GM Service Manual Online
For 1990-2009 cars only

The lip seals are located on the following components:

    • The steering gear - at the pinion shaft
    • The pump drive shaft - with no special attention needed

When a leak occurs in these areas, replace the seal under the following conditions:

  1. After a through cleaning of the sealing surface
  2. After a through inspection of the sealing surface

Replace the shaft only if severe pitting is found. If corrosion in the lip seal area is slight, clean the surface of the shaft using a crocus cloth. Replace the shaft only if the leakage cannot be stopped by first polishing the shaft with the crocus cloth.