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Pinky



Member Since: 09 Jun 2016
Location: England
Posts: 208
England 2011 Defender 110 Puma 2.4 DCPU Baltic Blue
Coolant woes!
So, on top of my ABS problems I now have a coolant problem. It is being pushed out of the cap and the heater valve. I had a new heater valve fitted a few months ago because it was leaking but now it’s much worse and coming from the cap which again was replaced. I’m guessing something is pressurising it. I have no overheating, the gauge remains steady at half way, no problem starting, runs fine pulls ok, there is a slight stutter if I over rev before changing gear but that could be to do with the map. I read on another thread that the egr cooler could be a cause of a pressurised system, any other thoughts gratefully received.
Post #790098 2nd Sep 2019 2:41pm
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andydef90



Member Since: 09 Feb 2015
Location: yorkshire
Posts: 617
United Kingdom 2014 Defender 90 Puma 2.2 HT Corris Grey
there is more than one cap check you have the right one also is the thermostat working correctly if slow to open that could cause pressure in the system good luck
Post #790313 3rd Sep 2019 6:09pm
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Pinky



Member Since: 09 Jun 2016
Location: England
Posts: 208
England 2011 Defender 110 Puma 2.4 DCPU Baltic Blue
Definitely have the right cap, had several over the years! I think I’ll give the thermostat a try before going to the indy.
Thanks.
Post #790353 3rd Sep 2019 7:53pm
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Sulisuli



Member Since: 30 Oct 2016
Location: South west
Posts: 4795
United Kingdom 2015 Defender 90 Puma 2.2 HT Corris Grey
I’d be checking the thermostat next, good luck hope it’s a cheap fix for you Thumbs Up 2015 HT XS 90
2008 SVX 90
2000 XS TD5 90
Post #790356 3rd Sep 2019 7:55pm
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Pinky



Member Since: 09 Jun 2016
Location: England
Posts: 208
England 2011 Defender 110 Puma 2.4 DCPU Baltic Blue
So, I’ve changed the thermostat and things seem ok so far. The temperature gauge comes up so much quicker than before and no expulsion of water yet! However, the bottom hose is still cold even after a run, is that normal?
Post #793405 16th Sep 2019 7:37pm
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NickMc



Member Since: 01 Oct 2014
Location: Norn Iron
Posts: 1624
Northern Ireland 2006 Defender 90 Td5 HT Bonatti Grey
Is your water pump ok?
Post #793442 16th Sep 2019 9:55pm
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Pinky



Member Since: 09 Jun 2016
Location: England
Posts: 208
England 2011 Defender 110 Puma 2.4 DCPU Baltic Blue
How would one tell?
Post #793470 17th Sep 2019 6:16am
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