Fluid for rebuilt PS Pump?
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Posting Guru
Joined: Mar 2006
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From: Williamson, NY
Fluid for rebuilt PS Pump?
I rebuilt my 77 power steering pump and have totally drained the entire system and installed new PS hoses. The owners manual states that it should be filled with power steering fluid. Is one manufactures power steering fluid as good as anothers? I've ordered an inline magnetic power steering filter to install in the PS return line, but I don't think it will be a very clean looking install seeing how the distance from the power steering cooler fitting to the PS return fitting is only about 4 inches and I think the filter will be at least that long. Anyone ever hooked up one of these filters and have pictures of their installation?
Post Fiend
Joined: Sep 2006
Posts: 14,325
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From: Island Southeast Alaska
I have always used tranny fluid with no ill effects. On Rusty as I got a leak and have to top it off twice a month I use 5W30 or 40 with no problems as It is just a hydraulic pump. If and when I overhaul it she will get type F.
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From: Williamson, NY
Originally Posted by scottie2hottie
I gave ya that advice too 
STP makes plain old PS fluid, and that's what I'll stick to with my '01
STP makes plain old PS fluid, and that's what I'll stick to with my '01Trending Topics
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Joined: Mar 2006
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From: Williamson, NY
Originally Posted by Mil1ion
The Ford Plastic pump takes F type transmission/power steering fluid.
Bill will have a Ford number for it.
Bill will have a Ford number for it.
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Senior User
Joined: Aug 2005
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From: southern Indiana
I have used both in my 78 without problems.Now with my 98 windstar I used what the ford dealer said to use,Atf.My power steering pump was always a little noisy,But Atf made it worse.After driving a few hundred miles with Atf I flushed the system and switched to power steering fluid.And the pump was alot quieter.
Tim
Tim
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Joined: Mar 2006
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From: Williamson, NY
Originally Posted by 1975Ford
These PS system need Type F transmission fluid. Make sure to properly bleed air from PS system. Or internal damage to pump can result.
Postmaster
Joined: Jul 2005
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Here a thread I posted awhile back https://www.ford-trucks.com/forums/s...96&postcount=2
https://www.ford-trucks.com/forums/s...51&postcount=8
https://www.ford-trucks.com/forums/s...51&postcount=8
Mountain Pass
Joined: Nov 2006
Posts: 130
Likes: 3
From: Egypt, AR
The guy I bought my 78 from put a new plastic steering resivour on it and put in type f fluid. 1 week later the steering started growling and locking up. I drained it out and put in stp power steering fluid and not had any problems since. That has been a year ago now. I am putting power steering fluid in all mine now.