GM Service Manual Online
For 1990-2009 cars only

Lip seals seal the rotating shafts. Lip seals require special treatment. Lip seals are used on the steering gear at the following locations:

    • The pinion shaft
    • The pump drive shaft

When a leak occurs in these areas, perform the following steps:

  1. Inspect the sealing surface.
  2. Clean the sealing surface.
  3. Replace the seal.

If corrosion in the lip seal contact zone is slight, clean the surface of the shaft using a crocus cloth. Replace the shaft only under the following conditions:

    • You find such severe pitting that cleaning the shaft will not stop the leak
    • Unit Repair procedures indicate that the shaft is replaceable