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judder when towing ?
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DiscoDunc
 


Member Since: 08 May 2006
Location: Bristol
Posts: 16390

England 2010 Discovery 4 3.0 SDV6 HSE Auto Aintree GreenDiscovery 4
judder when towing ?

Cars been booked into dealers for an MOT, which it passed, after requiring a new horn Thumbs Up

Whilst it was in I asked them to look into a judder i have.

This only occurs when towing, and only when I tow the caravan (2000Kgs 'ish). Its Ok with the boat or little trailer.

It only seems to happen when the car sets off and for the first few miles. As i accelerate steadily from a start, and normally when up hill the car judders as if going over small rumble stripes (if I accelerate hard it seems OK). After its been running for a while it then seems OK.

the dealer has hooked up a heavy trailer and can reproduce the fault but cant identify whats causing it.

The fact they have actually reproduced it is great, so a big Thumbs Up to MJ Fews.

However, they want to first eleminate the tyres as they have had occasions when new or worn out tyres have caused strange things to happen. They dont think its a diff as the diff sounds fine and there are no error codes whatsoever being reported for anything. They are just trying to get a demo car they can swap the tyres over with.

Has anyone had similar symptoms and what was the solution to rectify.

Thanks
 Duncan
-----------------------------------------------------
If I'd known I was going to be so thirsty this morning I'd have drunk more beer last night.
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Post #4786099th Jun 2009 2:37 pm
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Bodsy
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Member Since: 06 Nov 2006
Location: In the Clubhouse
Posts: 21361

United Kingdom 2007 Discovery 3 TDV6 HSE Auto Java BlackDiscovery 3

Could it be the old double flush autobox fluid.....?
 Bodsys Brake Bible

D4/D3 Remote FBH heat kits
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Post #4786119th Jun 2009 2:42 pm
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DiscoDunc
 


Member Since: 08 May 2006
Location: Bristol
Posts: 16390

England 2010 Discovery 4 3.0 SDV6 HSE Auto Aintree GreenDiscovery 4

could be...

would it not happen under normal conditions, or is it only experienced when under load ?
 Duncan
-----------------------------------------------------
If I'd known I was going to be so thirsty this morning I'd have drunk more beer last night.
FFRR Autobiography 4.4 SDV8 MY17
D4 HSE MY13 SOLD
FFRR 3.6 Vogue TDV8 SOLD
D4 HSE MY10 SOLD
D4 SE TECH MY15 SOLD
D4 XS MY12 SOLD
D4 HSE MY10 SOLD
D3 HSE MY06 - Re-Cycled Worldwide 
 
Post #4786149th Jun 2009 2:44 pm
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Bodsy
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Member Since: 06 Nov 2006
Location: In the Clubhouse
Posts: 21361

United Kingdom 2007 Discovery 3 TDV6 HSE Auto Java BlackDiscovery 3

could just be the xtra strain making it more susceptable to the judder?
At high speeds it wouldn't get the opportunity to feel the judder, but when working at lower pressure/speed, it would be more noticable?

Could be other stuff, but it sounds similar to the general high mileage judder character had Thumbs Up
 Bodsys Brake Bible

D4/D3 Remote FBH heat kits
BAS Remaps/ EGR Blank
Transmission Flush
Software updates/enabling


Clock/ SNOTM /3Flash / 4x4Info /BT Update /Service Reset/Error Codes / Gearbox Reset
See It Here 
 
Post #4786179th Jun 2009 2:47 pm
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LeighW
D3 Decade 


Member Since: 31 Jan 2006
Location: Brisbane, AUS
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Australia 2006 Discovery 3 TDV6 S Auto Bonatti GreyDiscovery 3

DiscoDunc, years ago I had a Japanese 4x4 that had nylon plied tyres. Every night it was garaged on a very smooth hard flat surface and the next morning it always took a few kilometres before the tyres rounded out. They had flat spots until they warmed up.

Have you ruled out the tyres on the trailer having temporary flat spots?
 LeighW

The old girl is on her third engine...
* first ran a bearing (design failure in original engine)
* second had a failure of the water outlet on top of the engine (pls check yours) 
 
Post #4786189th Jun 2009 2:48 pm
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DiscoDunc
 


Member Since: 08 May 2006
Location: Bristol
Posts: 16390

England 2010 Discovery 4 3.0 SDV6 HSE Auto Aintree GreenDiscovery 4

Oh, they also unstuck my towbar and provided me with a new lock mecanism all under warranty Thumbs Up
 Duncan
-----------------------------------------------------
If I'd known I was going to be so thirsty this morning I'd have drunk more beer last night.
FFRR Autobiography 4.4 SDV8 MY17
D4 HSE MY13 SOLD
FFRR 3.6 Vogue TDV8 SOLD
D4 HSE MY10 SOLD
D4 SE TECH MY15 SOLD
D4 XS MY12 SOLD
D4 HSE MY10 SOLD
D3 HSE MY06 - Re-Cycled Worldwide 
 
Post #4786199th Jun 2009 2:49 pm
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DiscoDunc
 


Member Since: 08 May 2006
Location: Bristol
Posts: 16390

England 2010 Discovery 4 3.0 SDV6 HSE Auto Aintree GreenDiscovery 4

Quote:
Have you ruled out the tyres on the trailer having temporary flat spots?


