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Tank



Member Since: 25 Jul 2014
Location: Fife
Posts: 430
Scotland 2004 Defender 90 Td5 HT Zermatt Silver
TD5 - Fuel in the coolant!
Ok cleaver people! Question.

I have a 2004 TD5 and have diesel in the coolant system! How?

I have changed the fuel cooler and the fuel regulator and thought that would do the trick, but no!

How else can fuel get into the coolant system.

Any advice greatly received Smile

Thanks

Duncan
Post #634707 30th Jun 2017 5:03pm
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custom90



Member Since: 21 Jan 2010
Location: South West, England.
Posts: 19574
United Kingdom 
Are you sure the fuel cooler pipes are the right way around?
On the Puma the two are right next to one another, not sure about the TD5?

So you have diesel and coolant passing through, in separate pipes right next to one another. Diesel$ Live$ Matter. ⛽️🛢️👨‍🔧🧰⚙️ RED, WHITE & BOOST! 🇬🇧
Post #634710 30th Jun 2017 5:13pm
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Tank



Member Since: 25 Jul 2014
Location: Fife
Posts: 430
Scotland 2004 Defender 90 Td5 HT Zermatt Silver
Hope so it was fitted by Gem 4x4 a Land Rover specialist!
Post #634712 30th Jun 2017 5:16pm
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Tank



Member Since: 25 Jul 2014
Location: Fife
Posts: 430
Scotland 2004 Defender 90 Td5 HT Zermatt Silver
Anyone got an idea?
Post #634788 30th Jun 2017 9:43pm
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grafty99



Member Since: 15 Aug 2012
Location: North Devon
Posts: 4784
United Kingdom 2002 Defender 90 Td5 HT Caledonian Blue
Td5 runs an internal fuel rail in the head. Worst case it could be a cracked head or head gasket. 2002 90 Td5 Station Wagon
1990 Vogue SE
Triumph Tiger Explorer 1200
Td5 90 Thread http://www.defender2.net/forum/topic50767.html
Tdi 110 Thread https://www.defender2.net/forum/topic69562.html
RRC Thread http://www.defender2.net/forum/topic54492.html
Instagram http://www.instagram.com/george_grafton
Post #634792 30th Jun 2017 9:59pm
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Tank



Member Since: 25 Jul 2014
Location: Fife
Posts: 430
Scotland 2004 Defender 90 Td5 HT Zermatt Silver
Would there not be other symptoms?

How would I suss that out?
Post #634793 30th Jun 2017 10:03pm
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grafty99



Member Since: 15 Aug 2012
Location: North Devon
Posts: 4784
United Kingdom 2002 Defender 90 Td5 HT Caledonian Blue
I think a pressure test would be a good option Thumbs Up 2002 90 Td5 Station Wagon
1990 Vogue SE
Triumph Tiger Explorer 1200
Td5 90 Thread http://www.defender2.net/forum/topic50767.html
Tdi 110 Thread https://www.defender2.net/forum/topic69562.html
RRC Thread http://www.defender2.net/forum/topic54492.html
Instagram http://www.instagram.com/george_grafton
Post #634795 30th Jun 2017 10:08pm
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grafty99



Member Since: 15 Aug 2012
Location: North Devon
Posts: 4784
United Kingdom 2002 Defender 90 Td5 HT Caledonian Blue
If you've replaced everything where fuel and coolant interact then there isn't much else it could be I wouldn't have thought? 2002 90 Td5 Station Wagon
1990 Vogue SE
Triumph Tiger Explorer 1200
Td5 90 Thread http://www.defender2.net/forum/topic50767.html
Tdi 110 Thread https://www.defender2.net/forum/topic69562.html
RRC Thread http://www.defender2.net/forum/topic54492.html
Instagram http://www.instagram.com/george_grafton
Post #634796 30th Jun 2017 10:09pm
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Tank



Member Since: 25 Jul 2014
Location: Fife
Posts: 430
Scotland 2004 Defender 90 Td5 HT Zermatt Silver
So what's a new cyclinder head gona cost?
Post #634798 30th Jun 2017 10:22pm
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grafty99



Member Since: 15 Aug 2012
Location: North Devon
Posts: 4784
United Kingdom 2002 Defender 90 Td5 HT Caledonian Blue
Around 1000+vat but I think there is possibly some more investigation to be done first. I'm only going on a hunch Thumbs Up 2002 90 Td5 Station Wagon
1990 Vogue SE
Triumph Tiger Explorer 1200
Td5 90 Thread http://www.defender2.net/forum/topic50767.html
Tdi 110 Thread https://www.defender2.net/forum/topic69562.html
RRC Thread http://www.defender2.net/forum/topic54492.html
Instagram http://www.instagram.com/george_grafton
Post #634802 30th Jun 2017 10:36pm
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blackwolf



Member Since: 03 Nov 2009
Location: South West England
Posts: 16879
United Kingdom 2007 Defender 110 Puma 2.4 DCPU Stornoway Grey
If the 'O' rings in the cooler haven't been correctly fitted it may still be leaking.
Post #634807 30th Jun 2017 10:46pm
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Tank



Member Since: 25 Jul 2014
Location: Fife
Posts: 430
Scotland 2004 Defender 90 Td5 HT Zermatt Silver
Cheers, will take it back to the garage next week! Hope its that!
Post #634810 30th Jun 2017 11:01pm
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derbywill



Member Since: 25 Mar 2010
Location: Derbyshire
Posts: 539
England 2005 Defender 90 Td5 XS CSW Java Black
Did it have a new fuel cooler or seals replaced? The seals only stop coolant leaking to atmosphere, inside there is tubes which the fuels flows around, these are welded stainless which could possibly crack.
When the seals on the injectors leak you would expect oils level rising.

Kind Regards

Will 2005 90 XS
1954 86'' Series 1 tilt
Post #634814 30th Jun 2017 11:23pm
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Tank



Member Since: 25 Jul 2014
Location: Fife
Posts: 430
Scotland 2004 Defender 90 Td5 HT Zermatt Silver
It had a brand new fuel cooler fitted?
Post #634824 1st Jul 2017 4:12am
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CDN38



Member Since: 14 Nov 2014
Location: Courtenay, BC
Posts: 729
Canada 2000 Defender 110 Td5 SW Bonatti Grey
Are you 100% sure it's fuel in the coolant, not oil? it's a Landrover thing...

my renovation thread:
http://www.defender2.net/forum/topic40792.html
Post #634916 1st Jul 2017 4:56pm
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