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Home >> Chevrolet >> 2009 >> Uplander Base, 3.9 1 >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls And Fuel - 3.9L - Introduction (2 Of 2) >> Repair Instructions >> Knock Sensor Replacement - Bank 1 >> Installation Procedure

Installation Procedure

    Fig 1: Identifying Knock Sensor
    GM1587771Courtesy of GENERAL MOTORS CORP.
    CAUTION: Refer to Fastener Caution .
    NOTE: DO NOT apply thread sealant to the sensor threads. The sensor threads are coated at the factory. Applying additional sealant affects the sensors ability to detect detonation.
  1. Install and tighten the bank 1 knock sensor (1) to 25 N.m (18 lb ft)  .
    2. Fig 2: Identifying Knock Sensor (KS) And Crankshaft Position (CKP) Sensor Connectors
    GM1679872Courtesy of GENERAL MOTORS CORP.
  2. Connect the engine harness electrical connector (1) to the knock sensor.
  3. Install the radiator air baffle. Refer to Radiator Air Baffle Assemblies and Deflectors .
  4. Lower the vehicle.
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