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gearbox (again)
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xcentric
 


Member Since: 01 Apr 2015
Location: Shropshire, UK
Posts: 1081

2012 Discovery 4 3.0 SDV6 HSE Auto Baltic BlueDiscovery 4
gearbox (again)

Had the usual hesitations from the gearbox in the past, which have been checked by dealer and all ok, so driven round them.

However, on recent trip, it seems to have got lot worse.

(i) pulling a trailer - getting onto roundabouts was almost suicidal - the hesitation and pause was of the 'this seems like ages and I wish something would happen..... whoosh' type, and trying not to overcompensate so that when I did go I didn't leave the contents of the trailer behind were a challenge

(ii) low ratio, up steep hills: there were times when I'd sit, foot pressed to the floor, on a step rocky incline, and the car would just sit there, not responding, for a few seconds at least. Of course, it felt longer, but was ages. It didn't matter if I was gentle, vigorous, used some or all of the pedal travel - it was, shall we say, overly reluctant.....

Am booking into the dealers to have them look at it, but am not convinced they will either be able to replicate it - it is somewhat unpredictable - or really investigate it properly. What should I ask them to consider? Should i take in a fully loaded trailer to demonstrate?! It's under approved used warranty - for another few months.....

n.b. they tell me the gearbox software is up to date (well, it was a year ago). Suggestions welcomed.
  
Post #169801330th Aug 2016 9:47 am
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Bodsy
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Member Since: 06 Nov 2006
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United Kingdom 2007 Discovery 3 TDV6 HSE Auto Java BlackDiscovery 3

Sounds like egrs rather than gearbox hesitation.
If they are slow/fail to close, then it will cause exactly the symptoms you describe.
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Post #169801430th Aug 2016 9:59 am
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xcentric
 


Member Since: 01 Apr 2015
Location: Shropshire, UK
Posts: 1081

2012 Discovery 4 3.0 SDV6 HSE Auto Baltic BlueDiscovery 4

ok, so why would this give the hesitation? thought it was only for emissions control? and how can I test out whether they are closing or not? Have an IIDtool if it helps (no error codes there tho)
  
Post #169830730th Aug 2016 9:28 pm
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galwaygreen
 


Member Since: 30 Oct 2011
Location: plymouth
Posts: 6525

United Kingdom 2016 Discovery 4 3.0 TDV6 Graphite LE Auto Loire BlueDiscovery 4

make sure your boot aint touch the brake...even the slightest touch will tell the computer to brake
  
Post #169831230th Aug 2016 9:34 pm
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xcentric
 


Member Since: 01 Apr 2015
Location: Shropshire, UK
Posts: 1081

2012 Discovery 4 3.0 SDV6 HSE Auto Baltic BlueDiscovery 4

yep know all about the brake switch..... it's not me touching the brake, I can assure you Confused
  
Post #169831530th Aug 2016 9:38 pm
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CDS
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Member Since: 12 Oct 2009
Location: All over the UK!
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United Kingdom 2008 Discovery 3 TDV6 HSE Auto Tangiers OrangeDiscovery 3

Sounds like mine, not fault codes, but blanked EGR's anyway, no improvement.
Judder then kicks in 15,000miles later (learnt to live with hesitation), checked by LR, no fault found, checked by Disco Mikey, new TC fitted, all problems solved Thumbs Up

A friend has a D4 with used approved LR warranty with judder. LR can't diagnose the fault and are talking about exchanging the vehicle....their idea not his Shocked

It seems to me that LR don't actually have a bloody clue how to diagnose a knackered TC these days!!!
 
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Last edited by CDS on 31st Aug 2016 10:16 am. Edited 1 time in total 
Post #169833830th Aug 2016 10:24 pm
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xcentric
 


Member Since: 01 Apr 2015
Location: Shropshire, UK
Posts: 1081

2012 Discovery 4 3.0 SDV6 HSE Auto Baltic BlueDiscovery 4

hmm blanking ego's on a D4 causes problems I think.

