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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1838 (Engine Controls And Fuel - 2.2L (L61) - Introduction (2 Of 2)) >> Repair Instructions >> Knock Sensor Replacement >> Installation Procedure

Installation Procedure

WARNING: This page is about a different car, the 2007 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: Removing & Installing Knock Sensor
    GM895903Courtesy of GENERAL MOTORS CORP.
    IMPORTANT: If a new knock sensor pigtail connector retaining clip is going to be used, the old one must be removed from the intake manifold. Use a push pin removal tool to remove the clip from the intake manifold.
  1. Insert the knock sensor pigtail connector with retaining clip into the intake manifold hole or slide the knock sensor pigtail connector over the retaining clip from the top.
  2. Connect the knock sensor harness connector. Push in the connector until a click is heard, then pull back to confirm a positive engagement.
    3. NOTE: Refer to Fastener Notice .
    IMPORTANT: The larger metal contact area of the knock sensor MUST be toward the engine block. A DTC P0327 may result if the sensor is installed backwards.
  3. Install the knock sensor at the 9 o'clock position and attachment bolt.

    Tighten:  Tighten the knock-sensor-engine block bolt to 25 N.m (18 lb ft).

  4. Connect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection (2.2L (L61) and 3.5L (L66))
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