LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Chevrolet >> 2004 >> Impala Base, 3.4 E >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System 3.4L (Introduction) >> Repair Instructions >> Knock Sensor (KS) Replacement >> Installation Procedure
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Installation Procedure

IMPORTANT: 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.
    NOTE: Refer to Fastener Notice in Cautions and Notices.
  1. Install the knock sensor.

    Tighten:  Tighten the knock sensor to 19 N.m (14 lb ft).

  2. Connect the knock sensor wiring harness electrical connector.
  3. Lower the vehicle.
  4. Fig 1: Installing Knock Sensor
    GM15945Courtesy of GENERAL MOTORS CORP.