Question about 1999 Saab 9-5
Power steering pump failed, replaced with new pump from Saab. Replaced correct oil in pump. After 1 week stopped working correctly. When slowing down at junction and turning would stop operating. When revs higher would kick back in? Have had steering rack removed, checked and overhauled - no apparent faults. Replaced 1 high pressure pipe. Other pipe on back order no ETA. Checked thoroughly through. Today, coincidentally.......engine oil level checked and low. 3 litres put in and pump now working faultless after several road tests. Is this a fluke or could engine oil level effect revs and pump operation? HELP ME PLEASE!
There may have been air trapped in the power steering system. Keep a close eye on the system & your oil. Make sure your not leaking (wrong filter etc.)
Posted on Apr 09, 2017
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Posted on Jan 02, 2017
SOURCE: Saab 9-3 turbo problem!
Sounds like the recirculation valve (aka diverter valve) is failing. A lot of turbo cars that have them end up with failures from them, since they're usually cheaply made from plastic, and the diaphragms inside don't hold up over time.
What the valve does is, when you shift, there is a backsurge of boost air that hits the closed throttle plate. The diverter valve (DV) opens and dumps the air back into the intake piping. It's kept closed during acceleration by spring and manifold pressure. When you shift, the pressure drops on the backside of the valve and it opens, venting the excess boost air. If your valve is failing, just the pressure of boost in the intake piping could be pushing it open, causing the acceleration to slow. I'd look into a replacement diverter/recirculation valve.
Posted on Jul 31, 2008
It's possible that your clutch needs bled and/or have the fluid level checked in the clutch reservoir. The only other thing I can think of that would cause the problem that you're explaining would be that perhaps your throw-out bearing is starting to slip or maybe your pedal isn't auto-adjusting properly. Not too much more that could be causing the problem you described. Hope this helps and have a great day!
Posted on Nov 23, 2008
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