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P1247 Low boost pressure - restricted performance - LR043939
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R AND R LAND ROVER SPECIALISTS
 


Member Since: 27 Jul 2015
Location: tockwith
Posts: 4

United Kingdom 

Checked the manifold tonight like you said, had a crack on cylinder 3!!!

new inlet manifold is required to fix this one


PROBLEM SOLVED!



CHEERS Bow down Bow down Bow down
  
Post #150776227th Jul 2015 9:34 pm
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Rrozzer
 


Member Since: 02 Feb 2015
Location: Hertfordshire
Posts: 19

England 2012 Discovery 4 3.0 SDV6 HSE Auto Baltic BlueDiscovery 4

Any idea please what the tsb reference is for the cracked manifold?
  
Post #16647478th Jun 2016 5:28 pm
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Disco_Mikey
 


Member Since: 29 May 2007
Location: Dundee, Scotland
Posts: 20032

Scotland 2005 Discovery 3 TDV6 HSE Auto Cairns BlueDiscovery 3

LTB00768, as per the other thread you posted in Whistle
 My D3 Build Thread

TDV8 Retrofit Build Thread 
 
Post #16647488th Jun 2016 5:30 pm
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Rrozzer
 


Member Since: 02 Feb 2015
Location: Hertfordshire
Posts: 19

England 2012 Discovery 4 3.0 SDV6 HSE Auto Baltic BlueDiscovery 4

Yep see that now, many thanks off to the dealer in the morning to see what they say.
  
Post #16647548th Jun 2016 5:35 pm
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bigjl
 


Member Since: 22 Aug 2014
Location: Essex
Posts: 59

United Kingdom 

TSB I was given was JTB 00422
  
Post #16647678th Jun 2016 6:10 pm
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dgardel
 


Member Since: 03 Nov 2009
Location: Greater Venice
Posts: 2024

Italy 2014 Discovery 4 3.0 SDV6 XXV LE Auto Santorini BlackDiscovery 4
Re: P1247 Low boost pressure - restricted performance - LR043939

llessur wrote:







They are 2! If I'm not wrong (items7 & item8 - 3 with item2 behind the engine)





for the RHD (Steering wheel on the wrong side Mr. Green )

Click image to enlarge


Click image to enlarge



https://www.amazon.co.uk/JAGUAR-VACUUM-VAL...B00OY8I39Y

http://www.ebay.co.uk/itm/NEW-GENUINE-PIER...2096519155
 Discovery 5 tdv6 HSE Corris Gray Outback Engineering Limited Edition

IID Pro MV License

 
 
Post #16648688th Jun 2016 9:38 pm
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newman4x4
 


Member Since: 31 Jul 2010
Location: 07100 BOULIEU
Posts: 13

France 2005 Discovery 3 TDV6 HSE Auto Unknown ColourDiscovery 3

Had the same error code this morning on a 2009 Disco IV, checked the inlet manifolds and the RHS one was cracked!

Thanks for this post!

Alex.
  
Post #169052210th Aug 2016 10:48 am
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Landynick
 


Member Since: 30 May 2018
Location: Midhurst, West Sussex
Posts: 6

United Kingdom 2005 Discovery 3 TDV6 HSE Auto Zambezi SilverDiscovery 3

Hi,

have a disco 4 in at the moment, with the same symptoms,

Still getting the P006A Manifold absolute pressure - mass or volume air flow ,, pending

then get P1247 Turbocharger boost pressure low ,,, historic

hhave changed the maf and the manifold pressure sensor, but the above keep coming up, now the dash is showing the engine light.

any thoughts and help please..

thanks
nick
  
Post #195269511th Jun 2018 10:14 am
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DiscoJeffster
 


Member Since: 27 Feb 2016
Location: Perth
Posts: 204

Australia 2010 Discovery 4 3.0 TDV6 HSE Auto Nara BronzeDiscovery 4

Landynick you most likely have a leak. P006A indicates that the boost pressure measured by the MAP sensor hasn’t reached the level expected based on the air that’s passed through the MAF sensor. Look at both manifolds, pipework, etc. I had a crack in my throttle body that caused this error.
  
