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Fuel in my expansion tank
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Bessie1
 


Member Since: 01 Dec 2020
Location: LIVERPOOL
Posts: 4

United Kingdom 2008 Discovery 3 TDV6 Commercial Auto Indus SilverDiscovery 3
Fuel in my expansion tank

Hi guys bought a lr3 about 5 weeks ago commercial one and it didn't start up put a new battery on started up after 5 ten mins with a bit of messing about took it for a run and got 10 mins into the run and it's started like it was missing opened the bonnet and the water cooling assembly was leaking so had it recovered back home got a new part and had fitted now the problem I have is I am getting a lot of fuel in my expansion tank and been told it could be a number of things fuel cooler under the water assembly unit or fuel filter or head gasket any thoughts guys
  
Post #21906911st Dec 2020 2:18 pm
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Flack
 


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

England 2007 Discovery 3 TDV6 XS Auto Stornoway GreyDiscovery 3

Sounds like your fuel cooler under the driver's side might be leaking, are you sure its fuel in the system.? I would have thought if it was the head gasket, it would have over heating problems as well.

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Post #21906991st Dec 2020 3:38 pm
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Bessie1
 


Member Since: 01 Dec 2020
Location: LIVERPOOL
Posts: 4

United Kingdom 2008 Discovery 3 TDV6 Commercial Auto Indus SilverDiscovery 3
Hi

Hi mate it's not overheating to be honest but it's defo fuel in the expansion tank a few people said its fuel filter or fuel cooler broken down and mixing but can't understand why so much fuel is getting into expansion tank or header for radiator
  
Post #21907001st Dec 2020 3:42 pm
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11891952
 


Member Since: 11 Jul 2020
Location: Pulborough
Posts: 83

United Kingdom 2006 Discovery 3 TDV6 SE Manual Zermatt SilverDiscovery 3

When you say the water cooling assembly, is that the oil filter cooler assembly in the vee? This one,



If that has failed, it's likely put a fair amount of oil in the cooling system which would take a lot of flushing out.
  
Post #21908512nd Dec 2020 8:40 am
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Flack
 


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

England 2007 Discovery 3 TDV6 XS Auto Stornoway GreyDiscovery 3

Look at this Topic.. Your picture is the fuel cooled Oil cooler.

https://www.disco3.co.uk/forum/topic177650.html

https://www.ebay.co.uk/i/233452116848?chn=...ZaEALw_wcB

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Post #21908582nd Dec 2020 9:20 am
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Bessie1
 


Member Since: 01 Dec 2020
Location: LIVERPOOL
Posts: 4

United Kingdom 2008 Discovery 3 TDV6 Commercial Auto Indus SilverDiscovery 3

11891952 wrote:
When you say the water cooling assembly, is that the oil filter cooler assembly in the vee? This one,



If that has failed, it's likely put a fair amount of oil in the cooling system which would take a lot of flushing out.
  
Post #21908722nd Dec 2020 11:11 am
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Bessie1
 


Member Since: 01 Dec 2020
Location: LIVERPOOL
Posts: 4

United Kingdom 2008 Discovery 3 TDV6 Commercial Auto Indus SilverDiscovery 3

No it's not that one it's on the top of the engine where it sits on top of the fuel cooler
  
Post #21908742nd Dec 2020 11:12 am
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BrokenLr3
 


Member Since: 10 Feb 2024
Location: Leeds
Posts: 3

United Kingdom 2006 Discovery 3 TDV6 Landmark LE Auto Barolo BlackDiscovery 3

Hiya mate .. did you get to bottom of this ? Mines started doing it .. I've replaced the cooler that's underneath the drivers side and it's still pumping fuel into the coolant system . Was thinking the next thing would be the oil cooler that's in the middle of the V top of the engine that the oil filter screws into.. but I don't want to mess about with it as I'm not sure fuel goes into that ? So wondered if you'd remedied the problem... cheers
  
Post #236159810th Feb 2024 12:33 pm
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