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HOMESERVICE MANUALSCHEVROLET2012CHEVY EXPRESS G2500, VAN PASSENGER, 4.8L ENG VIN AREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 996 (ENGINE CONTROLS AND FUEL - 4.8L, 5.3L, 6.0L, 6.2L, OR 7.0L - INTRODUCTION (2 OF 2))REPAIR INSTRUCTIONSCRANKSHAFT POSITION SENSOR REPLACEMENTINSTALLATION PROCEDURE
2012 Chevrolet Chevy Express G2500, Van Passenger, 4.8L Eng VIN A

Installation Procedure

2012 Chevrolet Chevy Express G2500, Van Passenger, 4.8L Eng VIN ASECTION Installation Procedure
WARNING: This page is about a different car, the 2008 GMC Sierra, 2008 GMC Cab & Chassis Sierra, 2008 Chevrolet Silverado, and 2008 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: CKP Sensor & Bolt
    GM1239292Courtesy of GENERAL MOTORS CORP.
  1. Install the CKP sensor.
    2. NOTE: Refer to Fastener Notice .
  2. Install the CKP sensor bolt.

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

    3. Fig 2: View Of Engine Wiring Harness Electrical Connector & Components
    GM1698087Courtesy of GENERAL MOTORS CORP.
  3. Connect the engine wiring harness electrical connector (1) to the CKP sensor.
  4. Install the starter. Refer to Starter Motor Replacement (4.8L, 5.3L, 6.0L, and 6.2L) .
  5. Perform the CKP system variation learn procedure. Refer to Crankshaft Position System Variation Learn .
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.