Should a Stock Steering Pump on a 99 F250 Turn 38's? - Ford Powerstroke Diesel Forum
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Old 12-11-2010, 10:43 PM
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Should a Stock Steering Pump on a 99 F250 Turn 38's?

...cause mine don't turn them tires.

I'm going to have to pull the water pump soon, thinking it's time to get this issue fixed as well. Would a f350 steering pump bolt right up and have more turning power? Or is the stock pump ok but mine is shot?

Thanks again!
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Old 12-11-2010, 11:07 PM
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Not sure...but mine won't turn 37's if I'm not rolling at least a hair. Been that way since I put them on. They are known to be relatively weak so I haven't bothered to replace mine. Been that way for 4 years now.
-Aaron
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Old 12-11-2010, 11:12 PM
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I had a PSC pump with a stock box it moved 46s the the pump exploded so I went back to stock and I turned 37s like nothing,
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Old 12-12-2010, 04:35 AM
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big tires or stock, the original pump might be ready for replacement... I have no lift, and standard size tires on my F350 and have to be rolling to turn the wheel... this seems to be a common problem. The advice I've gotten is replace the PS pump, and it should cure, or at least help, the problem. Good luck...
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Old 12-12-2010, 10:56 AM
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Thanks for the input.
Dereku - If you turned 37's like nothing it makes me think I should be able to turn 38's, although they are 38-14.50's.

Is there a difference in the F250 and F350 pumps that anyone knows of? Seems like the F350 may have a more powerful pump? Wondering if it would bolt up.
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Old 12-12-2010, 11:05 AM
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No idea I had a new PS pump from ford. I put it in last year, and a reman gear box. Mine all took a dump at the same time.

I have a f250. Maybe you just need to clean your out and put new fluid in. I run synthetic. You could have a clog or something somewhere.
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Old 12-12-2010, 11:17 AM
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Quote:
Originally Posted by FLYING BONES View Post
Thanks for the input.
Dereku - If you turned 37's like nothing it makes me think I should be able to turn 38's, although they are 38-14.50's.

Is there a difference in the F250 and F350 pumps that anyone knows of? Seems like the F350 may have a more powerful pump? Wondering if it would bolt up.
There's no difference in the pumps. The power steering on these trucks have never been something to brag about...
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Old 12-12-2010, 06:09 PM
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Mine won't turn my small 33's. hate it!! OH and it's a new rebuilt pump from advanced auto.
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Old 12-12-2010, 08:39 PM
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Quote:
Originally Posted by dereku View Post
No idea I had a new PS pump from ford. I put it in last year, and a reman gear box. Mine all took a dump at the same time.

I have a f250. Maybe you just need to clean your out and put new fluid in. I run synthetic. You could have a clog or something somewhere.
That's a good idea...is there a way to dump the PS fluid?

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Originally Posted by ju015dd View Post
Mine won't turn my small 33's. hate it!! OH and it's a new rebuilt pump from advanced auto.
That sucks! I want/need to solve this.
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Old 12-13-2010, 04:39 AM
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Originally Posted by FLYING BONES View Post
That's a good idea...is there a way to dump the PS fluid?
Its easy to flush the system. Most people go to a synthetic fluid. Look here
Ford Super Duty Power Steering Flush | Superdutypsd.com
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