DesertRat
Member Since: 17 Nov 2006
Location: Herts
Posts: 49
  
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Agree with Zebadee, back off the throttle and let the vehicle pull off at low revs for 1/2 mile and roar disappears. 
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 10th Oct 2009 9:09 pm |
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Iain G
Member Since: 31 Jan 2009
Location: Filey
Posts: 430
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Never mind how to stop the noise, I want to know how to make it continuos
I think it sounds good - a bit like going through that 'bean can' exhaust phase when you just passed your test 
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| 10th Oct 2009 9:26 pm |
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Reggieb
Member Since: 13 Sep 2007
Location: Watford, Herts.
Posts: 707
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I love the noise, sounds like a big V8..  but it vanishes within 30 seconds..  TDV6 HSE - Light Guards - White Reflective Sticker
Club--Engel
Club--Satnav on the move (Thanks Pete)
Club--Kumho KL71 (265/70 17) they kick!
Club--Three Musketeers
Club--GNVP Sump Guard (The nuts)
Disco3Club
Never take life seriously. Nobody gets out alive anyway.
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| 10th Oct 2009 11:02 pm |
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mattyla
Member Since: 15 Jul 2009
Location: NW
Posts: 20
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mine sounds the same when started from cold....I had always put the noise down to the fan
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| 28th Dec 2009 9:10 am |
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purpledogsailing
Member Since: 24 Apr 2010
Location: dorset
Posts: 1
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mine started off with a roar from cold but now roars intermittently but constantly thru the gears,can cause this to happen by changing down hard.Believe me this is not something you would want to hear all the time.
Landrover have said that this is caused by the injector pump which has been replaced but no improvement found.
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| 24th Apr 2010 11:52 pm |
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Reggieb
Member Since: 13 Sep 2007
Location: Watford, Herts.
Posts: 707
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More likely to be the viscose coupling on the fan IMHO TDV6 HSE - Light Guards - White Reflective Sticker
Club--Engel
Club--Satnav on the move (Thanks Pete)
Club--Kumho KL71 (265/70 17) they kick!
Club--Three Musketeers
Club--GNVP Sump Guard (The nuts)
Disco3Club
Never take life seriously. Nobody gets out alive anyway.
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| 25th Apr 2010 12:12 am |
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billy56
Member Since: 23 May 2008
Location: Larne
Posts: 85
 
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This is a old one!! but having driven V8,s and the odd V12 mine has never sounded like
anything like an engine 
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| 25th Apr 2010 12:34 am |
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mikeknowle
Member Since: 04 Jun 2009
Location: Solihull
Posts: 8
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I love my morning roar.
Viscous coupling or otherwise.
Please leave my roar alone.
It's the first big smile of my day
How to make it roar all day long? D3 HSE...120k and climbing.
----------------------------------------------------
My other car is a K1600GT, look it up if you have to...
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| 7th May 2010 11:08 pm |
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marsie
Member Since: 28 Feb 2010
Location: Sheffieldish
Posts: 1807
  
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it may sound good but it plays havoc with the fuel economy,my old rangerover viscous coupling failed and stuck in and it cost me an extra 5mpg  not good when i was only getting 12 to start with 
Paul  Previous Discos
1989 200tdi 3dr
1994 300tdi ES
1995 3.9 ES (x3)
2000 4.0 adventurer
2001 4.0 ES
2005 D3 HSE (zambesi silver)
2007 D3 SE (Lugano teal)
2011 D4 XS (Baltic Blue)
2008 D3 HSE PREMIUM (buckingham blue)
2009 D4 XS (Nara bronze)
2006 D3 Metropolis (Java Black)
2012my D4 HSE (indus silver)
2013 D4 XS (Firenze red)
Current 2017 D5 first edition (silicone silver)
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| 3rd Jun 2010 8:48 pm |
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jamesbond007
Member Since: 26 Jan 2010
Location: Algarve, Portugal
Posts: 263
 
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Difficult to talk about fuel economy with a D3...
I love that roaring noise too when cold (all relative here... 8) . Had it with the Defender when hot.  The older I get, the better I was.
Discovery 3 TDV6 Auto (BAS remap) after Defender TD4 110 Crew Cab and 1964 SIIA 88.
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| 8th Jun 2010 3:29 pm |
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lordwinslow
Member Since: 28 May 2008
Location: Londonderry, NH
Posts: 7
 
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I love the roar too, nice throaty low sound. Proper for a vehicle like the LR (Discovery) 3.
Winslow ---
1996 LR Discovery SD
2005 LR LR3 SE V8
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| 10th Jul 2010 4:57 pm |
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DG
Site Moderator
Member Since: 12 Dec 2005
Location: The Gaff
Posts: 50978
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It is not a viscous fan...it's an electronically controlled fan with a clutch controlled by a PWM signal dependent upon various engine temperature readings  21 year LR veteran > D2 GS 2003 > D3 S 2006 > D3 HSE 2009 > D4 HSE 2013 > D4 HSE 2015 > D5 HSE 2018 > DS HSE R-Dynamic P300e 2021
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| 10th Jul 2010 6:00 pm |
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wslr
Member Since: 21 Feb 2010
Location: Somerset/Devon
Posts: 39
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To quote from the bible:
Quote:The viscous fan unit is electronically controlled by the
ECM to optimise fan speed for all operating conditions.
NOTE: If the electrical connections to the viscous fan
are disconnected the fan will 'idle' and overheating may
result. The ECM stores the appropriate fault codes in
this case.
Clever, eh? Except when it stops working properly...
Maybe a powertrain software update could reduce roar?
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| 10th Jul 2010 8:12 pm |
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PaulP
Member Since: 04 May 2007
Location: Barcelona
Posts: 4317
 
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DG wrote:...it's an electronically controlled fan with an electro-viscous clutch controlled by a PWM signal dependent upon various engine temperature readings
ISTR that it is also controlled by various other loading requirements such as the air con compressor state and other bits and bobs 2006 Discovery 3 TDV6 SE Auto Buckingham Blue
2007 Golf GT DSG
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| 10th Jul 2010 8:17 pm |
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DG
Site Moderator
Member Since: 12 Dec 2005
Location: The Gaff
Posts: 50978
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I meant that it's not a conventional viscous unit  21 year LR veteran > D2 GS 2003 > D3 S 2006 > D3 HSE 2009 > D4 HSE 2013 > D4 HSE 2015 > D5 HSE 2018 > DS HSE R-Dynamic P300e 2021
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| 10th Jul 2010 8:22 pm |
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