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Old May 27, 2010 | 01:54 AM
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Hard Steering

What causes hard steering or no assist when truck is at a stand still?

I would have to give it more throttle to turn the steering or wait till the truck starts to move.

Also hard to manuver when in tight places.

What could be the cause...Pump going bad??????
 
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Old May 27, 2010 | 02:34 AM
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Any leaking? How's the PS fluid look?
Sounds like the pump is failing or you have a sticky valve. I don't know where the valve is but it should work just fine at idle.

Try flushing it?
 
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Old May 27, 2010 | 05:51 AM
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How big & sticky are your tires? That can add a significant amount of resistance.

Are you using the brakes at the same time? How is the level and condition of your brake fluid? Our steering uses a hydro-boost system, where the steering & brake systems are somewhat combined.
 
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Old May 27, 2010 | 07:45 AM
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Tires definitely make a difference. When I went to 35" Mt's, turning the tires on dry pavement wasn't gonna happen. Flushing the system out and replacing with mobil 1 and filter made a big difference, but it still wasn't enough to "cure" it. Did the same to my '01, and you can turn the wheel with one finger on dry pavement. It has 34" at's on it. Just didn't seem to do much with my '00. I assume the '00's pump is giving up.
 
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Old May 27, 2010 | 08:29 AM
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Check the air pressure in your tires. Low tires will increase the turning resistance as stated above.

Flush out the PS pump and hydroboost system and install synthetic ATF. This will make a difference, but it might not be enough. With some it cures the problem completely, still others it doesn't.

Here's a thread on how to do it. https://www.ford-trucks.com/forums/4...id-change.html
 
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Old May 28, 2010 | 02:02 AM
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Originally Posted by Visseroth
Any leaking? How's the PS fluid look?
Sounds like the pump is failing or you have a sticky valve. I don't know where the valve is but it should work just fine at idle.

Try flushing it?
No leaks...
Fluid looks fair...
I will try to flush it later

Thanks
 
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Old May 28, 2010 | 02:06 AM
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Originally Posted by papadelogan
How big & sticky are your tires? That can add a significant amount of resistance.

Are you using the brakes at the same time? How is the level and condition of your brake fluid? Our steering uses a hydro-boost system, where the steering & brake systems are somewhat combined.
305/50/20's

yes using brakes, but it does it with brakes off too.
 
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Old May 28, 2010 | 06:54 AM
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Originally Posted by homesteader
305/50/20's

yes using brakes, but it does it with brakes off too.
That is a 32" tire so it should not be that much taller than stock, but it is wider. Might be enough to make it more difficult to move.
 
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Old May 28, 2010 | 07:06 AM
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I've never driven a PSD with smooth, powerful steering at a full stop. Folks here claim such things, but as far as I'm concerned, they're as rare as unicorn tears.
 
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Old May 28, 2010 | 07:25 AM
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Originally Posted by mechelement
I've never driven a PSD with smooth, powerful steering at a full stop. Folks here claim such things, but as far as I'm concerned, they're as rare as unicorn tears.
True, but a flush with synthetic tranny fluid. along with making sure the tires are aired up, will make a difference.
 
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Old May 28, 2010 | 11:35 PM
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Yeah Im thinking nature of the beast, you'll know when the pumps going bad if you think its hard now, Bad pump makes it super freaken hard!
 
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