Crankshaft Position Sensor: Service and Repair

Crankshaft Position Sensor Shield:

Crankshaft Sensor:

REMOVAL PROCEDURE
1. Remove the negative battery cable.
2. Remove the serpentine belts from crankshaft pulley.
3. Raise the vehicle on a hoist.
4. Using 28 mm socket, remove the crankshaft harmonic balancer retaining bolt.
5. Remove the crankshaft harmonic balancer using J 38197.
6. Remove the crankshaft position sensor shield.

CAUTION: Do Not use a pry bar.

7. Disconnect the sensor electrical connector.
8. Remove the sensor from the block face.

INSTALLATION PROCEDURE
1. Position the Crankshaft Position Sensor onto the engine block face.
2. Install the bolts to hold the sensor to the engine block face.
3. Tighten.

^ Tighten bolts to 20-40 Nm (14-28 lb ft).

4. Position and install the Crankshaft Position Sensor Shield.
5. Connect the electrical connector.
6. Position the Balancer onto the Crankshaft.
7. Apply thread sealer GM-105206O or equivalent to threads of Crankshaft Balancer bolt.

^ Tighten bolt to 150 Nm +76° (110 lb ft +76°).

8. Lower the vehicle from the hoist.
9. Install the Serpentine accessory drive belt.
10. Connect the negative battery cable.