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5.0 Mustangs Tech Forum

5.0L Talk | 5.0L Tech | 94-95 Tech | 1979-1993   1994   1995   Upload Pictures | Timeslips | Power Adders | Mustang Tech 


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Unread 01-13-2010   #1 (permalink)
DCT915.0LXHATCH is offline Apprentice

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Default Black power steering fluid?

i have put about 10 bottles of power steering fluid in my pump and after every bottle i use a turkey baster and get the fluid out and put fresh in and in a day or two it will be black again. replace the power steering pump? or is it something more serious?
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Unread 01-13-2010   #2 (permalink)
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are you putting in actual power steering fluid, most fords use ATF as power steering fluid.
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Unread 01-13-2010   #3 (permalink)
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automatic transmission fluid? Ive never heard of that but no im using power steering fluid with mercon i do believe.
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Unread 01-14-2010   #4 (permalink)
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when you add the fluid you want to turn your wheel back and forth a few times, that means full steer right to left. after that suck out all the fluid you can, repeat the process until its clean. Turning the wheel helps cycle the fluid through the rack and makes it easier to flush out. Hope this helps.
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Unread 01-14-2010   #5 (permalink)
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its hard to get all the fluid out of the system, id say about 70% stays in even after you empty the resivior, in my opinion if you are dead set on having clean fluid i would disconnect the lines turn the wheel and have all the fluid pump out then turn the pump by hand a few times and get all the fluid out of there, then hook it all back up fill it up bleed the system leave it like that and then do it all over again, but in my opinion if it works who cares what color the fluid is ive had fords with 300K miles never changed the PS fluid
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Unread 01-14-2010   #6 (permalink)
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It's turning black because the fluid is breaking down and that reduces it's lubricity.
It sounds like your rack is getting pretty worn, causing all the black fluid.
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Unread 01-14-2010   #7 (permalink)
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so whats the fix?
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Unread 01-14-2010   #8 (permalink)
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Possibly a new power steering rack.
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