looneyfitter
Member Since: 15 May 2012
Location: liverpool
Posts: 120
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| Evening, 2.7 tdv6 not being friendly. |
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Hi hope everyone is well. Wondering if anyone can shed some light on an issue please?
I have a 2005 2.7 tdv6 sport. (Sorry i know its not a d3)
Which one of my lads uses as a company car. Well this evening. He rang me to say it just wouldnt start again 5 mins after he cut the engine.
I went down and had a look, pump relay is fine, can hear the LP pump kicking in and I have fuel at the Schrader.
Wouldnt start, pulled the intake and managed to get her running on some Sure deodorant lol.
Issue is, it just wont rev over 1500rpm at a push. She hobbled home at 5mph.
Loads of white smoke for 10 mins or so then smoke stopped. I suspect was excess fuel in the exhaust being burnt off..
No mil light etc.
Any ideas or pointers?
Many thanks.
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 2nd Jul 2021 10:59 pm |
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Patman
Member Since: 16 Aug 2019
Location: Cornwall
Posts: 314
 
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really need to get a code reader as it could be myriad of things from simple faulty sensor to blocked fuel pipe
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| 2nd Jul 2021 11:27 pm |
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Pete K
Member Since: 15 Jan 2016
Location: GL
Posts: 10674
 
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My bet is broken chain in passenger head. But that is wild ass guess
Edit. Probably not, if you managed to drive it
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| 3rd Jul 2021 8:03 am |
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looneyfitter
Member Since: 15 May 2012
Location: liverpool
Posts: 120
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Morning, yes managed to drive it back a couple of miles but it struggled. Had to push it up a hill with my van as didnt have the power.
It certainly seems like a fuel issue. What pressure should I be getting at the schraeder?
Will try and grab a code reader from someone. Its not got any Mil lights on though.
Fuel filter hasnt been changed for a while so will also swap that.
Cheers
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| 3rd Jul 2021 9:42 am |
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aja4x4
Member Since: 14 Apr 2019
Location: Westbury
Posts: 2463
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https://www.disco3.co.uk/wiki/Low_Pressure_fuel_pump_diagnosis
I would start by fitting a good quality fuel filter and dont forget to prime the new filter by turning the ignition on for 30 seconds then off for 5 seconds repeat three times to be sure before attempting to start the engine.
These engines can take forever to start if you run the high pressure system out of fuel and with your current problem you will find it a lot harder to diagnose. Andrew
D3 2.7tdv6 2005
D4 3.0 SDV6 Commercial died and gone to LR heaven
D5 3.0 SDV6 HSE
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| 3rd Jul 2021 10:09 am |
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looneyfitter
Member Since: 15 May 2012
Location: liverpool
Posts: 120
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Hi all update. Been back under the bonnet today.
So definately fuel, LP pump is fine at 0.5bar.
Starts and idles rough,
If i pull power on one of the drivers side injectors, it cuts out.
If I pull all 3 injector power to passenger side, it stays running exactly the same.
Issue is definately passenger bank.
I have 12v on green/pos battery, but nothing on both injector terninals. Assume green is just ground?
How do I check the injector power? Does each bank have a seperate fuse?
Cheers Gareth
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| 5th Jul 2021 3:07 pm |
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Pete K
Member Since: 15 Jan 2016
Location: GL
Posts: 10674
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You really shouldn’t unplug plug injectors in while running in these cars.
They can stay stuck open as piezo
Maybe my first guess was correct! Passenger chain and no compression on that side
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| 5th Jul 2021 3:16 pm |
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looneyfitter
Member Since: 15 May 2012
Location: liverpool
Posts: 120
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Hi Pete, didnt know that mate, thanks for the heads up. Why do you mean by chain? I thought the 2.7 uses a timing belt? If the part you say has gone, is it a right off engine or easy fix?
Cheers Gareth
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| 5th Jul 2021 5:12 pm |
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ronnie12342003
Member Since: 20 Jun 2016
Location: london
Posts: 55
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theres a chain that links the cams
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| 5th Jul 2021 5:16 pm |
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looneyfitter
Member Since: 15 May 2012
Location: liverpool
Posts: 120
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Just googled it. So theres a chain within the rocker cover that operates the timing for inlet and outlet as well as the timing belt. 😩. Doesnt sound good.
Are these non destructive, and how hard to change the chain as set back up? Are the cam timing marks marked up?
Thanks Again
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| 5th Jul 2021 5:18 pm |
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Pete K
Member Since: 15 Jan 2016
Location: GL
Posts: 10674
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Some people have been lucky fitting a new chain.
Other have fitted a second hand head.
Getting the passenger cam cover off is a bit of a pig. There are guides on here
Once off. Fitting a new chain isn’t too bad. There are marks
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| 5th Jul 2021 5:27 pm |
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looneyfitter
Member Since: 15 May 2012
Location: liverpool
Posts: 120
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Thanks mate will give it a search. Would you say swap the chain and see how it goes from there?
Cheers.
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| 5th Jul 2021 5:34 pm |
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looneyfitter
Member Since: 15 May 2012
Location: liverpool
Posts: 120
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Pete dont suppose you have a link to the how too do you please? Ive done a search but cant seem to find it.
Cheers Gareth
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| 5th Jul 2021 5:48 pm |
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Pete K
Member Since: 15 Jan 2016
Location: GL
Posts: 10674
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I guess the first step is to remove the passenger injectors (or front 2 easy ones anyway) and prove there is no compression.
I think you need to refit the injectors to metal pipes if you can, to block off the fuel system, as its very high pressure. Leave wiring disconnected. and remove fuel pump fuse. (there will still be dangerous pressure though)
link
https://www.disco3.co.uk/forum/topic154075-45.html
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| 5th Jul 2021 6:04 pm |
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looneyfitter
Member Since: 15 May 2012
Location: liverpool
Posts: 120
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Thanks pete, will order a compression tester now.
Out of interest. You say the pas side cover is a pain to remove. Is this the same on a sport do you know?
Mines a sport, not a disco.
Cheers Gareth
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| 5th Jul 2021 6:53 pm |
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