I hadnt thought of that... but it also does it on the Dealers trailer, so most likely something else, but thanks Thumbs Up
 Duncan
-----------------------------------------------------
If I'd known I was going to be so thirsty this morning I'd have drunk more beer last night.
FFRR Autobiography 4.4 SDV8 MY17
D4 HSE MY13 SOLD
FFRR 3.6 Vogue TDV8 SOLD
D4 HSE MY10 SOLD
D4 SE TECH MY15 SOLD
D4 XS MY12 SOLD
D4 HSE MY10 SOLD
D3 HSE MY06 - Re-Cycled Worldwide 
 
Post #4786219th Jun 2009 2:50 pm
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DiscoDunc
 


Member Since: 08 May 2006
Location: Bristol
Posts: 16390

England 2010 Discovery 4 3.0 SDV6 HSE Auto Aintree GreenDiscovery 4

just been looking at all the other "judder" threads and looks like its pointing towards the gearbox flush. I am assuming the problem is coaused by crap in the torque converter and the flush gets rid of it Question
 Duncan
-----------------------------------------------------
If I'd known I was going to be so thirsty this morning I'd have drunk more beer last night.
FFRR Autobiography 4.4 SDV8 MY17
D4 HSE MY13 SOLD
FFRR 3.6 Vogue TDV8 SOLD
D4 HSE MY10 SOLD
D4 SE TECH MY15 SOLD
D4 XS MY12 SOLD
D4 HSE MY10 SOLD
D3 HSE MY06 - Re-Cycled Worldwide 
 
Post #4786299th Jun 2009 3:11 pm
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Bodsy
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Member Since: 06 Nov 2006
Location: In the Clubhouse
Posts: 21361

United Kingdom 2007 Discovery 3 TDV6 HSE Auto Java BlackDiscovery 3

Yup, that seems to be the issue. Not quite the sealed for life units they thought eh?
 Bodsys Brake Bible

D4/D3 Remote FBH heat kits
BAS Remaps/ EGR Blank
Transmission Flush
Software updates/enabling


Clock/ SNOTM /3Flash / 4x4Info /BT Update /Service Reset/Error Codes / Gearbox Reset
See It Here 
 
Post #4786339th Jun 2009 3:12 pm
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mick
 


Member Since: 21 Jan 2007
Location: Yorkshire
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England 2010 Discovery 4 3.0 TDV6 GS Auto Santorini BlackDiscovery 4

I have the exact same trouble only when towing as you say like going over rumble strips let me know what they do Thumbs Up
  
Post #4787729th Jun 2009 6:04 pm
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DiscoDunc
 


Member Since: 08 May 2006
Location: Bristol
Posts: 16390

England 2010 Discovery 4 3.0 SDV6 HSE Auto Aintree GreenDiscovery 4

just got back from Dealer. They changed the tyres and could still reproduce it.

They are suggesting a Double Gearbox Flush Thumbs Up

its booked in for the 18th June Thumbs Up

hopefully that will fix it
 Duncan
-----------------------------------------------------
If I'd known I was going to be so thirsty this morning I'd have drunk more beer last night.
FFRR Autobiography 4.4 SDV8 MY17
D4 HSE MY13 SOLD
FFRR 3.6 Vogue TDV8 SOLD
D4 HSE MY10 SOLD
D4 SE TECH MY15 SOLD
D4 XS MY12 SOLD
D4 HSE MY10 SOLD
D3 HSE MY06 - Re-Cycled Worldwide 
 
Post #4788029th Jun 2009 6:35 pm
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ronp
 


Member Since: 29 Nov 2006
Location: North Yorkshire
Posts: 15214

United Kingdom 2014 Discovery 4 3.0 SDV6 HSE Auto Corris GreyDiscovery 4

A double flush is pretty expensive.
I was quoted around £380 for that.
Because of the huge cost involved I just had a gearbox oil change.
The thought was that if it didn't cure it, I'd have it done again.
Therefore a double flush, but in installments.
However the oil change cured my problems.
Cost of that was around the £200 mark.
 I was a normal heterosexual chap, but in these new woke awakenings I now identify as a Wardrobe.  
Post #4788199th Jun 2009 6:48 pm
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10forcash
 


Member Since: 09 Jun 2005
Location: Ubique
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United Kingdom 2007 Discovery 3 TDV6 HSE Manual Zermatt SilverDiscovery 3

Same as Ron says, the extra load (and therefore raised transmission temp) is causing the oil to lose viscosity and therefore not provide drive until the pressure is built up again by the TC.
  
Post #4788599th Jun 2009 7:11 pm
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mick
 


Member Since: 21 Jan 2007
Location: Yorkshire
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England 2010 Discovery 4 3.0 TDV6 GS Auto Santorini BlackDiscovery 4

Will it cause any damage if not rectified or is it something we can live with Wink
  
Post #4788689th Jun 2009 7:19 pm
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DiscoDunc
 


Member Since: 08 May 2006
Location: Bristol
Posts: 16390

England 2010 Discovery 4 3.0 SDV6 HSE Auto Aintree GreenDiscovery 4

Quote:
A double flush is pretty expensive.
I was quoted around £380 for that.


i still have 28 days of Warranty left Thumbs Up
 Duncan
-----------------------------------------------------
If I'd known I was going to be so thirsty this morning I'd have drunk more beer last night.
FFRR Autobiography 4.4 SDV8 MY17
D4 HSE MY13 SOLD
FFRR 3.6 Vogue TDV8 SOLD
D4 HSE MY10 SOLD
D4 SE TECH MY15 SOLD
D4 XS MY12 SOLD
D4 HSE MY10 SOLD
D3 HSE MY06 - Re-Cycled Worldwide 
 
Post #4788719th Jun 2009 7:31 pm
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