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D4 SDV6 engine "shudder" on cold start-up
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mickyd4
 


Member Since: 26 Jun 2010
Location: North
Posts: 786

United Kingdom 

My previous D4 did this, my current one also does it Exclamation
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2020 - Discovery 5 3.0 SD6 Landmark - SOLD
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Post #105702517th Feb 2013 4:22 pm
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Robbie
 


Member Since: 05 Feb 2006
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United Kingdom 2013 Discovery 4 3.0 SDV6 HSE Auto Baltic BlueDiscovery 4

No shudder for me yet, but only been as low as -2 deg C on start. My neighbour's D4 does it when its not been charged for a while, but hardly conclusive.
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Post #105703017th Feb 2013 4:26 pm
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outofyorkshire
 


Member Since: 27 Apr 2009
Location: Emigrated to Notts
Posts: 1021

United Kingdom 2010 Discovery 4 3.0 SDV6 XS Auto Stornoway GreyDiscovery 4

PSC wrote:
If you press the start button without the brake pressed, wait 8 seconds and then press the brake and the start button is the stumble as bad (trying to check if one can emulate the behaviour pre start button) ?



I tried this yesterday ..pressed the start without brake pedal ..waited for glow plug light to go out ...then started it up a couple of seconds later.

Result Thumbs Up no shudder

Now obviously this is not an extensive test (once Laughing ) but it certainly seemed to make a difference.
Will continue with this & see how I get on. It certainly seems to point at glow plug warming times

Come on you lot ....Give it a try & post results Thumbs Up
 Cheers Ian
___________________________________________
MY13 FL2 HSE lux - just gone
MY10 D4 XS
MY07 D3 SE
Massey Ferguson 400 FIS AGTV - Arctic Cat by any other name...
Citroen C3 Picasso for SWMBO so we can remember what fuel economy is!!
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Post #105757818th Feb 2013 2:26 pm
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adam
 


Member Since: 20 Sep 2005
Location: Home and Happy
Posts: 6917

United Kingdom 

I often start the car when v. cold (no brake pedal), let all warning lights go out (often use this time to check the oil level on the dash), turn it off, turn it on again (no brake pedal), let all warning lights go out, press brake pedal and start the engine
Shudder gone or significantly removed
  
Post #105758518th Feb 2013 2:42 pm
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MartinR
 


Member Since: 27 Jan 2008
Location: Oxon
Posts: 708

United Kingdom 2012 Discovery 4 3.0 SDV6 XS Auto Galway GreenDiscovery 4

spliff wrote:
am sure its not FBH cutting in - I have "poverty spec" GS !! Sad


I thought pretty much all modern diesels have an FBH, to avoid hypothermic occupants - it's the timed/remote control for it that's the option isn't it?

That aside, mine also feels 'lumpy' from very cold - will have to try the same trick too!
  
Post #105762118th Feb 2013 3:44 pm
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Duffs
 


Member Since: 31 Mar 2009
Location: Newcastle Upon Tyne.
Posts: 196

England 2013 Discovery 4 3.0 SDV6 GS Auto Orkney GreyDiscovery 4

Freezing temp start today- tried the foot off fix- started no shudder at all.
 D4 3.0 SDV6 GS 13
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D3 2.7 TDV6 GS 07-09 
 
Post #105845519th Feb 2013 4:32 pm
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PSC
 


Member Since: 01 May 2006
Location: Johannesburg
Posts: 255

South Africa 2010 Discovery 4 5.0 V8 HSE Auto Fuji WhiteDiscovery 4

Thumbs Up

Good point by Ian on the glowplug light exstinguishing
  
Post #105857019th Feb 2013 7:29 pm
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spliff
 


Member Since: 30 Jan 2013
Location: millington green
Posts: 20

United Kingdom 2011 Discovery 4 3.0 SDV6 GS Auto Zermatt SilverDiscovery 4

MartinR wrote:
spliff wrote:
am sure its not FBH cutting in - I have "poverty spec" GS !! Sad


I thought pretty much all modern diesels have an FBH, to avoid hypothermic occupants - it's the timed/remote control for it that's the option isn't it?

