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S80 '98-'06 / S60 '00-'09 / V70 & XC70 '00-'07 General Forum for the P2-platform S60 / V70 / XC70 / S80 models |
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Water loss puzzledViews : 426 Replies : 4Users Viewing This Thread : |
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Aug 17th, 2017, 21:38 | #1 |
Ron
Last Online: Mar 19th, 2024 15:32
Join Date: Dec 2004
Location: bracknell
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Water loss puzzled
52 ref V70 diesel auto 198k
Recently had the following problem Get the low coolant warning Check level ( hot) and wh'en removing the header tank cap get lots of hissing and bubbling and the level in the header tank rises to the max level. Two days later same scenario. temp gauge hits the middle and stays there Heater whn put on top temp setting blows warm air only nothing like the 226 degrees requested on squeezing the top hose it feels that there is no water in it, topping up the header tanks and squeezing doesn't make the level drop much, ( thinking it might be an airlock in the heater matrix) Othe point that puzzles me is that after leaving it overnight, there is still a faier amount of pressure in the system. There is no water in gthe oil nor emulsification on the filler Any ideas on 1) cause of water loss 2) why it still has an amount of pressure when cold First ti me this happened ( three years ago) One of those mobile fitters called and diagnosed a fubar head gasket. the Mrchanic at work suggested using a radwel typre thing ( forget the name) and it stopped........until now |
Aug 17th, 2017, 21:47 | #2 | |
Premier Member
Last Online: Dec 26th, 2021 13:42
Join Date: Dec 2013
Location: Crewe
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Quote:
Drain, flush water in all directions through all hoses and verify good flow in both directions. If you don't do this, don't waste your time doing the rest. Refill and see where you stand then.
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2002 S60 SE D5 Manual 209000 miles |
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Aug 17th, 2017, 23:32 | #3 |
Ron
Last Online: Mar 19th, 2024 15:32
Join Date: Dec 2004
Location: bracknell
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Thanks.
Will do that next week and let you know outcome |
Aug 18th, 2017, 07:28 | #4 | |
New Member
Last Online: Apr 25th, 2019 07:08
Join Date: Oct 2008
Location: Poole
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Water Loss on our 850
Quote:
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Thx..Hughie .. Poole, Dorset - XC90 2.4D R-Design '09 Silver. 850 Estate '85. 144 Saloon '73. 131 Saloon '69. 121 Estate '66. 121 Estate '64. |
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Aug 18th, 2017, 12:45 | #5 |
Premier Member
Last Online: Jan 15th, 2022 11:23
Join Date: Feb 2009
Location: Salisbury (ish)
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Volvo water pumps are generally bullet proof & probably will outlast any aftermarket replacement. Personally, I would want to prove the pump was at fault before changing a perfectly serviceable item. I'd recommend a UV dye kit which you can pick up readily from ebay which will allow you to trace any external leaks. If you find none, then consider having a 'sniffer' test done to check for combustion gases in the coolant which would be indicative of head gasket, head or block leak.
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