Post #195313512th Jun 2018 2:29 pm
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Landynick
 


Member Since: 30 May 2018
Location: Midhurst, West Sussex
Posts: 6

United Kingdom 2005 Discovery 3 TDV6 HSE Auto Zambezi SilverDiscovery 3

Found the inlet manifold has split in, ordered another, will post again when fitted,,

Thanks

LandyNick
  
Post #195314112th Jun 2018 2:41 pm
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DiscoJeffster
 


Member Since: 27 Feb 2016
Location: Perth
Posts: 204

Australia 2010 Discovery 4 3.0 TDV6 HSE Auto Nara BronzeDiscovery 4

Don’t forget all the fuel rail elements are one use only and need to be replaced. Don’t risk a high pressure fuel leak that’ll burn it to the ground.
  
Post #195315812th Jun 2018 3:18 pm
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tehribo
 


Member Since: 04 Apr 2019
Location: Plovdiv
Posts: 1

Bulgaria 2010 LR4 3.0 TDV6 HSE Auto Santorini BlackLR4

llessur wrote:
This has happened probably about 5 times now and on every occasion no other code. Originally I thought I was going to see a split hose but I cannot find anything and I would have thought if I had a leak I would trigger the code when thrashing the engine. The only other thing I thought of was a restriction in the intercooler (oil) causing a pressure drop or a leak in the intercooler but if the latter I thought I would either hear something or see staining on the intercooler core.
I did read a post where TLO had commented on a technical bulletin relation to tracking the problem with the P1247 code but the link to it was an orphan so I got nowhere.
If the P1247 comes up when there is a big gap between demand boost and actual boost should I be thinking the worst and I am looking at a turbo failure. Its just it goes really well which makes me think that the turbos are compensating for the error at present and the problem lies elsewhere.
Then again, I am no expert and I have probably got this "round my neck" so to speak


Hello,

I have exactly the same problem as explained by llessur.

Unfortunately he did not replied how he has solved the problem.

P1247 happens only sometimes

I really hope that he will read this reply and give answer...then I pay the weekend in Sunny beach
  
Post #20431084th Apr 2019 1:43 pm
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imaz
 


Member Since: 14 May 2020
Location: Perth
Posts: 5

Australia 2012 Discovery 4 3.0 SDV6 HSE Auto Firenze RedDiscovery 4

Hi,

When the error occurs due to valve or solenoid stuck open(or closed), would you be able to hear suction at the air intake/box upon acceleration? with P1247 error code?
 Regards
Imaz

Discovery 4 2012 HSE SDV6 
 
Post #22903075th May 2022 4:14 am
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jackvoyager
 


Member Since: 02 Oct 2020
Location: Hyde
Posts: 3

United Kingdom 2012 Discovery 4 3.0 TDV6 HSE Auto Bonatti GreyDiscovery 4
P1247

P1247
Before Easter, I was speeding up on the freeway, I heard a faint gunshot somewhere in the front.
Red triangle, no power ...... I rolled home.
The left intake manifold has broken.
I bought a new one on Ebay £ 70, exchange about 6 hours, no rush over coffee.
It drives like new.
  
Post #22906107th May 2022 11:53 am
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imaz
 


Member Since: 14 May 2020
Location: Perth
Posts: 5

Australia 2012 Discovery 4 3.0 SDV6 HSE Auto Firenze RedDiscovery 4

I can’t seem to see any obvious cracks on the manifold, vacuum lines or throttle body visually. I’m going to run a smoke test and see what comes out of it.
 Regards
Imaz

Discovery 4 2012 HSE SDV6 
 
Post #22906998th May 2022 9:20 am
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