That aside, mine also feels 'lumpy' from very cold - will have to try the same trick too!


Apologies - I didn't think FBH was fitted to GS. Heard it fire up and what looked like steam coming from under the car. At least I hope it was that !!!!!!
  
Post #105907120th Feb 2013 4:58 pm
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outofyorkshire
 


Member Since: 27 Apr 2009
Location: Emigrated to Notts
Posts: 1021

United Kingdom 2010 Discovery 4 3.0 SDV6 XS Auto Stornoway GreyDiscovery 4

Now up to 3 morning starts using the 'new' procedure ....so far so good Thumbs Up

Will be interesting to see a -4/-5 sub zero start as it has not been that cold down here yet.
Maybe this weekend Whistle
 Cheers Ian
___________________________________________
MY13 FL2 HSE lux - just gone
MY10 D4 XS
MY07 D3 SE
Massey Ferguson 400 FIS AGTV - Arctic Cat by any other name...
Citroen C3 Picasso for SWMBO so we can remember what fuel economy is!!
Member of the Narpy torch club 
 
Post #105919420th Feb 2013 6:59 pm
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MartinR
 


Member Since: 27 Jan 2008
Location: Oxon
Posts: 708

United Kingdom 2012 Discovery 4 3.0 SDV6 XS Auto Galway GreenDiscovery 4

Cue another "help my disco is smoking" thread Laughing
  
Post #105920020th Feb 2013 7:08 pm
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ronniehardware
 


Member Since: 29 Apr 2006
Location: western isles
Posts: 37

Scotland 2013 Discovery 4 3.0 TDV6 HSE Auto Marmaris TealDiscovery 4
Shudder

Yup. My new D4 shudders for brief second on start up. My 2010 XS didn't and that had an FBH.
  
Post #105983321st Feb 2013 7:10 pm
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spliff
 


Member Since: 30 Jan 2013
Location: millington green
Posts: 20

United Kingdom 2011 Discovery 4 3.0 SDV6 GS Auto Zermatt SilverDiscovery 4

I think this shuddering business must be a feature of Landrovers in general.
My 62 plate FL2 loan car does it worse than my disco !!
  
Post #105985121st Feb 2013 7:22 pm
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character
 


Member Since: 31 Dec 2007
Location: wiltshire
Posts: 5779

United Kingdom 2005 Discovery 3 TDV6 S Auto Alaska WhiteDiscovery 3

does it with MY 09/10 Merc ML's....collected quite a few over these cold months, often when the car has been parked on a slight driveway slope for a few days with low fuel levels...rough as old boots then around 30 seconds later, fine.

worst out of the merc range...."E-class"...leave um parked up for a few days with little fuel in em, almost stuck to the ground...
  
Post #105986221st Feb 2013 7:29 pm
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spliff
 


Member Since: 30 Jan 2013
Location: millington green
Posts: 20

United Kingdom 2011 Discovery 4 3.0 SDV6 GS Auto Zermatt SilverDiscovery 4

Car back from second visit to dealers re:- "shudder".

They gave it a right good seeing to i.e. diagnostics - no errors, smoke test, egr checks, glow plugs and glow plug temperatures, FBH check, compared with another vehicle of similar vintage etc.
Diagnosis - NO apparent problems !

Guess it must be a "feature" and so I will stop worrying about it and get on and enjoy the car.
  
Post #106104023rd Feb 2013 3:58 pm
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def90v8
 


Member Since: 22 Jan 2011
Location: kent
Posts: 55

United Kingdom 

Hi I work at Lr main dealer in Kent
Probably worked on / driven hundreds of d4's
They all do the shudder / miss fire just after start up when it's cold
but as said above if started with foot off brake till glow goes out all start no shudder.
  
Post #10654873rd Mar 2013 7:57 am
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