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Home >> Isuzu >> 2007 >> Ascender 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 470 (Engine Control System & Fuel System - 4.2L - Introduction) >> Repair Instructions >> Mass Airflow Sensor with Intake Air Temperature Sensor Replacement >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2009 GMC Envoy and 2009 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: 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: Identifying MAF/IAT Sensor Harness Connector
    GM1656804Courtesy of GENERAL MOTORS CORP.
  1. Disconnect the engine harness electrical connector (5) from the MAF/IAT sensor.
  2. Fig 2: Identifying MAF/IAT Sensor Screws
    GM1656806Courtesy of GENERAL MOTORS CORP.
  3. Remove the MAF/IAT sensor screws.
  4. Remove the MAF/IAT sensor.