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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 973 (Engine Controls - 4.8L, 5.3L, & 6.0L (Introduction)) >> Repair Instructions >> Knock Sensor (KS) Replacement >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2004 GMC Sierra, 2004 GMC Cab & Chassis Sierra, 2004 Chevrolet Silverado, and 2004 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
  1. Remove the intake manifold. Refer to Intake Manifold Replacement in Engine Mechanical-4.8L, 5.3L, and 6.0L.
  2. Gently pry up the rubber covers.
    3. Fig 1: View Of Rubber Covers
    GM832149Courtesy of GENERAL MOTORS CORP.
  3. Disconnect the knock sensor electrical connectors.
  4. Remove the knock sensors.
    5. Fig 2: View Of Knock Sensors
    GM309864Courtesy of GENERAL MOTORS CORP.
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