Advertise on DISCO3.CO.UK
Forum · Gallery · Wiki · Shop · Sponsors
DISCO3.CO.UK > General

Fuel system return line popping off
Post Reply  Down to end
Page 1 of 1
Frudo
 


Member Since: 18 May 2013
Location: Stoke on Trent
Posts: 8

United Kingdom 2005 Discovery 3 TDV6 HSE Auto Indus SilverDiscovery 3
Fuel system return line popping off

Hi Guys,
Can anyone let me know where I can find the disco 3 fuel system diagrams? I am having a problem with my return line popping off when I apply the revs. I took it to 3 different mechanics including LR who diagnosed it as 3 injectors failed, I then took it to an injector specialist who said all the injectors was fine, however there was a crack on the fuel cooler which I replaced, he also replaced the fuel return lines. This solved the return line popping problem for couple days but now the return line is popping off again. I was reading somewhere that if the fuel filter is not placed on correctly or not vented it can cause a pressure build-up in the system (fuel filter was replaced couple months ago and not sure if the guy vented it off properly). I also read that it could be the seal on the infector (Not the injector) that is gone and this would cause excess pressure on the return line.
At present I am lost and I was hoping to find the fuel system diagram somewhere so that I can probably find a solution. Any suggestion would be greatly appreciated.
Big Cry
  
Post #114511318th Aug 2013 11:12 am
View user's profile Send private message View poster's gallery Reply with quote
StaffsNick
 


Member Since: 21 May 2012
Location: North Staffordshire
Posts: 110

United Kingdom 2005 Discovery 3 TDV6 HSE Auto Bonatti GreyDiscovery 3

Have a look at these PDFs, originally posted by 10forcash

http://www.disco3.co.uk/gallery/albums/use...0Lines.pdf

http://www.disco3.co.uk/gallery/albums/use...20TDV6.pdf
 55 Plate TDV6 HSE Bonatti Grey, Cool Box, D4 Bluetooth, Side Steps, BAS EGR Blanking, V8 Discs, Polybush Dynamics, SNOTM, Three Flash Indicators, HIDS4U LED Sidelights, Replacement Clock Spring, TSL, Auto Box Flush + Dr. Tranny, BAS Remap Thumbs Up IIDTool V2.18  
Post #114513018th Aug 2013 12:21 pm
View user's profile Send private message View poster's gallery Reply with quote
Flack
 


Member Since: 06 Sep 2006
Location: Preston Lancashire
Posts: 6224

England 2007 Discovery 3 TDV6 XS Auto Stornoway GreyDiscovery 3

I recently had this on a RRS and I had changed the fuel filter, I bled it and got the car started and it was fine.
But on his way home it blew one of the pipes off the injector, number 2 injector on the drivers side. I checked it all out put the pipe back on and he drove it around and all seemed fine. So off he went again.. and 5 mins later it did the same. i then placed some wire around the pipe and he drove it home 20 miles no problem.

But the next morning he broke down again and this time it would not start and no matter what i tried it would not go, I bled it for ages, checked it all out even with my FM, no faults logged.

Anyway after spending a couple of hours trying to start it I did manage to get it going but it would not rev for the first minute no response from the throttle, but slowly it came back to life and then ran as smooth as a sowing machine and has done ever since.
I could not say what fixed it because I did not find anything wrong, I can only think it was some dirt in the system and it finally cleared it and pushed it through to the filter .


Flack Thumbs Up
  
Post #114513918th Aug 2013 1:06 pm
View user's profile Send private message View poster's gallery Send e-mail Reply with quote
geoff.
 


Member Since: 24 Jan 2010
Location: West kent
Posts: 8531

England 

which one keeps popping off Question
  
Post #114516918th Aug 2013 3:06 pm
View user's profile Send private message View poster's gallery Reply with quote
Frudo
 


Member Since: 18 May 2013
Location: Stoke on Trent
Posts: 8

United Kingdom 2005 Discovery 3 TDV6 HSE Auto Indus SilverDiscovery 3

Thanks for the replies so far guys, it is a big help, I am considering a fuel system clean by my local dealer if it might be dirt.
If you are facing the car from the bonnet it’s the first one on the left.
  
Post #114519818th Aug 2013 4:30 pm
View user's profile Send private message View poster's gallery Reply with quote
Frudo
 


Member Since: 18 May 2013
Location: Stoke on Trent
Posts: 8

United Kingdom 2005 Discovery 3 TDV6 HSE Auto Indus SilverDiscovery 3
Fuel system return line popping off

Hey StaffsNick,

Thanks for the links, I was briefly looking at the PDF and I'm thinking it might be the PCV (Pressure Control Valve) that needs adjusting. I was reading that it regulates the amount of fuel pressure in the fuel rail and is controlled by the ECM. So my conning plan is to ask my local mechanic to see if he can reset or adjust the fuel pressure or see if anything looks abnormal with the system pressure. Ill keep you all informed.
  
