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Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> External Pages >> Different car >> Section 229 (Engine Control System & Fuel - Hybrid (Hp2) 6.0L (LFA) - Introduction (2 Of 2)) >> Repair Instructions >> Mass Airflow Sensor/Intake Air Temperature Sensor Replacement >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2008 GMC Yukon and 2008 Chevrolet Tahoe. However, it is still accessible from the selected car via links, so may be relevant.
IMPORTANT: Use care when handling the mass air flow (MAF)/intake air temperature (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.
    Fig 1: View Of MAF/IAT Sensor & Engine Wiring Harness Electrical Connector
    GM1960228Courtesy of GENERAL MOTORS CORP.
  1. Remove the air cleaner outlet resonator. Refer to Air Cleaner Resonator Outlet Duct Replacement .
  2. Disconnect the engine wiring harness electrical connector (2) from the MAF/IAT sensor (1).
    3. Fig 2: View Of MAF/IAT Sensor Adapter & Clamp
    GM1703691Courtesy of GENERAL MOTORS CORP.
  3. Loosen the MAF/IAT sensor adapter clamp.
  4. Remove the MAF/IAT sensor from the air cleaner assembly.
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