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Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> External Pages >> Different car >> Section 501 (Engine Controls/Fuel - Hybrid (LZ1) - Repair Instructions) >> Repair Instructions >> Knock Sensor 1 Replacement >> Installation Procedure

Installation Procedure

WARNING: This page is about a different car, the 2012 GMC Yukon, 2012 Chevrolet Tahoe, and 2012 Cadillac Escalade. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: Left Side Knock Sensor & Bolt
    GM1402136Courtesy of GENERAL MOTORS COMPANY
    CAUTION:

    Refer to Fastener Caution .

  1. Position the knock sensor (718) to the engine block and install the knock sensor bolt (739). Tighten the bolt to 25 N.m (18 lb ft).
    2. Fig 2: Locating Knock Sensor Electrical Connector & Sleeve
    GM1965285Courtesy of GENERAL MOTORS COMPANY
  2. Connect the engine wiring harness electrical connector (4) to knock sensor.
  3. Position the engine wiring harness sleeve (3) over the knock sensor electrical connection.
  4. Install the left front wheel and tire. Refer to Tire and Wheel Removal and Installation .
  5. If removed, install the left front wheelhouse liner. Refer to Front Wheelhouse Liner Replacement - Left Side .
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