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Home >> Chevrolet >> 2009 >> Chevy Express G3500, Van Passenger Extended >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 2 (Engine Control System & Fuel System - 4.3L - Introduction) >> Repair Instructions >> Mass Airflow Sensor with Intake Air Temperature Sensor Replacement >> Installation Procedure

Installation Procedure

WARNING: This page is about a different variant/trim than selected.
    Fig 1: Identifying MAF/IAT Sensor & Bolts
    GM1934895Courtesy of GENERAL MOTORS CORP.
  1. Install the MAF/IAT sensor (1) to the air cleaner housing.
    2. CAUTION: Refer to Fastener Caution .
  2. Install the MAF/IAT sensor bolts (2) and tighten to 9 N.m (80 lb in).
    3. Fig 2: Identifying Engine Wiring Harness Electrical Connector & MAF/IAT Sensor
    GM1934890Courtesy of GENERAL MOTORS CORP.
  3. Connect the engine wiring harness electrical connector (6) to the MAF/IAT sensor (5).
    4. Fig 3: Identifying Mass Airflow Sensor/Intake Air Temperature Sensor
    GM1934979Courtesy of GENERAL MOTORS CORP.
  4. Position and install the air cleaner outlet duct (2) to he MAF/IAT sensor.
  5. Tighten the air cleaner outlet duct clamp (1) at the MAF/IAT sensor and tighten to 5 N.m (44 lb in).
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