For 1990-2009 cars

#### Tools Required

• | J 38122-A Harmonic Balancer Holder

• | J 24420-B Crankshaft Balancer Puller

### Removal Procedure

1. Remove the drive belt. Refer to Drive Belt Replacement .
2. Raise and suitably support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
3. Remove the right engine splash shield. Refer to Engine Splash Shield Replacement in Body Front End.
4. Remove the A/C line from the retainer.
5. Remove the balancer retaining bolt and the washer. Use J 38122-A in order to prevent crankshaft rotation when loosening the bolt.
6. Remove the balancer assembly using J 24420-B .

### Installation Procedure

1. Lubricate the front seal and the sealing surface of the balancer with Chassis Grease GM P/N 1051344 or equivalent.

Important: Do NOT install the automatic transmission crankshaft balancer on an engine equipped with a manual transmission.

2. Install the balancer onto the crankshaft indexing keyway. Tap the balancer into place using a rubber or sand-filled mallet.

Notice: Do not use the J 36660 Torque Angle Meter to rotate the retaining bolt an additional 90 degrees. The torque capacity of the tool will be exceeded and damage to the tool will result.

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.

3. Install the retaining bolt and the washer.

Tighten
Tighten the crankshaft balancer bolt to 175 N·m (129 lb ft). Use J 38122-A in order to prevent crankshaft rotation. Put a mark on the socket next to one of the 4 marks on J 38122-A . This mark will represent the 0-degree point. Tighten the bolt by rotating the socket clockwise 90 degrees. At 90 degrees the socket will index with the next mark on the tool.

4. Install the A/C line into the retainers.
5. Install the right engine splash shield. Refer to Engine Splash Shield Replacement in Body Front End.
6. Lower the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
7. Install the accessory drive belt. Refer to Drive Belt Replacement .
8. Connect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection in Engine Electrical.