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Warped auto box?
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chrisb25
 


Member Since: 11 Nov 2013
Location: Saffron Walden, Essex
Posts: 45

United Kingdom 2007 Discovery 3 TDV6 HSE Auto Bonatti GreyDiscovery 3
Warped auto box?

This might seem really random but giving the Disco a thrash round some country roads this morning in sport mode I noticed that third gear theres a nasty juddering, it felt like a warped flywheel.

From what I've read the torque limiter could be the culprit, any ideas as to what this could be or how to fix/remedy it?

It happens across the rev range but only over about 1500 right up till it changes at like 3800/4000 or something like that.
  
Post #118809515th Nov 2013 1:52 pm
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Durham4416
 


Member Since: 26 Oct 2013
Location: United kingdom
Posts: 273

2005 Discovery 3 TDV6 S Auto Zambezi SilverDiscovery 3

I had an issue with mine where the revs fluctuate when cruising, I think this is the early stages before you get the judder, there are loads of posts about it, it's the torque converter but nine times out of ten a megaflush of the gearbox oil will solve it, try some dr tranny, i'v just put some in mine and the fluctuating revs have gone although I am still going to have a megaflush done in the near future though, lots if people's judder has vanished after using dr tranny, worth a try for £12 and 10 minutes work Smile
  
Post #118813315th Nov 2013 2:55 pm
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chrisb25
 


Member Since: 11 Nov 2013
Location: Saffron Walden, Essex
Posts: 45

United Kingdom 2007 Discovery 3 TDV6 HSE Auto Bonatti GreyDiscovery 3

Excuse my ignorance but where can I get DR Tranny from, suppose Halfrauds don't sell this sort of stuff?

The disco is going in on Monday anyways for this error code they didn't clear, see if they can do an oilchange of the autobox aswell, don't think it's been done, which could be half the reason...
  
Post #118821215th Nov 2013 5:24 pm
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Durham4416
 


Member Since: 26 Oct 2013
Location: United kingdom
Posts: 273

2005 Discovery 3 TDV6 S Auto Zambezi SilverDiscovery 3

You need a megaflush ideally as you dint get enough of the old stuff out with a normal change then the old oil contaminates the new oil and your back to square one eventually, you can get dr tranny from advanced factors (site sponsor)
  
Post #118821615th Nov 2013 5:27 pm
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Farsco
 


Member Since: 07 Sep 2013
Location: Douglas
Posts: 352

Isle Of Man 2007 Discovery 3 TDV6 SE Auto Java BlackDiscovery 3

If going to the stealers, an auto oil drain and change will only get about 4 litres out which is a bit under half. You need to go to someone who has a flushing system to remove all the old and put in new. The name Geoff springs to mind Very HappyVery Happy

I read some interesting stuff that said adding a bit of new auto oil to old is worse than leaving it alone!!! Others far more knowledgable will be along shortly no doubt.
  
Post #118822215th Nov 2013 5:31 pm
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Farsco
 


Member Since: 07 Sep 2013
Location: Douglas
Posts: 352

Isle Of Man 2007 Discovery 3 TDV6 SE Auto Java BlackDiscovery 3

Durham4416 wrote:
You need a megaflush ideally as you dint get enough of the old stuff out with a normal change then the old oil contaminates the new oil and your back to square one eventually, you can get dr tranny from advanced factors (site sponsor)


Beat me to it Very Happy
  
Post #118822415th Nov 2013 5:32 pm
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B16 KJR
 


Member Since: 10 Jul 2006
Location: Rosyth, Fife
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Quote:
I read some interesting stuff that said adding a bit of new auto oil to old is worse than leaving it alone!!! Others far more knowledgable will be along shortly no doubt.


Where did you read that ?
  
Post #118826515th Nov 2013 6:49 pm
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chrisb25
 


Member Since: 11 Nov 2013
Location: Saffron Walden, Essex
Posts: 45

United Kingdom 2007 Discovery 3 TDV6 HSE Auto Bonatti GreyDiscovery 3

Well I'm hoping to bring this thread up when I explain what I want doing and how, hoping my request will actually be carried out, chances are slim though I think Sad
  
Post #118826915th Nov 2013 7:00 pm
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Farsco
 


Member Since: 07 Sep 2013
Location: Douglas
Posts: 352

Isle Of Man 2007 Discovery 3 TDV6 SE Auto Java BlackDiscovery 3

B16 KJR wrote:
Quote:
I read some interesting stuff that said adding a bit of new auto oil to old is worse than leaving it alone!!! Others far more knowledgable will be along shortly no doubt.


Where did you read that ?


Can't remember now but it was something to do with auto gearbox association saying issues due to stirring up crap in the box I think. Local specialist said much the same and had seen lots of failures shortly after part changes (not LR specifically)

I guess if you change 4 litres then do it again shortly after you are more likely to get rid of contaminants but not all.......or just flush SmileSmileSmile
  
Post #118827215th Nov 2013 7:06 pm
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B16 KJR
 


Member Since: 10 Jul 2006
Location: Rosyth, Fife
Posts: 3005

Scotland 

That's a new one on me Shocked
  
Post #118831715th Nov 2013 8:53 pm
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Disco_Mikey
 


Member Since: 29 May 2007
Location: Dundee, Scotland
Posts: 20836

Scotland 2005 Discovery 3 TDV6 HSE Auto Cairns BlueDiscovery 3

The above was true was the ZF 4HP gearbox Thumbs Up

Not so true with the ZF 6HP box.
 My D3 Build Thread

TDV8 Retrofit Build Thread 
 
Post #118832315th Nov 2013 9:00 pm
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B16 KJR
 


Member Since: 10 Jul 2006
Location: Rosyth, Fife
Posts: 3005

Scotland 

Glad to hear that Thumbs Up
  
Post #118832515th Nov 2013 9:04 pm
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