GM Service Manual Online
For 1990-2009 cars only

Checks

Action

Variable drive pulley assembly (500)

Important: The variable drive pulley assembly (500), variable driven pulley assembly (106) and variable drive belt assembly (107) are usually replaced as a set if one or more of these components are damaged. Inspect each component as necessary.

Inspect for worn splines - causing excessive backlash. Replace the variable drive pulley assembly (500). Refer to Variable Driven Pulley Bearing Replacement .