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Power Steering reservoir under pressure?

 
Post new topic   This topic is locked: you cannot edit posts or make replies.    NAIOA Impala Forums Forum Index -> 2000-2005 General Impala Discussion
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Walter2
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PostPosted: Fri Mar 18, 2011 4:17 am    Post subject:  Power Steering reservoir under pressure? Reply with quote

When I removed the fill cap to the power steering pump I herd a slight pop sound (engine was warm at the time). Indicating that the reservoir was under a small amount of pressure. Is this normal? I always assumed that the cap was vented. Thanks for your help.
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barnettimpala
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PostPosted: Fri Mar 18, 2011 4:23 am    Post subject:   Reply with quote

Every car I have ever checked has been like this. I'd say yes it is normal. And btw, wrong section this should be under 2000-2005 engine.. or General.

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Pitch Black SS
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PostPosted: Fri Mar 18, 2011 12:10 pm    Post subject:   Reply with quote

the PS system is a hydrolic system and is under a lot of pressure. For some of that pressure to bleed through the pump back into the res. is fairly normal.

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DefEddie
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PostPosted: Fri Mar 18, 2011 8:41 pm    Post subject:   Reply with quote

There is also a rubber gasket under most power steering caps,should seal it off.
I have an aluminum cap I use to pull vacuum on power steering pump for air evac,it seals with simply an oring so I imagine the rubber gasket on the cap does a nice job of not allowing it to vent pressure buildup.
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9C3
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PostPosted: Thu Mar 28, 2013 8:26 pm    Post subject:   Reply with quote

But yet with any car I've ever owned, I can start the engine, remove the cap, let it run for 5 minutes, turn the steering wheel from side to side, & never spill a drop of ps fluid. So to me, there is no pressure build up. GARY

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PostPosted: Mon Apr 01, 2013 11:36 am    Post subject:   Reply with quote

really old thread.....

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