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Home >> Buick >> 2007 >> Lucerne CX >> Repair and Diagnosis >> External Pages >> Different car >> Section 101 (Engine Control System - 3.8L - Introduction (2 Of 2)) >> Repair Instructions >> Mass Air Flow (MAF)/Intake Air Temperature (IAT) Sensor Replacement >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2006 Buick LaCrosse and 2006 Buick Allure. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: Identifying MAF/IAT Sensor
    GM1208107Courtesy of GENERAL MOTORS CORP.
  1. Remove the fuel injector sight shield. Refer to Fuel Injector Sight Shield Replacement in Engine Mechanical - 3.8L.
    2. IMPORTANT: The intake air temperature (IAT) sensor and the mass air flow (MAF) sensor are combined as one sensor.
  2. Disconnect the MAF/IAT sensor electrical connector (2).
  3. Loosen the air cleaner intake duct clamps.
  4. Remove the air cleaner intake duct from the air cleaner housing cover and the throttle body assembly.
  5. Remove the MAF/IAT sensor from the air cleaner intake duct.
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