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Extreamjim
Member Since: 09 Oct 2009
Location: Perth
Posts: 21
  
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| Transmission noise when in high range gears 1 & 2 |
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Hi all,
I am looking for some advice on the noise of the transmission in high range gears 1 and 2.
On a normal day I will start the Disco and drive off and the she will sound quiet (for a 4x4) but occasionally it will sound like it is in low range and has a real power sound (like it does in low range), it does not seems like it has dropped into low range as the revs are the same as it should be for high range, it just sounds like it has a lot more grunt.
any ideas on this?
Cheers,
Jim
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 11th Oct 2009 6:50 am |
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caverD3
Member Since: 03 Jul 2006
Location: Oberon, NSW
Posts: 6922
 
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Could be the thermo clutch operated fan it tends to be more of a growl than a whoosh.   “There are only three sports: bullfighting, motor racing, and mountaineering; all the rest are merely gamesâ€
Ernest Hemmingway
D4 3.0 Active Diff, Adaptive Lights, High Beam Assist, Surround Cameras, Privacy Glass.
D3 2.7:Adaptive Headlights,Electronic Rear Diff,ARB Bar,Blaupunkt Speakers,JVC Powered Subwoofer,Removable Snorkel,Mitch Hitch,Pioneer After Market Head Unit,Steering Wheel Control Adaptor,Remote Adjustable Supension Rod System, Taxside Dual Battery System.
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| 11th Oct 2009 7:16 am |
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Extreamjim
Member Since: 09 Oct 2009
Location: Perth
Posts: 21
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Yep a grawl would be a good definition of the noise, from you responce if it was the thermo clutch operated fan is this normal?
Cheers,
Jim
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| 11th Oct 2009 7:29 am |
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DG
Site Moderator
Member Since: 12 Dec 2005
Location: The Gaff
Posts: 50934
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Please only post your issue in one area of the forum ...thanks  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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| 11th Oct 2009 7:33 am |
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caverD3
Member Since: 03 Jul 2006
Location: Oberon, NSW
Posts: 6922
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There was a post about it recently:
"I find that if you back off the throttle a little & just let the car cruise at a low throttle setting for the first hundred yards or so, it will calm down & disappear."
http://www.disco3.co.uk/forum/topic112.html
Pretty normal but not consistant as to when it happens. When it gets hot it can really get noisey.  “There are only three sports: bullfighting, motor racing, and mountaineering; all the rest are merely gamesâ€
Ernest Hemmingway
D4 3.0 Active Diff, Adaptive Lights, High Beam Assist, Surround Cameras, Privacy Glass.
D3 2.7:Adaptive Headlights,Electronic Rear Diff,ARB Bar,Blaupunkt Speakers,JVC Powered Subwoofer,Removable Snorkel,Mitch Hitch,Pioneer After Market Head Unit,Steering Wheel Control Adaptor,Remote Adjustable Supension Rod System, Taxside Dual Battery System.
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| 11th Oct 2009 7:58 am |
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Extreamjim
Member Since: 09 Oct 2009
Location: Perth
Posts: 21
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thanks for the link, sounds like it is what was being talked about.
Cheers,
Jim
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| 11th Oct 2009 9:47 am |
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Extreamjim
Member Since: 09 Oct 2009
Location: Perth
Posts: 21
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Last week I had the Disco looked at by LR and they have identified the issue being a dying alternator, the transmission noise I was referring to, was in fact the Electric Fan kicking into ultra drive as the Disco thinks there is a problem with the car and will automatically put the fan on its fastest speed.
Got the quote for the new Alternator $1,050.00 + shipping + fitting, thank god for the extended warranty!!!!
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| 26th Oct 2009 1:53 am |
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