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DISCO3.CO.UK > Faults & Fixes (D4)

Restricted performance whilst towing caravan - TSB info reqd

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gvw

Member Since: 16 Jan 2012
Location: South Yorkshire
Posts: 872

2009 Discovery 4 3.0 SDV6 HSE Auto Santorini Black

Restricted performance whilst towing caravan - TSB info reqd

Coming home with the caravan on the motorway with cruise control set at 60 I could feel the car surging slightly. A short time later I get a red triangle and restricted performance warning message on the dashboard. I took the car off cruise and continued for a few miles as I was due to leave the motorway shortly and the car would still go 60 on the flat, dropping to 50 on inclines.
On leaving the motorway I pulled over and restarted the engine but the message came up straight away.
I drove a bit further and then stopped and tried again but same result.
I was about 20 miles from home at this point so just decided to limp home.
After leaving the car for 20 mins or so whilst I put the caravan away I started it up again and this time all was ok.

I checked the codes with my IID and it showed -
P2263-22 (68) Turbo/supercharge boost system performance - General signal failure - signal amplitude>maximum

A check on this fine site suggested it could be due to a fault on the turbo shutoff valve or throttle body and that there are TSBs for these known faults.
Could anyone please send me details of the relevant TSBs

28th May 2017 11:44 pm

gvw

Member Since: 16 Jan 2012
Location: South Yorkshire
Posts: 872

possibly LTB00504v3 Compressor shut off valve repair???

Open to suggestions and thoughts of the collective

29th May 2017 11:41 am

Flack

Member Since: 06 Sep 2006
Location: Preston Lancashire
Posts: 6308

2007 Discovery 3 TDV6 XS Auto Stornoway Grey

Sounds like the TSOV is sticking, remove the plastic sheild from under the drivers side front and check that the valve servo rod can be moved, you can check the operation of the valve with the engine running by removing a small vac pipe at the front of the engine and listening to the valve to here it open/shut when you block the pipe.

Flack

29th May 2017 11:46 am

daftlad

Member Since: 12 Jun 2016
Location: Worksop , Nottinghamshire
Posts: 712

2009 Discovery 3 TDV6 HSE Auto Stornoway Grey

Hi
Is this a D4 only issue or can this happen on the 3
Phil

29th May 2017 12:09 pm

gvw

Member Since: 16 Jan 2012
Location: South Yorkshire
Posts: 872

Hi Flack
thanks for the reply

I must confess that I don't really know what I'm looking at but I think I followed your instructions.

On removing the plastic shield I found this -

Click image to enlarge

The linkage could be moved by hand but not much.
I started the car and after a minute or so removed the rubber pipe shown and you could hear quite a loud bang noise as the valve operated.
I take it that's a good sign?

We are away again in a month or so and wonder if I need to get it looked at

29th May 2017 12:44 pm

gvw

Member Since: 16 Jan 2012
Location: South Yorkshire
Posts: 872

Just been back out and tried it again and now think it was sticking a bit as I have given it a good wan*ing using a screwdriver as a lever and it seems quite a bit easier.
Does it need lubricating?
Thanks

29th May 2017 12:56 pm

James1974

Member Since: 23 Nov 2017
Location: Stevenage
Posts: 990

2010 Discovery 4 3.0 TDV6 XS Auto Barolo Black

Flack wrote:
Sounds like the TSOV is sticking, remove the plastic sheild from under the drivers side front and check that the valve servo rod can be moved, you can check the operation of the valve with the engine running by removing a small vac pipe at the front of the engine and listening to the valve to here it open/shut when you block the pipe.

Flack

What pipe on the front of the engine do u remove Disco 3 gone but not forGotten
Welcome disco 4
Flappy paddles working from gap
Heated steering wheel done
Bluetooth iPod connection done
Xeon lights (facelift) done
Afs retrofit done
Logic 7 retrofit done
Armrest fridge
Facelift rear lights
Retrofit High beam assist done
Genuine 22” Range Rover sport alloys
Retrofit acc (gave up not possible)
retrofit tpms done
Retrofit Range Rover lcd digital dash. Done
Retrofit blind spot assist done

27th May 2020 12:50 pm

gvw

Member Since: 16 Jan 2012
Location: South Yorkshire
Posts: 872

Have you tried a bit of lubrication and working free?

28th May 2020 9:27 pm

James1974

Member Since: 23 Nov 2017
Location: Stevenage
Posts: 990

Mine moves ok
If I have someone Rev it to 3000 odd revs and it opens then closes
I did find a snapped vacuum pipe on one of the engine mounts just wondering if that could be the cause of it Disco 3 gone but not forGotten
Welcome disco 4
Flappy paddles working from gap
Heated steering wheel done
Bluetooth iPod connection done
Xeon lights (facelift) done
Afs retrofit done
Logic 7 retrofit done
Armrest fridge
Facelift rear lights
Retrofit High beam assist done
Genuine 22” Range Rover sport alloys
Retrofit acc (gave up not possible)
retrofit tpms done
Retrofit Range Rover lcd digital dash. Done
Retrofit blind spot assist done

28th May 2020 10:42 pm

Hot Tub

Member Since: 15 Aug 2017
Location: Milton Keynes
Posts: 1071

2009 Discovery 3 TDV6 HSE Auto Zermatt Silver

We are away again in a month or so and wonder if I need to get it looked at[/quote]

How come you can go away we was away with caravan when lock down began and had to cut short our holiday and being told CC sites not open again until possibly July

The only others who I have seen towing caravans park at the side of the road leaving their rubbish behind when they move on

I hope you get the issue sorted

but had to ask the question

Welsh Collie Chauffeur Service To Barney & Rooney.

29th May 2020 1:42 am

Hot Tub

Member Since: 15 Aug 2017
Location: Milton Keynes
Posts: 1071

Or is your name Cummings

Welsh Collie Chauffeur Service To Barney & Rooney.

29th May 2020 5:13 am

adam

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

Or probably because it was 3 years ago. Now Golf GTI PP, 7 speed DSG.
Ex D3 and D4

29th May 2020 6:50 am

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