Suspension & Steering

Steering rack rebuild - IF leaking - inspect with the underbody cover off; a little weeping of the fluid at the rack ends is OK as the end boots really do not seal very well and even less so with age.

Substantial dripping on the underbody cover suggests an established leak. If it has gone to the point where you must top off the reservoir it is an indication that your steering rack is a candidate for a rebuild. This seems to be somewhat of a chronological age-related issue.  It is likely accelerated by corrosion on the rack's rod ends as the inside tie-rod end boots lose their sealing ability and road moisture & debris can get inside the boots contaminating the rack. Replacing the inside tie-rod boots may forestall this issue to some limited extent. There are some comprehensive notes on removing and installing the rack in the document labeled Appendix “A”

There are significant service life advantages to sending in your own rack for a rebuild rather than accepting a swap-out from the rebuilder’s inventory of racks. See Appendix “A”: "Steering rack replacement notes" (Send out rack for a rebuild, remove & install yourself on jack stands, very messy two-session job -  one day to pull the rack, a week later a day to put the rebuild back in.). Also, see Appendix “L” covering how to safely put a 993 on jack stands.

Replace power steering belt - IF not done once in past, I had mine done at 80K

miles when I was having the clutch replaced, a skilled technician can replace this belt without removing the engine or transmission;