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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1348 (Engine Control System (Introduction) -- 1.8L (LNK)) >> Repair Instructions >> Knock Sensor (KS) Replacement >> Installation Procedure

Installation Procedure

WARNING: This page is about a different car, the 2004 Pontiac Vibe. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: Knock Sensor And Nut
    GM848007Courtesy of GENERAL MOTORS CORP.
  1. Install the KS (2) onto the threaded stud in the engine block.
  2. Install the KS nut (1) to the threaded stud.
    3. IMPORTANT: In order to prevent water accumulation in the KS electrical connector cavity, install the KS with the connector cavity pointing down.
    Fig 2: Knock Sensor Aligned On Engine Block
    GM858420Courtesy of GENERAL MOTORS CORP.
  3. Align the KS (1) on the engine block as illustrated. The KS electrical connector cavity must point down, in a 15-30 degree arc from perpendicular to the earth.
    4. NOTE: Refer to Component Fastener Tightening Notice in Cautions and Notices.
  4. Tighten the KS nut while maintaining the correct sensor alignment.

    Tighten:  Tighten the nut to 20 N.m (16 lb ft).

  5. Connect the KS electrical connector.
  6. Install the starter motor. Refer to Starter Motor Replacement in Engine Electrical.
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