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Author Topic: Very very sudden loss of coolant  (Read 1386 times)

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toller

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Very very sudden loss of coolant
« on: 23 August 2007, 12:11:22 »
Just been brought home by the AA after my omega suddenly decided to take a really big pi$$ and dump all it's coolant all over the road.  I noticed the smell first then saw the needle sailing past 100 degrees but manged to pull over ok.

Anyway the coolant is totally empty, all the hoses in and out of the radiator are dry and the tank is empty, when I had the bonnet up i could see coolant running off the front of the oil sump and it seemd to be coming down the sides aswell although I couldn't see where it was originating from.

The hoses that I can see seem to be intact but I can't get to the ones at the back of the engine until tomorrow.  

Anyone else had a simialr thing happen and if so what did it turn out to be?
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Matchless

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Re: Very very sudden loss of coolant
« Reply #1 on: 23 August 2007, 12:30:09 »
Exactly the same last Friday.
Turned out to be the NEW heater Bypass Valve I had just fitted from Vauxhall World.  >:(
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SP_3.2

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Re: Very very sudden loss of coolant
« Reply #2 on: 23 August 2007, 12:39:48 »
Hi the same thing happen to me last year on a 3.0 it was he HBV and had to be replace after that all was fine.

Hope that is of some help  
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Bo Bo

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Re: Very very sudden loss of coolant
« Reply #3 on: 23 August 2007, 12:50:27 »
Quote
Exactly the same last Friday.
Turned out to be the NEW heater Bypass Valve I had just fitted from Vauxhall World.  >:(
Tell me about it  ::) Mine failed within three weeks & was bought from Vauxhall, didn't look like a genuine part though  :-/
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toller

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Re: Very very sudden loss of coolant
« Reply #4 on: 23 August 2007, 12:57:00 »
Forgot about the HBV, would make sense as there is a nice big red stain around that area :)  How much are they roughly and where's the best place to get them?
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Bo Bo

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Re: Very very sudden loss of coolant
« Reply #5 on: 23 August 2007, 13:10:35 »
Quote
How much are they roughly and where's the best place to get them?
Can't remember but they're less than £40. Get a genuine one from Vauxhall & make sure it has the GM markings on it.
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toller

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Re: Very very sudden loss of coolant
« Reply #6 on: 23 August 2007, 13:13:35 »
Just bought one from autovaux, i'm assured it's a genuine part but we'll see tomorrow when it comes.  £30ish including delivery.
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ians

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Re: Very very sudden loss of coolant
« Reply #7 on: 23 August 2007, 17:47:34 »
av definition of genuine can be a bit flexible.

If real GM it should come in a white box with GM hologram on the label, not a placky bag.  

GM one on trade is £30 incl vat. (its not on TC )
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JamesV6CDX

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Re: Very very sudden loss of coolant
« Reply #8 on: 23 August 2007, 20:36:50 »
Surely coolant on front of sump is unlikely to be HBV?

I would have thought the coolant transfer pipe (front) has blown out?
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toller

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Re: Very very sudden loss of coolant
« Reply #9 on: 23 August 2007, 20:45:27 »
There is a big red stain around where the HBV is located and the car was pointing down hill when it happened so the coolant could have found it's way to the front of the sump fairly easily i Suppose.

We'll see tomorrow when I can have a proper look.
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Marks DTM Calib

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Re: Very very sudden loss of coolant
« Reply #10 on: 23 August 2007, 21:23:31 »
Quote
Surely coolant on front of sump is unlikely to be HBV?

I would have thought the coolant transfer pipe (front) has blown out?

The water vents out of two holes, one straight at the bulk head.....the other straight down the valley!

So yes, its not unusual to see water around the front of the sump.
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Essex_Andy

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Re: Very very sudden loss of coolant
« Reply #11 on: 23 August 2007, 21:58:49 »
The oil cooler cover let go on my Omega...very similar symtoms to HBV
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