Inspection Procedure

WARNING: This page is about a different car, the 2002 Oldsmobile Aurora and 2001 Oldsmobile Aurora. However, it is still accessible from the selected car via links, so may be relevant.

Inspect the crankshaft balancer for the following:
- Worn or damaged hub-to-crankshaft surface (1)
- Worn, grooved or damaged hub seal surface (2), a crankshaft balancer hub seal surface with excessive scoring, grooves, rust or other damage must be replaced.
  
  Fig 1: Checking Crankshaft Balancer
  Courtesy of GENERAL MOTORS CORP.
- Bent, damaged or missing crankshaft front oil seal shield (3)
- Worn, chunking or deteriorated rubber between the hub and pulley (4)
- Damaged drive belt ribs (5)
Repair or replace the crankshaft balancer as necessary.