Post #114549719th Aug 2013 10:30 am
View user's profile Send private message View poster's gallery Reply with quote
Andy03
 


Member Since: 02 Dec 2012
Location: Four Marks
Posts: 27

England 2007 Discovery 3 TDV6 S Auto Zambezi SilverDiscovery 3

Hi
This is exactly what i am getting.
What was the issue in the end?
  
Post #21252602nd Mar 2020 5:49 pm
View user's profile Send private message View poster's gallery Reply with quote
Motolab
 


Member Since: 18 Oct 2019
Location: Sleen
Posts: 1815

Netherlands 2006 Discovery 3 TDV6 HSE Auto Zambezi SilverDiscovery 3

Hi Andy, you may be lucky, but the last post from frudo was 7 years ago 8)
Big chance he moved “on”
 Best regards
Harold

Always looking for Pre '55's & Pre war British Motorcycles! knowing or having one for sale? PM please. I visit the UK 6 times a year

Ps. I edit my texts quite often, english is not my native language, so I will edit My “typo’s” etc. Wink 
 
Post #21252842nd Mar 2020 6:48 pm
View user's profile Send private message View poster's gallery Reply with quote
aja4x4
 


Member Since: 14 Apr 2019
Location: Westbury
Posts: 2459

United Kingdom 2005 Discovery 3 TDV6 SE Auto Zambezi SilverDiscovery 3

If you get the pipes around the wrong way on the filter this will happen on the early models
  
Post #21252862nd Mar 2020 6:53 pm
View user's profile Send private message View poster's gallery Reply with quote
rowlejohn
 


Member Since: 15 Sep 2017
Location: Montmorillon, Vienne (86)
Posts: 204

France 2008 Discovery 3 TDV6 HSE Auto Buckingham BlueDiscovery 3

Had the same problem a couple of years ago.
The single pipe from the "T" piece at the front of the engine which goes down to a connector in front of the oil filter had kinked which created back pressure and blew a couple of the fittings complete with the leak off pipes attached, out of two injector bodies.

Another thing that is important to remember is that the leak off fittings wire spring retaining clip must be fitted the right way round otherwise it will not hold the fitting securely in place.

I replaced my leak off fittings with metal-far better than the plastic originals and fitted new braided pipes which I secured with wire ties.

TIP:

To remove and refit the wire retaining "U" clips, use a pair of locking bent nose forceps which are available from Fishing Tackle shops and to be on the safe side get a couple of spare clips to hand..they are easily lost in the bowels of the engine if you are unfortunate to drop them Big Cry
 Relocated to Mid France from N. Wales March 2021
Rovacomlite and IDD/ SSD diagnostics user
Previous Landies
3.9 SE Classic
3.5 V8 Disco
4.6 P38 HSE
L322 Vogue HSE
TD4 ES Freelander 1 
 
Post #21254963rd Mar 2020 3:36 pm
View user's profile Send private message View poster's gallery Reply with quote
John Andre Ognheim
 


Member Since: 29 Oct 2013
Location: Bergen
Posts: 110

Norway 2006 Discovery 3 TDV6 HSE Auto Bonatti GreyDiscovery 3

Experienced the same this weekend, middle leak off hose popped off on the LH middle injector.
Got it back in plasce with tie rap on, all fine.
drove a few km more, and then lots off alarms, special programs off, F in the display.
Stopped the car, and same hose , just the other popped off the rear injector LH side.
After that, the car wouldnt start.
Managed to get some help, and fitted a new hose.
Engine started, but run like an old 2 cylinder boat engine.
But now, it seems like its leaking diesel from the plastic nozzle part, secured with the metal clip.
Small drops off fluid coming out.

And 4 injector balance are out off limit, like around 600 on the Nanocom.
So I`ll imagine its to high pressure on the leak line?

changed the diesel filter in august, if i managed to connect filter hoses wrong, shouldnt this happened earlier if so was?

cheers
 D3, MY06  
Post #217953611th Oct 2020 10:35 pm
View user's profile Send private message View poster's gallery Send e-mail Reply with quote
Lukie
 


Member Since: 06 Jun 2020
Location: Liverpool
Posts: 23

United Kingdom 2005 Discovery 3 TDV6 Base 7 Seat Auto Unknown ColourDiscovery 3

Same issue myself past week or so, the pipe on mine is front left when looking at engine

Changed pipe as it looked bad, changed fuel filter for good measure

Does anyone know what part number the return valve is?

Do i need to drop the tank to get to it?
  
Post #218286827th Oct 2020 6:54 pm
View user's profile Send private message View poster's gallery Post Reply
Display posts from the last:  
Post Reply Back to top
Page 1 of 1
Jump to:  
Previous Topic | Next Topic >


Posting Rules
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum



DISCO3.CO.UK Copyright © 2004-2024 Futuranet Ltd & Martin Lewis
DISCO3.CO.UK RSS Feed - All Forums

DISCO3.CO.UK is independent and not affiliated to Land Rover.
Switch to Mobile Site