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noelp3
11-19-2006, 10:28 AM
Hello All,
I recently bought a beautiful black 1999 WS6 with 33,OO0 miles on it. I carefully drove it 2000 miles from Vermont to Texas and have since put 900 "spirited" miles on it. ( smoked the tires a couple of dozen times). My car has developed a whine whenever I criuse without applying the throtle. I wan't to know if this is realated to the rear end fliud and what is the best way to add/change this fliud yourself?
Thanks in advance!
NvyBluMtlc02WS6
11-19-2006, 01:29 PM
I too have a whine. Mine starts when the car is between 50mph and 60mph. Slight whine at those speeds and it will increase if I give it a little gas. Once I'm past 60, or below 50 it doesn't do it.
INMY01TA
11-19-2006, 06:15 PM
In my experience, changing the fluid never helped rear diff whining.
svt_eater
11-19-2006, 08:10 PM
If someone replaced the fluid however, and didn't put in the GM additive, that could cause the problem. However, if they used Royal Purple, as I did, you don't need the GM additive as RP includes it in their diff fluid.

For the price of changing it, you may want to try it anyway for peace of mind. You can do a visual inspection if you pull the diff cover off as well.

If it has the stock diff cover, you have to remove it to drain the fluid. I installed a SLP/AAM diff cover so I can change the fluid easily the next time as it has a drain plug. To refill it, there is a bolt on the upper front side of the diff.
INMY01TA
11-21-2006, 08:49 PM
( smoked the tires a couple of dozen times

Why your rear end is whining.
NvyBluMtlc02WS6
11-21-2006, 11:30 PM
Mine doesn't sound like it's coming from the rear. Noticed it ever since i bought the car. Took it back in and they said they couldn't find anything. I was just wondering if anyone else had the same thing.
christianjax
11-22-2006, 06:04 AM
mine whines too. It says "I want to go faaaaaaster.":bomb:
FERNANDO
11-23-2006, 04:24 AM
have you checked your power steering fluid? mine whines after a long drive, i guess the ps cooler doens't work that well.
TheSilverSurfer
11-23-2006, 06:00 AM
Mine whined like that and it was replced at 12,000 mi.
svt_eater
11-23-2006, 09:40 PM
have you checked your power steering fluid? mine whines after a long drive, i guess the ps cooler doens't work that well.

I actually had my power steering pump replaced pretty early on.
FERNANDO
11-24-2006, 03:36 AM
I actually had my power steering pump replaced pretty early on.

it only happens when it gets hot after a long drive. i might get rid of the ps cooler and see if it helps. might be getting hotter than if it wasn't there since it usses the radiator coolent. just like the tb bypas mod.