insert the MAF/IAT sensor (2) into the air cleaner assembly.
    2. CAUTION: Refer to Fastener Caution .
  2. Install the MAF/IAT sensor screws (1).

    Tighten:  Tighten the screws to 1.5 N.m (13 lb in).

    3. Fig 2: Engine Wiring Harness Electrical Connector And Mass Air Flow (MAF)/intake Air Temperature (IAT) Sensor
    GM1969052Courtesy of GENERAL MOTORS CORP.
  3. Connect the engine wiring harness electrical connector (1) to the MAF/IAT sensor (2).
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