Go Bottom4600 HST noise in C range over 2500rpm
 | Ranger350
Join Date: Sep 2003 Posts: 11 Ontario, Canada 
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2004-03-19 80414
when travelling down a road, 2wd, at over 2500rpm usually, or going down a hill, there seems to be a noise comming from the area under where you put your feet. It almost sounds like a bearing, its hard to explain the noise, not high pitch or anything. it is 4x4, but turned off
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 | Billy
Join Date: Oct 1999 Posts: 975 Southeast Oklahoma 
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2004-03-19 80415
It's nothing to worry about. HSTs all do it in high range. I would call it a whining noise. ....
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Add Photo4600 HST noise in C range over 2500rpm
 | Chief
Join Date: Jul 2003 Posts: 4297 Southwest MiddleTennessee 
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2004-03-19 80429
As Billy mentioned, the hydro whine and also perhaps some gear from the C range gears at that particular rpm or when dragging without load. ....
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Add Photo4600 HST noise in C range over 2500rpm
| Ranger350
Join Date: Sep 2003 Posts: 11 Ontario, Canada
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2004-03-19 80437
ok, its not the hydro wine thats for sure. I dont think its right though. i compare the sound to a box fan (computer fan) when it starts to wear out it makes that vibration noise. i think it has something to do with the output to the front axle, not positive though. oh, my pto wont shut off either, its not electrical, i think there is a stuck spool in the pto valve? ....
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Add Photo4600 HST noise in C range over 2500rpm
| Ranger350
Join Date: Sep 2003 Posts: 11 Ontario, Canada
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2004-05-31 87389
Ok, the noise is (or was) the driveshaft shield going to the front axle. Quite loud actually. the PTO problem was a stuck spool right behind the solenoid. ....
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