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Author Topic: coolant loss????  (Read 4298 times)

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infinity1

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coolant loss????
« on: 04 February 2007, 21:46:44 »
evening chaps,little bit of advice please...this afternoon while taking the family out,the displays chirps up a coolant low message..upon getting home it was indeed low,so i 50/50 and filled it up again,approx 1-pint(ish).now this is all ok ,just that approx 4 weeks ago ,coolant low message was on the display ,and again i filled it up, yep you guessed it approx a pint,so in about 4/5 weeks and roughly 650 750 miles it has used 2 pints of coolant,now, the acid question is this fairly normal(cough!) or should i be starting to worry about something?no gunk in the header tank,no gunge around the oild filler cap etc,and as far as im aware no leaking hoses etc.anyone got a rough idea of what it could be?
oh yes i havent done a coolant flush yet,could that be a prob?
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JamesV6CDX

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Re: coolant loss????
« Reply #1 on: 04 February 2007, 21:51:19 »
Check the heater bypass valve at the back of the engine

reglar culprit..
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Markjay

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Re: coolant loss????
« Reply #2 on: 04 February 2007, 21:51:27 »
Check HBV at back of engine.

If no visible leak anywhere, you may have the usual oil-cooler problem...



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Markjay

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Re: coolant loss????
« Reply #3 on: 04 February 2007, 21:52:12 »
JamesV6CDX you'r fast mate...  ;D
« Last Edit: 04 February 2007, 21:52:23 by markjay »
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TheBoy

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Re: coolant loss????
« Reply #4 on: 04 February 2007, 22:02:45 »
as said, check hbv first...  ...then move on to coolant bridge....
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infinity1

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Re: coolant loss????
« Reply #5 on: 04 February 2007, 22:07:32 »
fingers crossed its the hbv....so my next question any guides to changing this please..?????
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Markjay

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Re: coolant loss????
« Reply #6 on: 05 February 2007, 00:07:30 »
I claim no credit for this picture, it has been widely used on this forum as well as on the other, the HBV is item C:





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JamesV6CDX

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Re: coolant loss????
« Reply #7 on: 05 February 2007, 03:01:38 »
Quote
JamesV6CDX you'r fast mate...  ;D

Story of my life  ;)
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infinity1

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Re: coolant loss????
« Reply #8 on: 05 February 2007, 12:00:59 »
Quote
I claim no credit for this picture, it has been widely used on this forum as well as on the other, the HBV is item C:





markjay your a gent,cheers,
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bestseany

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Re: coolant loss????
« Reply #9 on: 05 February 2007, 12:16:46 »
I have to top my coolant up every two weeks or so, although I don't have any visible leaks either. I checked my HBV when I did the rocker gaskets and that was fine.

However, I have noticed some crystals on the front of the radiator even though it's never looks damp, so i suspect it may be a slow leak from that. Worth remembering to check that too.
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Jimbob

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Re: coolant loss????
« Reply #10 on: 05 February 2007, 12:29:51 »
Must be the season for it!

Im getting through abou 1 litre every 200 or so miles
HBV was damp, so I replaced it, easy, but fiddly, the trick is to find a good way to remove the bloody clips!

I needed to do a coolant flush, least this has done it for me!

Gawd knows where its going, cant find anywhere else damp
No oil in water or vice versa.

Maybe we need a coolant loss party!
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bestseany

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Re: coolant loss????
« Reply #11 on: 05 February 2007, 12:35:59 »
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Must be the season for it!

Im getting through abou 1 litre every 200 or so miles
HBV was damp, so I replaced it, easy, but fiddly, the trick is to find a good way to remove the bloody clips!

I needed to do a coolant flush, least this has done it for me!

Gawd knows where its going, cant find anywhere else damp
No oil in water or vice versa.

Maybe we need a coolant loss party!

What's your radiator like? I took the plastic cover off the top and looked down the middle between the radiator and the air con radiator - it doesn't look damp but there's white crystals building at the side of it.
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Jimbob

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Re: coolant loss????
« Reply #12 on: 05 February 2007, 12:44:30 »
Dunno tbh, will have a look when I get a chance, time isnt on my side at the moment unfortunately.
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Essex_Andy

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Re: coolant loss????
« Reply #13 on: 05 February 2007, 21:57:29 »
'usually' if you have an external leak of coolant you can smell it.....sickly sweet smell

I sincerely hope its not an oil cooler cover erroding like I had.
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bestseany

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Re: coolant loss????
« Reply #14 on: 06 February 2007, 11:35:30 »
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'usually' if you have an external leak of coolant you can smell it.....sickly sweet smell

I sincerely hope its not an oil cooler cover erroding like I had.

I had a leak of gas that had a very sickly sweet smell a few months back, but that was the air con gas.
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