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Whining noise
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tomp1418
 


Member Since: 07 Apr 2014
Location: Lancashire
Posts: 158

United Kingdom 
Whining noise

So I’ve noticed a a whining noise related to the revs ie the more you rev the car the more it seems to increase. It’s making the noise even when you rev it sat in park or when driving. Usually sounds worse when you let the revs off or going up through the gears after the auto box changes like when setting off. I’ve no performance issues at all or warning lights but this noise is there. I’ve been reading up and it could be the alternator bearings or the idler? Would this make a sort of whining noise that increased with rev speed? D4 2010 3.0 cheers Discovery 4  
Post #233473626th Apr 2023 8:42 pm
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disco chris
 


Member Since: 25 Apr 2022
Location: London
Posts: 245

United Kingdom 2005 Discovery 3 TDV6 HSE Auto Buckingham BlueDiscovery 3

Hmm... happens to me too but only when SWMBO is in the car Laughing

On a serious note... I do have the same thing in my D3, need to look into it at some point but I am assuming its one of the pulleys / bearings on its way out. I'm not aware of anything else that would cause the noise  
Post #233478827th Apr 2023 9:09 am
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rrhool
 


Member Since: 28 Aug 2014
Location: Norfolk
Posts: 4400

United Kingdom 2007 Discovery 3 TDV6 SE Manual Zermatt SilverDiscovery 3

Had similar in my D3 recently, turned out to be the aux belt tensioner. Richard


D3 SE 2007. Triumph 2.5Pi 1973. Ferguson TEA20 1948.



Discovery 2 4.0 ES 2001- Gone
Discovery 1 300Tdi ES '95 - Gone
Range Rover Classic '79 - Gone  
Post #233479027th Apr 2023 9:25 am
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Froogle-Yorkshireman
 


Member Since: 28 Oct 2010
Location: Yorkshire
Posts: 297

United Kingdom 2016 Discovery 4 3.0 SDV6 Landmark LE Auto Waitomo GreyDiscovery 4

See my post here from last year:

https://www.disco4.com/forum/chirping-sound-201471.html

If that's the same noise then it's likely the tensioner as the good folks on here predicted.

Tensioner, pulley and alternator needed swapping out in my case as I had a roadside failure.

Done under warranty and the dealer even managed to get me a new battery Shocked  
Post #233484427th Apr 2023 6:26 pm
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