For 1990-2009 cars only
- Inspect balance shaft front roller bearing and rear sleeve bearing for damage or excessive wear. The bearings are serviced as an assembly. Use the proper tools for properly servicing the bearings.
- Inspect balance shaft drive and driven gears for nicks or burrs. Replace gears that are damaged.
- Inspect front and rear bearing journal diameters. Replace the balance shaft if the diameter exceeds specifications.
