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HOMESERVICE MANUALSCHEVROLET2003TRAILBLAZER 4.2 S, 4WDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1342 (ENGINE CONTROL SYSTEM (INTRODUCTION) - 1.8L (LV6))REPAIR INSTRUCTIONSCRANKSHAFT POSITION (CKP) SENSOR REPLACEMENTINSTALLATION PROCEDURE
2003 Chevrolet TrailBlazer 4.2 S, 4WD

Installation Procedure

2003 Chevrolet TrailBlazer 4.2 S, 4WDSECTION Installation Procedure
WARNING: This page is about a different car, the 2004 Pontiac Vibe. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: CKP Sensor And Hold Down Bolt
    GM181701Courtesy of GENERAL MOTORS CORP.
  1. Install the CKP sensor (1) into the front cover of the engine block.
    2. NOTE: Refer to Fastener Notice in Cautions and Notices.
  2. Install the CKP sensor hold down bolt (2).

    Tighten:  Tighten the hold down bolt to 9 N.m (80 lb in).

  3. Connect the CKP sensor electrical connector.
    4. Fig 2: Stone Shield, Bolts And Retainers
    GM830841Courtesy of GENERAL MOTORS CORP.
  4. Install the stone shield (1) with the four retainers (2).

    Tighten:  Tighten the two shield bolts to 10 N.m (89 lb in).

  5. Secure the stone shield (1) with the two bolts (3).
  6. Lower the vehicle.
RENDER: 1.0x

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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.