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Home > Technical > Whirring Noise?

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jed.w

Member Since: 02 Jan 2011
Location: West Lancashire
Posts: 191

Whirring Noise?

I have developed a whirring noise on deceleration. No noticeable noise on acceleration up to about 50, but if you lift off the gas, when the revs drop and the car slows there is a definate whirring noise.

If I sit in Neutral and rev the engine up to 3000 and lift off, there is no noise.

I wondered if it could be the alternator or the discs rubbing on the back plates?

Any ideas?

jed.w SDV6 HSE Sport2 - Santorini Black, Ebony Interior, Pano Roof, Things I haven't found yet!

TDV6 HSE, Java Black, Black Premium Leather, Privacy, LR Side Steps, Smoked Side Repeaters, SC Vents and lots of toys!

Fri Jan 06 2012 7:43pm

RRSTDV8

Member Since: 13 Aug 2011
Location: Northamptonshire
Posts: 9095

2012 Range Rover Sport SDV6 HSE Orkney Grey

Presumably if it was the alternator it would make the noise even in neutral?

Perhaps it's a diff issue? 2012 SDV6 - it's missing a couple of cylinders
2008 TDV8 - it was a labour of love and is much missed

Sat Jan 07 2012 1:41am

smurf

Member Since: 16 Aug 2010
Location: cheshire
Posts: 81

My whirring noise lead to the alternator,the bushes stick so maybe why it is intermittent

Sat Jan 07 2012 10:19pm

smurf

Member Since: 16 Aug 2010
Location: cheshire
Posts: 81

My whirring noise lead to the alternator,the bushes stick so maybe why it is intermittent

Sat Jan 07 2012 10:19pm

Supacat

Member Since: 21 Feb 2009
Location: West Yorks
Posts: 497

2010 Range Rover Sport TDV8 HSE Stornoway Grey

Smurf - looks like the sticking problem has migrated to your keyboard as well

Anyone else noticed that in the service manuals, etc, alternators are now called generators?

Sun Jan 08 2012 9:52am

firstinretail

Member Since: 30 Jul 2011
Location: bolton
Posts: 461

2005 Range Rover Sport 4.4 V8 Siberian Silver

i get a whirring noise every 4-5 days and lasts about 10mins and costs £100.........................

think they could quieten down petrol pumps these dags

Sun Jan 08 2012 9:54am

smurf

Member Since: 16 Aug 2010
Location: cheshire
Posts: 81

iPhone & sausage fingers

Sun Jan 08 2012 5:39pm

Bob.

Member Since: 03 Feb 2009
Location: SWest
Posts: 275

Supacat wrote:

Anyone else noticed that in the service manuals, etc, alternators are now called generators?

Think that when Ford owned LR all new service manuals were written in American instead of English.

Sun Jan 08 2012 6:15pm

jed.w

Member Since: 02 Jan 2011
Location: West Lancashire
Posts: 191

Turns out to be a near side front wheel bearing!

Fixing it tomorrow. SDV6 HSE Sport2 - Santorini Black, Ebony Interior, Pano Roof, Things I haven't found yet!

TDV6 HSE, Java Black, Black Premium Leather, Privacy, LR Side Steps, Smoked Side Repeaters, SC Vents and lots of toys!

Mon Jan 09 2012 9:37pm

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