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Restricted performance uphill
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CamRSA
 


Member Since: 18 Jun 2020
Location: Plymouth
Posts: 10

United Kingdom 2011 Discovery 4 3.0 TDV6 HSE Auto Unknown ColourDiscovery 4
Restricted performance uphill

I’ve literally been reading nonstop since this started. My 2011 D4 started doing this about 3weeks ago, it only happens accelerating uphill at about 50mph on the flat I can cruise at 70+ no issues whatsoever.

Cleaned the MAF and that’s not worked. Are there any other basic checks anyone would recommend before taking it to the garage?

If anyone can recommend an independent that’s good with discos in Plymouth or near let me know.

Any help would be great.
  
Post #217925410th Oct 2020 3:32 pm
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ianm27
 


Member Since: 02 Jun 2016
Location: Hertfordshire
Posts: 2154

England 2012 Discovery 4 3.0 SDV6 GS Auto Orkney GreyDiscovery 4

Can't help with recommendations near Plymouth.

I would suggest you need to get the codes read, either by an indy or a kind member near you with an IID Very Happy From what you are experiencing it could be a leaking inlet manifold but without the codes it's just guess work.
 Uncle Ray's spare wheel protector
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Post #217925610th Oct 2020 3:43 pm
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Moo
D3 Decade 


Member Since: 13 Aug 2010
Location: Wiltshire
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Ukraine 2005 Discovery 3 TDV6 S Manual Zambezi SilverDiscovery 3

Split manifold?
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Post #217927510th Oct 2020 4:55 pm
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Dannyson
 


Member Since: 14 Oct 2014
Location: Newquay, Cornwall
Posts: 820

England 

How long into the road trip were you? - a while ago now, my new 2016 D4 went into this mode when going uphill - basically because, I think, the engine wasn't 'warmed up enough'.

Just a thought..... If I go uphill now and the engine hasn't reached 'ambient temperature' - I back off the revs...
 2016MY Discovery HSE - Black
2009MY Toyota Land Cruiser (Lc4) - Black 
 
Post #217934110th Oct 2020 9:46 pm
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MikeBob
 


Member Since: 19 Sep 2016
Location: Pretoria
Posts: 105

South Africa 2010 Discovery 4 3.0 TDV6 SE Auto Ipanema SandDiscovery 4

Read the error codes first. On my D4 it was a rubber T piece that split near the vacuum pump so the crossover valve wasn’t operating correctly
  
Post #217935111th Oct 2020 4:26 am
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CamRSA
 


Member Since: 18 Jun 2020
Location: Plymouth
Posts: 10

United Kingdom 2011 Discovery 4 3.0 TDV6 HSE Auto Unknown ColourDiscovery 4

First time it happened I was a good 3hrs into a 3.5hr trip. On the return a week later it was exactly the same, both times going up hill.

Now it’s instant the moment I accelerate up any significant incline. I’ll get the codes read and get it booked in, I’ll update on here but it’s probably going to be similar to what many others have experienced.

Been driving TD5s my whole life until 3 months ago before making the jump, now I’m dealing with this! Fun times.
  
Post #217937811th Oct 2020 9:13 am
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CamRSA
 


Member Since: 18 Jun 2020
Location: Plymouth
Posts: 10

United Kingdom 2011 Discovery 4 3.0 TDV6 HSE Auto Unknown ColourDiscovery 4

So I got:

P010C mass or volume air flow B circuit low

P006A MAP Mass or volume air flow correlation

P010B mass or volume air flow B circuit range/performance

Cleared them, cleaned the MAP, cleaned the MAF for the second time. Took it for a spin, seemed fine then dropped into RP on the last hill before home.

Checked faults when home and just got P006A. There is a big old black sludge explosion on the n/s under the engine cover as well.

I’ve got a 130mi journey tonight/early tomorrow morning I literally cannot miss. Worst case if I drive what am I looking at possibility wise
  
Post #217939911th Oct 2020 10:24 am
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CamRSA
 


Member Since: 18 Jun 2020
Location: Plymouth
Posts: 10

United Kingdom 2011 Discovery 4 3.0 TDV6 HSE Auto Unknown ColourDiscovery 4

Phots
  
Post #217940311th Oct 2020 10:29 am
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DrRobH
 


Member Since: 10 Oct 2015
Location: Hampshire
Posts: 924

United Kingdom 

Take it to Mark Kelly in Tavistock
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Post #217941111th Oct 2020 10:58 am
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CamRSA
 


Member Since: 18 Jun 2020
Location: Plymouth
Posts: 10

United Kingdom 2011 Discovery 4 3.0 TDV6 HSE Auto Unknown ColourDiscovery 4

Ya I’ve got hold of him. He’s worked on my defender before just wasn’t sure how he was with discos. Thanks for the steer
  
Post #217941311th Oct 2020 11:03 am
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Hardware
 


Member Since: 28 Jun 2016
Location: Hiding under the M60
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United Kingdom 2011 Discovery 4 3.0 SDV6 XS Auto Sumatra BlackDiscovery 4

Throttle body joint?


https://disco4.com/forum/post2174094.html#2174094
 .


Dean
====================================

2011 D4 XS - OBD port protection, RLD spare wheel protector, All LED interiors lights, Timed Climate enabled, iiD tool paired.
2011 D4 Landmark - Stolen from same dealer before I paid for it
2011 D4 GS - Stolen whilst at dealer Sad ... All LED interiors lights, DRLs, Spare Wheel protector.
1996 300Tdi - Eaten by tin worms 
 
Post #217941511th Oct 2020 11:23 am
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CamRSA
 


Member Since: 18 Jun 2020
Location: Plymouth
Posts: 10

United Kingdom 2011 Discovery 4 3.0 TDV6 HSE Auto Unknown ColourDiscovery 4

https://ibb.co/0y7Wgb0
https://ibb.co/BNJVpTZ
  
Post #217945311th Oct 2020 3:16 pm
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CamRSA
 


Member Since: 18 Jun 2020
Location: Plymouth
Posts: 10

United Kingdom 2011 Discovery 4 3.0 TDV6 HSE Auto Unknown ColourDiscovery 4

Trying to post pictures. Those links work.
  
Post #217945411th Oct 2020 3:17 pm
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Hardware
 


Member Since: 28 Jun 2016
Location: Hiding under the M60
Posts: 12676

United Kingdom 2011 Discovery 4 3.0 SDV6 XS Auto Sumatra BlackDiscovery 4

here you go ...


  
Post #217945611th Oct 2020 3:26 pm
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CamRSA
 


Member Since: 18 Jun 2020
Location: Plymouth
Posts: 10

United Kingdom 2011 Discovery 4 3.0 TDV6 HSE Auto Unknown ColourDiscovery 4

Cheers man.

Just had a little dig and the n/s manifold is cracked. All down the top just under that pipe where all the oil is coming from.

Will get it booked in and replaced. Might do both at the same time if this is what i can expect from the other one. Any other jobs worth doing while I’m getting this fixed?
  
Post #217946711th Oct 2020 4:23 pm
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