Does PS fluid thicken? PS pump whines - only when cold - Saab General Bulletin Board - Saabnet.com
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Does PS fluid thicken? PS pump whines - only when cold
Posted by 900Fun [Email] (more from 900Fun) on Mon, 13 Feb 2012 10:49:38
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ok,
'97 900SE 2.0T hatchback
150k mi, replaced one PS hose this summer due to leak... and in the process put in a bunch of PS fluid while leaking before got it fixed right - including some cheap PS fluid from the local gas station in a pinch.
Now this winter, when it drops below ~20F, the power steering whines a little in the morning, pulling out of the driveway. On the worst mornings, ~0F, complete Power Steering loss making that initial turn out of the drive, with significant PS 'whine' noise. Sound lessens as I drive, and even if I make a no-speed turn a 1/4 mile later (out of my neighborhood), the whine is pretty much gone, and completely gone in just a few minutes.
So - does PS fluid thicken at low temps that could be causing my issue? Fluid level has remained constant. Operates fine after running for just a little while (long before engine is up to full temp).
The only difference I can think of (from last year, when I don't recall issue) is that I replaced the 'lower' PS line and used off-brand fluid.
Any thoughts appreciated!
-Nick
posted by 69.174.5...
Posts in this Thread:
- Does PS fluid thicken? PS pump whines - only when cold, 900Fun, Mon, 13 Feb 2012 10:49:38 <-- Viewing This Message
- "off brand fluid" - You answered your own question, MI-Roger , Mon, 13 Feb 2012 15:30:56
- Re: Does PS fluid thicken? PS pump whines - only when cold, Craig, Mon, 13 Feb 2012 11:16:01
- Re: Does PS fluid thicken? PS pump whines - only when cold, Dick in Falls Church, Mon, 13 Feb 2012 11:02:37
- Re: Does PS fluid thicken? PS pump whines - only when cold, Simon S, Mon, 13 Feb 2012 10:56:09
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