GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 1998 🢒 Corvette 🢒 Engine 🢒 Engine Controls - 5.7L 🢒 Crankshaft Position Sensor Replacement

Removal Procedure

    Caution: Unless directed otherwise, the ignition and start switch must be in the OFF or LOCK position, and all electrical loads must be OFF before servicing any electrical component. Disconnect the negative battery cable to prevent an electrical spark should a tool or equipment come in contact with an exposed electrical terminal. Failure to follow these precautions may result in personal injury and/or damage to the vehicle or its components.

  1. Disconnect the negative battery cable.
  2. Raise the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.

    3. Object Number: 74061 Size: SH
  3. Disconnect the starter electrical connectors.

    4. Object Number: 74063 Size: SH
  4. Remove the starter. Refer to Starter Motor Replacement in Engine Electrical.

    5. Object Number: 56592 Size: SH
  5. Disconnect the Crankshaft Position (CKP) sensor electrical connector.

    6. Important: Clean the area around the CKP before removal in order to avoid debris from entering the engine.


    Object Number: 55322 Size: SH
  6. Remove the CKP sensor retaining bolt.
  7. Remove the CKP sensor.

Installation Procedure
  1. Install the CKP sensor.

    2. Object Number: 55322 Size: SH

    Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

  2. Install the CKP sensor retaining bolt.

    3. Tighten
    Tighten the CKP sensor to 25 N·m (18 lb ft).


    Object Number: 56592 Size: SH
  3. Connect the CKP sensor electrical connector.

    4. Object Number: 74063 Size: SH
  4. Install the starter. Refer to Starter Motor Replacement in Engine Electrical.

    5. Object Number: 74061 Size: SH
  5. Connect the starter electrical connectors.
  6. Lower the vehicle.
  7. Connect the negative battery cable.
  8. Perform the idle learn procedure. Refer to Idle Learn .
  9. Program the transmitters. Refer to Transmitter Programming/Synchronization in Keyless Entry.