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Home >> Hummer >> 2005 >> H2 4D Utility Pickup >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Introduction >> Repair Instructions >> Mass Air Flow (MAF)/Intake Air Temperature (IAT) Sensor Replacement >> Installation Procedure
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Installation Procedure

IMPORTANT: The embossed arrow on the MAF/IAT sensor indicates the proper air flow direction. The arrow must point toward the engine.
    Fig 1: MAF/IAT Sensor Air Flow Direction Arrow
    GM359112Courtesy of GENERAL MOTORS CORP.
  1. Locate the air flow direction arrow (2) on the MAF/IAT sensor.
    2. Fig 2: MAF/IAT Sensor & Air Cleaner Assembly
    GM832908Courtesy of GENERAL MOTORS CORP.
  2. Install the MAF/IAT sensor on to the air cleaner housing.
  3. Tighten the clamp securing the MAF/IAT sensor to the air cleaner housing.
  4. Connect the MAF/IAT electrical connector.
  5. Install air intake resonator. Refer to Air Cleaner Resonator Outlet Duct Replacement .
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