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D4 MY13 - Whine Cornering Left On Acceleration
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Robbie
 


Member Since: 05 Feb 2006
Location: ¯\_(ツ)_/¯
Posts: 17932

United Kingdom 2013 Discovery 4 3.0 SDV6 HSE Auto Baltic BlueDiscovery 4
D4 MY13 - Whine Cornering Left On Acceleration

Just noticed a slight whine under acceleration. The pitch varies with speed and can only be trigger by accelerating whilst cornering left. The noise is very turbine-like and is pleasing to the ear, if it wasn't produced under such set conditions.

The noise is similar to TC whine, but clearly if it was that the steering would not come into it. The conditions to trigger the noise are similar to a failing wheel bearing but that usually develops into a lower-pitched rumble. So that leaves the front diff....

Going against my thoughts regarding the front diff is that it has only cover 28k, there is no additional noise when the diff is working at the extremities and the noise is very low in volume. If there is any additional noise in the vehicle then the whine is inaudible. This means it may have been with me for a while as I usually drive with the radio on.

After 8 years my D3 had the original wheel bearings and diffs with zero issues.

So is my logic sound? I'm I being paranoid?

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Post #142860518th Feb 2015 8:18 am
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euangibson
 


Member Since: 24 Dec 2010
Location: Borders
Posts: 11027

Scotland 2012 Discovery 4 3.0 SDV6 HSE Auto Firenze RedDiscovery 4

Logic sound ? Yes
Paranoid....you own a Land Rover,so yes
If it is your front diff,you've got 2k more out of it than I did Whistle
At 28k,tyre wear is another possibility....weirdly,my tyres make a whine that sounds mechanical .....what rubber are you running ?
 "Better to remain silent and be thought a fool,than to speak out and remove all doubt" ?.....what rubbish...

Locking rear E-diff
RLD spare wheel protector & sump guard
Extended roof rails
Series 111 mudflaps
Black side tubes,grill and vents
Timed climate remote
Hids4u interior lights

D4 Firenze my2012 HSE
D3 Java 2005 SE manual (sold,sadly,thanks for the memories)
1966 '88 Series 2a....still starts in the morning better than I do... 
 
Post #142860718th Feb 2015 8:26 am
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euangibson
 


Member Since: 24 Dec 2010
Location: Borders
Posts: 11027

Scotland 2012 Discovery 4 3.0 SDV6 HSE Auto Firenze RedDiscovery 4

Rob...here is my quote from 18 months ago..
euangibson wrote:
?.......where it sounds vaguely like a turbine engine powering down quickly......that is exactly how my previous failed wheel bearing sounded,making me think that was the culprit.
 "Better to remain silent and be thought a fool,than to speak out and remove all doubt" ?.....what rubbish...

Locking rear E-diff
RLD spare wheel protector & sump guard
Extended roof rails
Series 111 mudflaps
Black side tubes,grill and vents
Timed climate remote
Hids4u interior lights

D4 Firenze my2012 HSE
D3 Java 2005 SE manual (sold,sadly,thanks for the memories)
1966 '88 Series 2a....still starts in the morning better than I do... 
 
Post #142861218th Feb 2015 8:31 am
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