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Not running properly

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turborange

Member Since: 12 Mar 2014
Location: Sheffield
Posts: 56

2005 Discovery 3 TDV6 SE Auto Zermatt Silver

Not running properly

My wife was driving the car up the motorway when she had a loss of power. At this point she saw what she thought was smoke coming out so she pulled on the the hard shoulder where it cut out. On inspection the thermostat housing o ring had failed and had leaked under pressure all the coolant out straight on to the diesel leak off pipe causing this to melt. What she thought was smoke was steam.

I have stripped it all down to replaced the leak off pipes and thermostat housing bled the diesel up and it will run but not very well sound like it’s running on 3-4 cylinders. I’ve managed to drive it on to the driveway in low as in high it stalls out. I’m thinking that maybe she has drove it with little or no coolant in and has possibly done the heads in but not sure.

It’s not using coolant
No fault codes
Up to this happening it was running fine

I have Hawkeye and idd tool

Any help would be greatly appreciated current
D3 SE 2.7 tdv6
D2 TD5 Td5 inside tuned
RRC 200tdi front and rear locking diffs on 35's

8th Aug 2020 3:28 pm

Pete K

Member Since: 15 Jan 2016
Location: GL
Posts: 10372

2005 Discovery 3 TDV6 HSE Auto Rimini Red

Read engine fault codes. Edit. Oh you have none

Are there any balancing codes ?

Wonder if a chain has gone in the top of one head.
Don’t know why it Would happen at This time

8th Aug 2020 3:45 pm

turborange

Member Since: 12 Mar 2014
Location: Sheffield
Posts: 56

Done a test definately looks like the head/s have gone current
D3 SE 2.7 tdv6
D2 TD5 Td5 inside tuned
RRC 200tdi front and rear locking diffs on 35's

8th Aug 2020 5:47 pm

Globetrotter448

Member Since: 21 Mar 2017
Location: Londonderry NSW
Posts: 1783

2007 Discovery 3 4.0 V6 Petrol SE Auto Java Black

Do a compression check as those injectors may be related to the leak off pipe you replaced

9th Aug 2020 1:33 am

lynalldiscovery

Member Since: 22 Dec 2009
Location: Maidstone
Posts: 7274

2006 Discovery 3 TDV6 Metropolis LE Auto Bonatti Grey

Low coolant might have damaged bores rather than the heads, ie they have picked up due to overheating.

9th Aug 2020 5:33 am

turborange

Member Since: 12 Mar 2014
Location: Sheffield
Posts: 56

Thinking of getting a bore scope in there to have a look does anyone know the best place/easiest place to enter the bore?

Dash is saying low coolant even though it’s full.

Tried a sniff test on the header that’s come up negative

Will only start and idle if you start it with accelerator down a bit then ease it off and it will idle

Appreciate all the help people had this disco for nearly 6 years done over 100k in it and it over 250k on the clock and don’t really want to scrap it if I’m honest. It might not be worth a lot but it is to me in other ways current
D3 SE 2.7 tdv6
D2 TD5 Td5 inside tuned
RRC 200tdi front and rear locking diffs on 35's

9th Aug 2020 11:36 am

jenseneverest

Member Since: 12 Jun 2017
Location: somewhere
Posts: 769

2005 Discovery 3 TDV6 Base 7 Seat Manual Zambezi Silver

did you replace the thermostat ?
A compression test would be a good indicator of damage to the bores - head gasket
I dont know if it is possible....BUT could you not swop 2 of the good /bad injectors over to see if that trim problem transfers??

9th Aug 2020 11:47 am

PROFSR G

Member Since: 06 Mar 2017
Location: Lost
Posts: 4668

2009 Discovery 3 TDV6 Commercial XS Auto Stornoway Grey

turborange wrote:
Thinking of getting a bore scope in there to have a look does anyone know the best place/easiest place to enter the bore?

Dash is saying low coolant even though it’s full.

Tried a sniff test on the header that’s come up negative

Will only start and idle if you start it with accelerator down a bit then ease it off and it will idle

Appreciate all the help people had this disco for nearly 6 years done over 100k in it and it over 250k on the clock and don’t really want to scrap it if I’m honest. It might not be worth a lot but it is to me in other ways

You'll have to pull the injectors and slip a 5 mm borescope down there. yµ (idµ - eAµ) ψ=mψ

9th Aug 2020 4:31 pm

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