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Author Topic: water leak  (Read 922 times)

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file28

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water leak
« on: 22 December 2007, 10:50:54 »
have just had the crank sensor changed[old one completely shot]also icv removed soaked overnight and replaced, now runs like a new car except that it has developed a water leak from around the exspansion bottle area
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TheBoy

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Re: water leak
« Reply #1 on: 22 December 2007, 11:01:31 »
Quote
have just had the crank sensor changed[old one completely shot]also icv removed soaked overnight and replaced, now runs like a new car except that it has developed a water leak from around the exspansion bottle area
If its the bottle itself, they are around £30 from dealer, or get one from scrappy. If yous has coolant level sensor, ensure that replacement works if 2nd hand...
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Grumpy old man

file28

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Re: water leak
« Reply #2 on: 22 December 2007, 11:06:12 »
when working on the car at the garage would they have to remove any hosesfrom that areai.e not replaced them properly
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TheBoy

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Re: water leak
« Reply #3 on: 22 December 2007, 11:11:35 »
Quote
when working on the car at the garage would they have to remove any hosesfrom that areai.e not replaced them properly
Unlikely if all they touched was crank sensor and icv.

Can you pinpoint where it is actually leaking?
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Grumpy old man

file28

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Re: water leak
« Reply #4 on: 22 December 2007, 11:14:55 »
seems to be coming from underneath the bottle maybe  adislodged hose today is the first day i have the chance to check in daylight as i tend to work 7 days a week 12 hours a day will get the tool box out and investigate
 :y
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file28

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Re: water leak
« Reply #5 on: 22 December 2007, 12:06:51 »
just checked the hoses etc all seemed ok topped up the bottle ran the car up to normal temp all ok .there seems to be a lot of air in the water,on loosening the cap you hear the pressure releasing with a lot of air bubbling through the water any ideas
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TheBoy

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Re: water leak
« Reply #6 on: 22 December 2007, 12:12:58 »
Quote
just checked the hoses etc all seemed ok topped up the bottle ran the car up to normal temp all ok .there seems to be a lot of air in the water,on loosening the cap you hear the pressure releasing with a lot of air bubbling through the water any ideas
Is it over pressurising...
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Grumpy old man

file28

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Re: water leak
« Reply #7 on: 22 December 2007, 13:25:07 »
sounds like it could be
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TheBoy

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Re: water leak
« Reply #8 on: 22 December 2007, 13:34:51 »
Does the top hose get hard when running - thats the normal test for over pressurising.

If its overpressurising, normally due to a leak (such as failed HBV), or HG failure (rare on v6)
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Grumpy old man

file28

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Re: water leak
« Reply #9 on: 22 December 2007, 13:39:43 »
hbv heater bipass valve?
hg head gasket?
car is a 2.0 16v auto estate
no oil in water no mayo on filler cap or dipstick
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file28

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Re: water leak
« Reply #10 on: 22 December 2007, 13:40:48 »
haeter works ok with a/c on or off
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