GM Service Manual Online
For 1990-2009 cars only

    Object Number: 295870  Size: SH
  1. Clean the crankshaft balancer in solvent.
  2. Caution: Wear safety glasses in order to avoid eye damage.

  3. Dry the balancer with compressed air.
  4. Inspect the crankshaft balancer for the following conditions:
  5. • Loose or improperly installed balancer weights.
    • Worn, grooved, or damaged hub seal surface
       - A crankshaft balancer hub seal surface with excessive scoring, grooves, rust, or other damage must be replaced.
       - Minor imperfections on the hub seal surface may be removed with a polishing compound or fine grade emery cloth.
    • Worn, chunking, or deteriorated rubber
    • Worn or damaged keyway
    • Damaged threads
  6. Repair or replace the crankshaft balancer as necessary.