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Loss of Power on Kickdown
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Landylad
 


Member Since: 23 Dec 2008
Location: Aberdeenshire
Posts: 366

Scotland 2012 Discovery 4 3.0 SDV6 GS Auto Zermatt SilverDiscovery 4
Loss of Power on Kickdown

Hey guys.
I've got a 2012 D4 SDV6. Just recently (well, maybe it's been like this for a while but the way I drove it which is not my normal style), it lost power for a second on planting throttle to overtake and I had a massive plume of smoke - assumed this to be unburnt diesel. Has happened twice - around 15mph to pull away from a junction and maybe 40mph when overtaking.
Any ideas? Gearbox or fuel system related?
 If in doot, flat oot!!  
Post #23579246th Jan 2024 9:30 pm
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Farmer Chalk
 


Member Since: 06 Mar 2013
Location: Independent Republic of Kentishshire.
Posts: 4196

England 2008 Discovery 3 TDV6 HSE Auto Tangiers OrangeDiscovery 3

EGR valve sticking? You need to see if you have any fault codes.. P045 from memory…
  
Post #23579326th Jan 2024 10:24 pm
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Carl and Petra
 


Member Since: 13 Feb 2015
Location: Hautes Pyrenees
Posts: 219

France 2015 Discovery 4 3.0 TDV6 SE Auto Sumatra BlackDiscovery 4

I had a diesel Jeep do this under acceleration. The turbo hoses were collapsing. Replaced hoses and all was good.

I do not know about whether this could be possible with your engine ?
  
Post #23579346th Jan 2024 10:51 pm
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waterbuoy
 


Member Since: 26 Oct 2013
Location: Argyll
Posts: 2924

United Kingdom 2009 Discovery 3 TDV6 SE Auto Stornoway GreyDiscovery 3

Is the smoke black or white?

White suggests fuel related, black is likely to be a split or collapsed hose.

Standing by to be corrected by others!

(our 2012 D4 has always had a bit of a lag when planting the pedal, but that is a known issue)
 Currently 2009 Disco 3 SE, 2013 MY D4 HSE and 2016 D4 SE
Previously:
TD5 Defender 110 CSW (230k miles)
300TDi Disco 1 (289k)
4 RR Classics (300-350k each, 2 manual, 2 auto)
110 V8 CSW (220k)
S3 109 hi cap pickup (ex RN)
S2A 88 Safari SW with lpg conversion (bloody lethal) 
 
Post #23579376th Jan 2024 11:07 pm
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Landylad
 


Member Since: 23 Dec 2008
Location: Aberdeenshire
Posts: 366

Scotland 2012 Discovery 4 3.0 SDV6 GS Auto Zermatt SilverDiscovery 4

It's certainly not blue thankfully!
Yeah, more a greyish colour towards white than black.
 If in doot, flat oot!!  
Post #23579557th Jan 2024 11:34 am
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popsdosh
 


Member Since: 09 Nov 2009
Location: cambs
Posts: 442

United Kingdom 2016 Discovery 4 3.0 SDV6 Graphite LE Auto Corris GreyDiscovery 4

EGR or turbo . check all hoses under acceleration as it may just be a damaged hose
  
Post #23579707th Jan 2024 1:50 pm
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Landylad
 


Member Since: 23 Dec 2008
Location: Aberdeenshire
Posts: 366

Scotland 2012 Discovery 4 3.0 SDV6 GS Auto Zermatt SilverDiscovery 4

If it were turbo issues, would I not expect to see a loss of power or increase in lag, all the time?
She's running fine other than when I floored it a couple of times. No codes on show, albeit I don't have a reader.
 If in doot, flat oot!!  
Post #23580247th Jan 2024 5:29 pm
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