Crankshaft Position Sensor: Service and Repair

Crankshaft Sensor Positioning:

Special Tool; Assembly:

REMOVE OR DISCONNECT

1. Serpentine belt from the crankshaft pulley.
2. Raise the vehicle on a hoist.
3. Right front tire and wheel assembly.
4. Right inner fender access cover.
5. Using a 28 mm socket, remove the crankshaft harmonic balancer retaining bolt.
6. Crankshaft harmonic balancer using tool J 38192 or equivalent.
7. Sensor electrical connector.
8. Foreign object deflector.
9. Sensor and pedestal from block face.
10. Sensor from pedestal.

INSTALL OR CONNECT:

1. Loosely install the crankshaft sensor on the pedestal.
2. Position the sensor with pedestal attached on special Tool J 37089.
3. Position the special tool on the crankshaft.
4. Bolts to hold the pedestal to the block face, torque to 20-40 Nm (14-28 lb ft).
5. Torque the pedestal pinch bolt to 3-4 Nm (38-40 lb in).
6. Remove special tool J 37089.
7. Place the special tool 37089 on the harmonic balancer and turn. If any vane of the harmonic balancer touches the tool, replace the balancer assembly.
8. Balancer on the crankshaft.
^ Apply thread sealer (GM 1052080) or equivalent to the threads of the balancer bolt.
9. Torque the crankshaft bolt to 140 Nm + 56° (104 lb ft + 56°).
10. Foreign object deflector.
11. Electrical connector.
12. Inner fender shield.
13. Tire and wheel assembly, torque to 140 Nm (104 lb ft).
14. Lower the vehicle.
15. Serpentine belt.