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Home >> Chevrolet >> 2004 >> Cutaway 4.8 V >> Repair and Diagnosis >> External Pages >> Different car >> Section 3 (Engine Control System - 4.3L (Introduction)) >> Repair Instructions >> Knock Sensor (KS) Replacement >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2004 GMC Savana and 2004 Chevrolet Chevy Express. However, it is still accessible from the selected car via links, so may be relevant.

The knock sensor (KS) is located at the top rear of the engine.

    CAUTION: Refer to Battery Disconnect Caution in Cautions and Notices.
  1. Disconnect the negative battery cable.
  2. Remove the engine cover. Refer to Engine Cover Replacement in Interior Trim.
    3. Fig 1: Locating Knock Sensor & Retaining Bolt
    GM679284Courtesy of GENERAL MOTORS CORP.
  3. Disconnect the KS harness connector (3).
  4. Remove the KS bolt (1).
  5. Remove the KS (2).
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