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powersteering hiss

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Old Jan 23, 2003 | 10:41 AM
  #1  
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laha
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powersteering hiss

PS hisses when making sharp turns in my F250 psd 4wd
with foot on brake, noise is greatly reduced have changed ps pump with no affect. any suggestions?
 
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Old Jan 23, 2003 | 10:45 AM
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spartamouse1
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powersteering hiss

with your foot on the brake your pump is working the hydro booster for the power brakes the same time you are useing the pump to try to turn the wheels sharp. it is hard for the pump do do them both at the same time.
 
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Old Jan 23, 2003 | 10:52 AM
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laha
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powersteering hiss

Originally posted by spartamouse1
with your foot on the brake your pump is working the hydro booster for the power brakes the same time you are useing the pump to try to turn the wheels sharp. it is hard for the pump do do them both at the same time.
thanks for response am trying to find way to stop hiss as it only has recently begun
 
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Old Jan 23, 2003 | 12:05 PM
  #4  
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powersteering hiss

sometimes if you draw a vacume on the pump, it takes the excess air out and quites down. this helps most of the time.
 
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Old Jan 23, 2003 | 07:02 PM
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powersteering hiss

I just figured all fords do it, mine does lol.....
 
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