Crankshaft Position Sensor Replacement 7X

1. disconnect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection in engine electrical
2. Crank steering wheel fully to the left.
3. Raise vehicle on hoist.
4. Disconnect the sensor electrical connector.
5. Remove the retaining bolt.
6. Remove the sensor from engine.
7. If the sensor is not being replaced inspect for the following:

7.1.	Inspect the sensor for wear, cracks, or leakage. Replace the o-ring if necessary.

7.2.	Lubricate the new o-ring with clean engine oil before installing.

1. Install the sensor into the block.

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. Reinstall the bolt to hold sensor to block face.

Tighten
Tighten the bolt to 8 N·m (71 lb in).

3. Connect the sensor electrical connector.
4. Lower the vehicle.
5. Reconnect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection in engine electrical.

Crankshaft Position Sensor Replacement 24X

1. Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection in engine electrical.
2. Remove the serpentine drive belt from crankshaft pulley.
3. Raise the vehicle.
4. Remove the crankshaft harmonic balancer retaining bolt.
5. Remove the crankshaft harmonic balancer using special tool (J 24420-B).
6. Note the routing of sensor harness before removal.
7. Remove the harness retaining clip with bolt (1).
8. Disconnect the sensor electrical connector.
9. Remove the sensor bolts (2).
10. Remove the sensor.

1. Install the 24X Crankshaft Position Sensor with bolts (2) and route harness as noted during removal.

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. Reinstall the harness retaining clip with bolt (1).

Tighten
Tighten the bolts to 10 N·m (8 lb ft).

3. Connect the sensor electrical connector.
4. Reinstall the balancer on the crankshaft using special tool (J 29113).
5. Apply thread sealer GM #1052080 or equivalent to threads of the crankshaft harmonic balancer bolt.

Tighten
Tighten the bolt to 150 N·m  (110 lb ft).

6. Lower vehicle.
7. Reinstall the serpentine drive belt.
8. Reconnect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection in engine electrical