Test Description

WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 2002 GMC Yukon XL, 2002 GMC Yukon, 2002 Chevrolet Tahoe, 2002 Chevrolet Suburban, and 2002 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.

The numbers below refer to the step numbers on the diagnostic table.

3. This step tests the system for restrictions.
5. This step tests the following components for the following conditions:
- The pump for internal leaks
- The power steering pipes for kinks
6. This step tests the ability of the pump to regulate flow at maximum pressure.
8. This step tests the ability of the pump to regulate flow under normal operating conditions.
10. This step tests the internal components of the pump and the gear.

Fig 1: Identifying Power Steering System Test Procedure (1 Of 3)
Courtesy of GENERAL MOTORS CORP.

Fig 2: Identifying Power Steering System Test Procedure (2 Of 3)
Courtesy of GENERAL MOTORS CORP.

Fig 3: Identifying Power Steering System Test Procedure (3 Of 3)
Courtesy of GENERAL MOTORS CORP.