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DISCO3.CO.UK > Maintenance & Mods (D4)

Whining noise

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tomp1418

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

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

26th Apr 2023 7:42 pm

disco chris

Member Since: 25 Apr 2022
Location: London
Posts: 292

2005 Discovery 3 TDV6 HSE Auto Buckingham Blue

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

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

27th Apr 2023 8:09 am

rrhool

Member Since: 28 Aug 2014
Location: Norfolk
Posts: 4538

2007 Discovery 3 TDV6 SE Manual Zermatt Silver

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

27th Apr 2023 8:25 am

Froogle-Yorkshireman

Member Since: 28 Oct 2010
Location: Yorkshire
Posts: 303

2016 Discovery 4 3.0 SDV6 Landmark LE Auto Waitomo Grey

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

27th Apr 2023 5:26 pm

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