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Power steering fluid alternative

 
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Old 06-02-2014, 06:34 PM
rews2
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Power steering fluid alternative

Hi all,

I continue to have a whining power steering pump, at least I think it's the pump, after changing my gearbox. I have done the front end in the air lock to lock thing a few times.
I saw a post about replacing power steering fluid with trans fluid. Does trans fluid have better viscosity for power steering? Curious to what the benefit or draw back would be.
 
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Old 06-02-2014, 10:54 PM
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Old classic Ford trucks used Type F in both tranny & steering. Type F is suppose to foam less under high pressure.
Orich
 
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Old 06-02-2014, 11:17 PM
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The stuff that auto parts stores sell in bottles labeled power steering fluid should be illegal. It's just thin hydraulic oil. It doesn't have any anti-wear or anti-foam additives. It is not what Ford or a good number of other manufacturers recommend.
80s Fords are terrible with power steering noises, the setup on my diesel was very loud. When I did the swap, I refilled the system with Mercon, and it's been fairly quiet since.
 
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Old 06-03-2014, 04:33 AM
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rews2, I recommend adding Lucus Power Steering Stop Leak. Should take the whine right out. It has worked for me.

You do not want to mix ATF & PS fluids, stay with one or the other, is what I've been told.



John
 
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Old 06-03-2014, 05:39 AM
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I put the Lucas in mine when I did the conversion and never had any noise. It was an old pump so I was worried about it leaking, ended up being the box that leaked.....
 
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Old 06-03-2014, 11:57 AM
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Okay thanks guys. I remember the old days of type F trans fluid specific to Fords, not sure though if that still applies things have got so generalized lately.
If I make the jump to ATF do I need to flush the entire system? I just replaced the gearbox and don't want to chance jacking it up.
 
 
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