GM Service Manual Online
For 1990-2009 cars only

Groan Noise in Steering Pump for GMC Truck GMC P42 Commercial Chassis 1999

Problem

Action

Low oil level

Add power steering fluid as required. Refer to the appropriate procedure from the following list:

Extreme wear of the cam ring

  1. Tighten the connector.
  2. Bleed the system. Refer to Power Steering System Bleeding .