Date: Tue, 02 Mar 1999 11:11:29 +0200 From: "Roy Björkstrand" <nospamroilonopsamut.fi> Subject: Re: Power steering 91' 900 turbo
Uups, this reply should be one step higher and not to you Ken, sorry. I think that steering is stiff because 1) guide valves are not working propely 2) seals of the "intake of the steering axle" has worn the intake and axle can move sideways (has an effect on functioning of the guide valves). In (I think) 1988 racks "steering axle intake" material was changed from aluminium to steel because there were some problems. It was new to me that also newer models have these symptoms, your saab must have high mileage (?). As Ken mentioned, fluid change might help. In your case (newer model) it might just be that guide valves are simply "dirty" and that´s why they are not working. (Your power steering oil level is OK, isn´t it). In oder to keep your rack in good shape it is important to keep the car moving a little while turning the steering wheel (for example when parking). This reduces a lot forces on your rack and in my opinion it also reduces greatly wear of the ball joints (specially lower). Roy 99 -82 900 -85 900 -91 Ps. I have heard that there is an alternative for replacement of the rack. NOTE! It is illegal at least here. You can drill the intake and "fill" it with a steel pipe installed with cold/heat joint (cold pipe, hot intake).