S-type Transmission Whine

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Stephen Horrillo - 12 Sep 2007 20:28 GMT

I recently bought a 2008 S-type. The car is SUPER quiet but I do hear a
whining sound coming from the rear end at about a quarter throttle. It stops
at heavier acceleration and stops when there's no gas applied. Is this
normal?

Thanks,

Stephen
http://spankthebank.org

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old man - 12 Sep 2007 20:53 GMT

No
Sounds like maybe a bearing

>I recently bought a 2008 S-type. The car is SUPER quiet but I do hear a
> whining sound coming from the rear end at about a quarter throttle. It
[quoted text clipped - 6 lines]
> Stephen
> http://spankthebank.org

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Blake Dodson - 13 Sep 2007 06:26 GMT

On Sep 12, 12:28 pm, "Stephen Horrillo"
<advan...@REMOVETHIScomcast.net> wrote:

> I recently bought a 2008 S-type. The car is SUPER quiet but I do hear a
> whining sound coming from the rear end at about a quarter throttle. It stops
[quoted text clipped - 4 lines]
>
> Stephenhttp://spankthebank.org

In a really quiet car you can hear the gears meshing in some
gearboxes. Set at the factory most gear sets run for thousands of
miles without a noise, but on occasion a few get past that make some
noise.

That said lets consider that you don't know the history of this car.
Perhaps Skippy down at the oil can drained your rear end gear lube,
but gosh, he did not refill it. You can drive many miles before slight
wear of the ring gear becomes noticed as a harmonic whine. You go to
the shop and they discover its empty.. That noise that got you back to
the shop is now permanently worn into the gearset.

Who knows. I will tell you that the gearset is perfectly sound and
will last several years making that slight whine. High strength sets
whine. My Supra whined... wait that was the Turbos. ;-) Seriously. Its
only an annoying sound, but check the oil level at least. Its part
throttle whine, the gears are singing.

BD

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Stephen Horrillo - 14 Sep 2007 03:12 GMT

> > I recently bought a 2008 S-type. The car is SUPER quiet but I do hear a
> > whining sound coming from the rear end at about a quarter throttle. It
[quoted text clipped - 25 lines]
>
> BD

The car is brand new. Only 1200 miles so far and it whined since I got it.

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Paul M. Cook - 17 Sep 2007 17:38 GMT

> > > I recently bought a 2008 S-type. The car is SUPER quiet but I do hear a
> > > whining sound coming from the rear end at about a quarter throttle. It
[quoted text clipped - 27 lines]
>
> The car is brand new. Only 1200 miles so far and it whined since I got it.

Take it to the dealer. Don't take no for an answer if they say it's normal.
You have a Jaguar warranty, use it. Could be rear wheel bearings, could be
the differential. No possible way to know other than to put it on a hoist,
run it up and take a stethoscope to the suspect areas. You should not hear
a whine, it is completely abnormal. My 01 XK8 does not do that and it has
87K miles. You bought a high-end new car and you have every right to expect
it to work as such.

I'm betting on the differential.

Paul

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