Tools Required

Notice: The inertial weight section of the crankshaft balancer is assembled to the hub with a rubber type material. The correct installation procedures (with the proper tool) must be followed or movement of the inertial weight section of the hub will destroy the tuning of the crankshaft balancer.

1. Remove the drive belt. Refer to Drive Belt Replacement .
2. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
3. Remove the right front tire and wheel. Refer to Tire and Wheel Removal and Installation in Tires and Wheels.
4. Remove the right engine splash shield. Refer to Engine Splash Shield Replacement - Right Side in Body Front End.
5. Support the frame with jackstands.
6. Loosen the left side and remove the right side frame bolts. Refer to Frame Replacement in Frame and Underbody.
7. Use the jackstands to lower the right side of the frame.
8. Remove the torque converter covers. Refer to Torque Converter Cover Replacement in Automatic Transaxle - 4T65E.
9. Install the J 37096 to prevent the flywheel from rotating.



10. Remove the crankshaft balancer bolt and the washer.



11. Use the J 24420-C to remove the crankshaft balancer.

1. Apply sealant GM P/N 12346141 (Canadian P/N 10953433) or equivalent to the keyway of the balancer.
2. Use the J 29113 to install the crankshaft balancer.
3. Remove the J 29113 from the crankshaft balancer.
4. Install the J 37096 to prevent the flywheel from rotating.

Notice: Refer to Fastener Notice in the Preface section.




5. Install the crankshaft balancer washer and the bolt.

Tighten
Tighten the bolt to 70 N·m (52 lb ft) + 72 degrees.

6. Remove the J 37096 from the flywheel.
7. Install the torque converter covers. Refer to Torque Converter Cover Replacement in Automatic Transaxle - 4T65E.
8. Raise the frame to the original position.
9. Install the frame bolts. Refer to Frame Replacement in Frame and Underbody.
10. Remove the jackstands.
11. Install the right engine splash shield. Refer to Engine Splash Shield Replacement - Right Side in Body Front End.
12. Install the right front tire and wheel. Refer to Tire and Wheel Removal and Installation in Tires and Wheels.
13. Lower the vehicle.
14. Install the drive belt. Refer to Drive Belt Replacement .
15. Perform a CKP system variation learn procedure. Refer to Crankshaft Position System Variation Learn in Engine Controls - 3.4L