GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2009 🢒 Sierra Denali 🢒 Diagnostic Navigation 🢒 Vehicle Diagnostic Information 🢒 Crankshaft Position Sensor Replacement

Removal Procedure

    Object Number: 1698082 Size: SH
  1. Raise and suitably support the vehicle. Refer to Lifting and Jacking the Vehicle.
  2. If equipped, remove the oil pan skid plate and bolts.

    3. Object Number: 1876999 Size: SH
  3. Disconnect the engine wiring harness electrical connector (4) from the crankshaft position (CKP) sensor.

    4. Object Number: 1877000 Size: SH
  4. Remove the CKP sensor bolt and sensor.

Installation Procedure

    Object Number: 1877000 Size: SH

    Note: When installing the CKP sensor, make sure the sensor is fully seated before tightening the bolt. A poorly seated CKP sensor may perform erratically and may set false diagnostic trouble codes (DTCs).

    Note: Do not reuse the original O-ring seal.

  1. If reinstalling the old CKP sensor, install a NEW O-ring seal onto the sensor.
  2. Lubricate the O-ring seal with clean engine oil.

    3. Caution: Refer to Fastener Caution in the Preface section.

  3. Install the CKP sensor and bolt.

    4. Tighten
    Tighten the bolt to 10 N·m (89 lb in).


    Object Number: 1876999 Size: SH
  4. Connect the engine wiring harness electrical connector (4) to the CKP sensor.

    5. Object Number: 1698082 Size: SH
  5. If equipped, position the oil pan skid plate and install the bolts.

    6. Tighten
    Tighten the bolts to 28 N·m (21 lb ft).

  6. Lower the vehicle.
  7. Perform the crankshaft position system variation learn procedure. Refer to Control Module References.