arch63

I have a 1999 sable 3.0 l sohc that developed a power steering growling noise.The fluid looks aerated(bubbles)in it when I check the fluid level.I changed the fluid but the problem continues and I have lost the mojority of my power assist.It still growls when turning.Can anyone assist me in diagnosing weather it is pump failure,rack failure or something else.Any help would be greatly appreciated. Thanks.

Dr. Disque

first of all, there are no SOHC tauri, they're either DOHC or pushrod. Secondly, it sounds like you have a bad seal somewhere, probably on the rack. It will be expensive to fix if you can't do it yourself as tauri steering systems are really hard to work on.

tbird100636

The aftermarket seems to have an affinity for calling the old reliable 3.0L Vulcan a SOHC rather than a OHV which it is.

arch63

how do i determine if its the pump or rack?

tbird100636

Noisy P/S systems are usually caused by air in the system, which is usually caused by an extenal leak. See if there is any serious leaks. Slight seepage doesn't neccesarily count unless you see fluid dripping off stuff. If there is no major leaks, then you have an internal issue in the P/S pump. Another thing about leaks is that an aerated system can cause the pump to go sooner.

Brotha Sable

I agree with tbird. the air in your system is the cause for your loss of power asist. A power steering system rebuild and/ or new p/s pump is probably nessary.