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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 973 (Engine Controls - 4.8L, 5.3L, & 6.0L (Introduction)) >> Repair Instructions >> Mass Air Flow (MAF)/Intake Air Temperature (IAT) Sensor Replacement >> Installation Procedure

Installation Procedure

WARNING: This page is about a different car, the 2004 GMC Sierra, 2004 GMC Cab & Chassis Sierra, 2004 Chevrolet Silverado, and 2004 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
IMPORTANT: The embossed arrow on the MAF/IAT sensor indicates the proper air flow direction. The arrow must point toward the engine.
  1. Locate the air flow direction arrow (2) on the MAF/IAT sensor.
    2. Fig 1: MAF/IAT Sensor Air Flow Direction Arrow
    GM359112Courtesy of GENERAL MOTORS CORP.
  2. Install the MAF/IAT sensor to the air cleaner assembly.
    NOTE: Refer to Fastener Notice in Cautions and Notices.
  3. Tighten the MAF/IAT clamp.

    Tighten:  Tighten the clamp to 7 N.m (62 lb in).

    4. Fig 2: View Of Air Cleaner Assembly, MAF/IAT Sensor & Clamp
    GM858230Courtesy of GENERAL MOTORS CORP.
  4. Connect the MAF/IAT sensor electrical connector (4).
    5. Fig 3: View Of Auxiliary Battery Relay, MAF, IAT & Coolant Level Sensor Electrical Connectors
    GM674702Courtesy of GENERAL MOTORS CORP.
  5. Push in the gray CPA retainer.
  6. Install the air cleaner outlet duct. Refer to Air Cleaner Resonator Outlet Duct Replacement .
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