Question about Mercury Sable

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I have a 2002 Mercury Sable 6 cyl. 3.0 engine with a power steering pressure problem. The problem that appears is when the car is turned off the power steering fluid backs up to the top and leaks out the vent hole. I want to know what the cause of this is and what the fix is. Thank You. Ron

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  • Ron Fredey Aug 03, 2010

    Thank you very much. Will check out the boots first to see if they're filling. I appreciate the answer.




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The problem can be in power steering pump and the rack and pinion assembly. But if pump and pinion checked ok.then,it could be the silencer in the high pressure line or the filter in the low side. There might be a screen in the bottom of the pump reservior that has become restricted. But if you replaced or checked everything and the problem is same.then, The problem is not the power steering pump. Your steering rack seals have failed and you need to rebuild or replace the steering rack. This is a common problem with the Sable of your vintage. To confirm, check out the tie rod boots.That when the car is running the boots fill with fluid. The rack boots actually fill while driving, draining the reservoir and if the boot(s) don't rupture, the fluid runs back into the reservoir when the engine is shut down and causes the fluid to squirt out the top. Thanks. keep updated for any more can rate this solution and show your appreciation.

Posted on Aug 02, 2010


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