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Whirring/Whining sound

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  #1  
Old 04-01-2013, 10:19 AM
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Default Whirring/Whining sound

Hey guys,

Just got a new Disco this weekend. Feels good to be back...this one seems in good shape but has a slight whirring and whining sound. I was going through all the normal services and started with the Diffs and TC. When i drained the Diffs, all was good. When i did the TC, its was Dark and frothy (bubbles, looked like a shaken bottle of Coke). there was hardly any metal on the plug so hoping its nothing but is that something that i need to be concerned with?

Also, Checked all the pulleys because there is a whine coming from somewhere. Outside of trying to take the belt off while the truck is running as some have suggested, is there a less dangerous way to check the power steering pump?

Thanks
 
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Old 04-01-2013, 10:24 AM
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the secondary air pump has been said to make a wirring/winning noise, it is located under the hood on the passenger side fire wall.
You TC case should not be dark and frothy, dark is a sign of old fluid and frothy is a sign of being over filled.
 
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Old 04-01-2013, 10:31 AM
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Yard stick to your ear and the suspect pump or pulley bracket keeps dreadlocks away from the fast moving belt. Frothy could also be a sign of previous owner adding too much Lucas oil treatment, or you could have water from the vent tube being blocked and not allowing condensation to vent.
 
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Old 04-01-2013, 12:20 PM
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thanks Guys...

On the whining, i thought originally it was the SAI but it seems to be consistent with the engine RPM's and never stops, just changes in pitch. I will try the yardstick, i'll borrow it from my mom, she prob has a couple lying around she used to smack me with...

On the TC, since i drained it and put fresh fluid in there do i need to do another change in a 1,000 miles or just leave it until the next change?

Thanks as always
 
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Old 04-01-2013, 12:38 PM
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I have the same problem..
I replaced the power steering pump last year and it still whines.

I found the whine stops when you loosen the belt.

Here is how I tested it.

 
  #6  
Old 04-03-2013, 09:35 AM
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If you have ACE it could be the ACE pump. Mine whines a small bit, flushed it, no change.
 
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Old 04-04-2013, 02:03 PM
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lol far easier to take the belt off BEFORE starting the engine too
 
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Old 04-04-2013, 02:23 PM
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^Second That^
 
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Old 04-05-2013, 09:10 AM
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Frothy xcase means previous owner prob had a little fun with it in the mud flush everything out real good, reads like your already doing that.
 
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Old 04-05-2013, 02:18 PM
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