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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1416 (Engine Control System - 4.8L, 5.3L, & 6.0L - Introduction) >> 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 2004 GMC Envoy XUV, 2004 GMC Envoy XL, 2004 Chevrolet TrailBlazer, and 2004 Buick Rainier. However, it is still accessible from the selected car via links, so may be relevant.
IMPORTANT: Use 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.
    Fig 1: Disconnecting/Connecting MAF/IAT Sensor Electrical Connector
    GM898340Courtesy of GENERAL MOTORS CORP.
  1. Disconnect the MAF/IAT sensor electrical connector.
    2. Fig 2: View Of Intake Air Tube
    GM898123Courtesy of GENERAL MOTORS CORP.
  2. Loosen the clamps at the MAF/IAT sensor and the throttle body.
  3. Remove the air cleaner outlet duct bolt.
  4. Remove the air cleaner outlet duct.
  5. Loosen the clamp attaching the MAF/IAT sensor to the air cleaner housing.
  6. Remove the MAF/IAT sensor from the air cleaner housing.
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