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Old 03-17-2008, 10:00 AM
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Power steering fluid

My fluid is a bit low. not alot though. I see no oil anywhere around it. is it normal to use a small amount? or where else should I look for leaks to be safe?

also, my book says to use Mercon ATF, which I asume is auto trans fluid, but I want to be sure before I top it off. I thought I had heard ATF could be used in power steering before, but better safe than sorry
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Old 03-17-2008, 10:03 AM
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I use hydraulic fluid for mine..... i have had BAD experiences with putting ATF into power steering systems, but if thats what your manual says....... Ive seen it ruin entire systems (this was on a couple of chevys)
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Old 03-17-2008, 10:19 AM
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what does your manual say?
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Old 03-17-2008, 10:21 AM
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i dont have a manual...but ive used hydraulic on my chevy trucks and ford trucks without any problems.....
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Old 03-17-2008, 04:19 PM
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anyone else?
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Old 03-17-2008, 04:28 PM
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look down on your steering box, see if there is any fluid on that. check all the lines too.
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Old 03-17-2008, 04:49 PM
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My 2001 manual said Mercon ATF so I went tonight and bought 4 quarts of Mobil 1 synthetic ATF (which is for Mercon). That seems to be what most people are putting in this model of the 7.3l. I'm hoping this will quieten down my PS pump which is filled with black PS fluid. Probably has never been changed in 229k miles...
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Old 03-18-2008, 06:29 AM
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ATF is correct for the PS system. You shouldn't be loosing any, you must have a leak somehwere. Use the synthetic ATF and there will be a huge difference. If you have never done it, I would flush the entire system and refill with synthetic, IIRC 3+ quarts for a complete flush. A mirror on a stick and a good flashlight will help find leaks.

NCH
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Old 03-18-2008, 06:39 AM
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I just went through my steering system. First was the return line, still leaked.
Then a new pump, shaft was loose and would move 1/4" in and out. Still leaked.
Cleaned everything off with carb cleaner, started truck and moved wheel left then right.
Drip was on steering box, pulled it and top plate was cracked around back bolt. New box and it no longer leaks. I use transmission fluid.
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Old 03-18-2008, 11:31 AM
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how do you drain it?
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