GM Service Manual Online
For 1990-2009 cars only

Problem

Action

Power steering hydraulic system failure

Inspect power steering system. Repair as necessary.

Refer to Power Steering System Test in Steering Wheel and Column Tilt.

Alignment out of adjustment

Inspect wheel alignment , adjust as necessary. Refer to Wheel Alignment Measurement in Wheel Alignment.

Variable effort system malfunction

Inspect varible effort steering system, Repair as necessary.

Refer to Variable Effort Steering Diagnosis in Varible Effort Steering System.