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HOMESERVICE MANUALSCHEVROLET2008CHEVY EXPRESS G3500, VAN PASSENGER EXTENDEDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 116 (ENGINE CONTROLS AND FUEL - 2.2L (L61) - INTRODUCTION (2 OF 2))REPAIR INSTRUCTIONSKNOCK SENSOR REPLACEMENTINSTALLATION PROCEDURE
2008 Chevrolet Chevy Express G3500, Van Passenger Extended

Installation Procedure

2008 Chevrolet Chevy Express G3500, Van Passenger ExtendedSECTION Installation Procedure
WARNING: This page is about a different car, the 2008 Chevrolet Malibu Classic. However, it is still accessible from the selected car via links, so may be relevant.
IMPORTANT: Rotate the pigtail 90 degrees from vertical before securing the bolt.
    Fig 1: Identifying Knock Sensor
    GM1578476Courtesy of GENERAL MOTORS CORP.
  1. Position the knock sensor to the engine block.
    2. NOTE: Refer to Fastener Notice .
  2. Tighten the knock sensor bolt.

    Tighten:  Tighten the bolt to 25 N.m (18 lb ft).

    3. Fig 2: Identifying CPA Retainer And Knock Sensor Jumper Wire Electrical Connector
    GM1773350Courtesy of GENERAL MOTORS CORP.
  3. Connect the engine wiring harness electrical connector (2) to the knock sensor jumper wire electrical connector (3).
  4. Install the connector position assurance (CPA) retainer (1).
  5. Install the knock sensor jumper wire electrical connector rosebud clip to the oil level indicator tube tab.
  6. Lower the vehicle.
RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.