Are there any hints on how to diagnose faulty torque converter? It's taken to rolling back on hills too, so maybe that's TC related?
  
Post #169835230th Aug 2016 11:00 pm
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dgardel
 


Member Since: 03 Nov 2009
Location: Greater Venice
Posts: 2025

Italy 2014 Discovery 4 3.0 SDV6 XXV LE Auto Santorini BlackDiscovery 4

CDS wrote:
Sounds like mine, not fault codes, but blanked EGR's anyway, no improvement.
Judder then kicks in 15,000miles later (learnt to love with hesitation), checked by LR, no fuzzily found, checked by Disco Mikey, new TC fitted, all problems solved Thumbs Up

A friend has a D4 with used approved LR warranty with judder. LR can't diagnose the fault and are talking about exchanging the vehicle....their idea not his Shocked

It seems to me that LR don't actually have a bloody clue how to diagnose a knackered TC these days!!!


What do you mean with TC, Traction Control? or what?
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IID Pro MV License

 
 
Post #169840231st Aug 2016 7:19 am
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xcentric
 


Member Since: 01 Apr 2015
Location: Shropshire, UK
Posts: 1081

2012 Discovery 4 3.0 SDV6 HSE Auto Baltic BlueDiscovery 4

torque converter
  
Post #169840631st Aug 2016 7:28 am
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RBP
 


Member Since: 29 Aug 2012
Location: N Yorks
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England 2013 Discovery 4 3.0 SDV6 HSE Lux Auto Fuji WhiteDiscovery 4

Thought it was Top Cat Razz
   
Post #169841731st Aug 2016 8:38 am
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CDS
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Member Since: 12 Oct 2009
Location: All over the UK!
Posts: 3324

United Kingdom 2008 Discovery 3 TDV6 HSE Auto Tangiers OrangeDiscovery 3

xcentric wrote:
ok, so why would this give the hesitation? thought it was only for emissions control? and how can I test out whether they are closing or not? Have an IIDtool if it helps (no error codes there tho)


If not EGR fault codes then they are working fine. You may choose to double check by looking at the live values on the IID, I'd be shocked if they aren't moving as you have no DTC's Thumbs Up
 
Discovery 3/4 & RRS keys cut and programmed at your home or work
Apple CarPlay/ Android Auto retro fit - see it here
BAS Remaps/ EGR Blanking
Software updates/ enabling
Mobile Servicing & Repairs
 
 
Post #169845231st Aug 2016 10:17 am
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MarkOne
 


Member Since: 23 Jul 2011
Location: County Antrim
Posts: 3345

Scotland 2014 Discovery 4 3.0 SDV6 HSE Lux Auto Corris GreyDiscovery 4

CDS wrote:
Sounds like mine, not fault codes, but blanked EGR's anyway, no improvement.
Judder then kicks in 15,000miles later (learnt to live with hesitation), checked by LR, no fault found, checked by Disco Mikey, new TC fitted, all problems solved Thumbs Up

A friend has a D4 with used approved LR warranty with judder. LR can't diagnose the fault and are talking about exchanging the vehicle....their idea not his Shocked

It seems to me that LR don't actually have a bloody clue how to diagnose a knackered TC these days!!!


The dealer tried to tell me I needed a gearbox 20k ago, when I told them the torque converter was slipping and it's not the gearbox they asked me what made me think it was that and not the box. I asked them the same and they said we find at those miles (100k at the time) that it's always the gearbox Rolling Eyes

Needless to say the box is fine.
  
Post #169845631st Aug 2016 10:34 am
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dgardel
 


Member Since: 03 Nov 2009
Location: Greater Venice
Posts: 2025

Italy 2014 Discovery 4 3.0 SDV6 XXV LE Auto Santorini BlackDiscovery 4

xcentric wrote:
torque converter


Embarassed Thumbs Up
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IID Pro MV License

 
 
Post #169883231st Aug 2016 11:46 pm
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