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

Removal Procedure

IMPORTANT: Take care when handling the mass air flow/intake air temperature (MAF/IAT) sensor. Do not dent, puncture, or otherwise damage the honeycell located at the air inlet end of the MAF/IAT. Do not touch the sensing elements or allow anything including cleaning solvents and lubricants to come in contact with them. Use a small amount of a non-silicone based lubricant, on the air duct only, to aid in installation. Do not drop or roughly handle the MAF/IAT sensor.
    Fig 1: MAF/IAT Sensor & Air Cleaner Assembly
    GM832908Courtesy of GENERAL MOTORS CORP.
  1. Remove air intake resonator. Refer to Air Cleaner Resonator Outlet Duct Replacement .
  2. Disconnect the MAF/IAT sensor electrical connector.
  3. Loosen the clamp securing the MAF/IAT sensor to the air cleaner housing.
  4. Remove the MAF/IAT sensor from the air cleaner assembly.
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