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XC90 '02–'15 General Forum for the P2-platform XC90 model |
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Strange coolant loss issueViews : 542 Replies : 6Users Viewing This Thread : |
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Nov 29th, 2018, 22:20 | #1 |
bike or car today
Last Online: Aug 15th, 2019 21:10
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Location: Beverley
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Strange coolant loss issue
09 XC90 D5
Had a strange coolant loss recently. Now I'm a regular checker or tyre pressure, oil, coolant etc so I know its not a gradual leak. Few weeks ago on my commute I got the red warning triangle and low coolant message. Was a few hundred yards from work so parked up and checked the tank and sure enough the level was down towards the bottom of the tank. Topped up and commute home (26 miles) stopped a couple of times to check the level and all good. It stayed at that level for a couple of weeks and then I got the message again. Similar level in tank. Again topped up and was good again for a couple of weeks. Have been regularly checking the level so hence I know its not a slow leak. So that's three times I've had a sudden loss of coolant. Checked the engine bay when its been running at normal temperature and no signs of a leak. Anybody got any idea's whats going on? |
Nov 29th, 2018, 22:43 | #2 |
Ex Trog
Last Online: Mar 22nd, 2024 09:39
Join Date: Jul 2018
Location: Norfolk
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I had a similer thing happen to my Jeep Cherokee, coolant loss was small, pressure test was ok so was the sniff test, no signs of exterior leaks, eventualy had to have the head off, turned out that there was a small crack near exhaust valve, so coolant was going down exhaust manifold, which is a bit hot causing coolant to turn to steam and out it went via exhaust pipe, only cost me just over three grand to get it fixed.
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Nov 30th, 2018, 02:47 | #3 | |
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Last Online: Today 05:17
Join Date: Apr 2009
Location: Near Plymouth
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Quote:
it would lose coolant on a run but when you stopped to check everything you could not find a leak anywhere. To cut a long story short it was the hose from the expansion bottle had worn under the clip that holds it to the bottle (the squeeze together with pliers type wire clip... not a jubilee type clip) but would not leak until the engine caused flow under pressure. A relatively cheap fix but a bugger to find. Worth a look maybe?? Hope this helps.
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Dec 10th, 2018, 19:52 | #6 |
bike or car today
Last Online: Aug 15th, 2019 21:10
Join Date: Aug 2013
Location: Beverley
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Just to bring closure to this thread.
The leak was from the thermostat housing, specifically the gasket in the middle of it. Just happened to be lucky one night when I got home and checked under the bonnet and saw the leak. Still don't understand why it was an intermittent leak though. |
Dec 11th, 2018, 03:44 | #7 |
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Last Online: Today 05:17
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Glad you found it in the end
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MY14 XF S V6 3.0 Sportbrake Portfolio in Ultimate Black Metallic and black 20"alloys MY08 Xc90 D5 185 Se Lux Satnav Geartronic. Much loved gone now but not forgotten. Wherever you go............There you are!!! |
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