Omega Owners Forum
Omega Help Area => Omega General Help => Topic started by: Sir Tigger KC on 12 May 2009, 19:48:38
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Hi All,
I have a water leak and its overheating at low speeds and running hot (90-95) when cruising.. :'(
Its dripping from around the radiator drain plug, but I don't think that it is the drain plug leaking.... ::)
Is there a common leak from somewhere that ends up dripping there?? and am I right in thinking that the rear rad is the AC rad?
I used the AC for first time in ages :-[, would that have caused a leak? :(
Cheers
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Just had a year of the same type of leak in the same place, check the 'temp sensors' are screwed in tight, there are two, if it's not them I had to change the rad, that sorted the problem.
The right-hand plastic pod had a hairline crack which opened in hot conditions so was difficult to see. :y
regards
richarda
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Thanks, but where are the temp sensors? :-[
and do these rads come in one unit or are they separate? ::)
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I had exactly the same thing a few weeks ago,it also turned out to be a crack in the plastic,it was near the top but slowly runnig down the side and dripping at the bottom of the rad.
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Thanks, but where are the temp sensors? :-[
and do these rads come in one unit or are they separate? ::)
There are various temp sensors in the cooling system, coolant bridge - hidden right at the back of the engine, and a couple on the rad itself.
You have a coolant radiator and infront of that, a condensor for your A/C- 2 separate systems. If your car is auto though, it has an ATF cooler in the driver's side of it. :y
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Yes its an auto......
So it seems like a new rad might be in order ::) So the rad at the back is the coolant system? Sorry bit fick!! :o
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.... So the rad at the back is the coolant system? .....
The one closest to the engine, it gets hot with the engine running! ;) :y :y
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Its getting damn hot at the mo!!! ;D ;D ;D
Any advice on where to get at rad from? Would you use a second hand one? and are they easy to fit?? ::)
Cheers!
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90-95 sounds okay for a petrol (marked) guage to me.
(I'd say mine sits 92-95 unless "warmed" to 97)
My drain plug can drip/small leak unless nipped up - thought might be a dry seal but slight turn with a screwdriver sealed it okay.
If AC used just now it is possible you've a HBV leaking.
To overheat (c.100) you are either short of water, restricted rad or a pump issue I'd have thought. How's your expansion tank level - any warnings?
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Hi John,
Yes, I got the low coolant message, and it was leaking quite alot. I put a bottle of radweld in as I needed it yesterday and that stopped the leak and the tank level was fine all day. However the temp climbed rapidly when I came off the motorway and got stuck in traffic and lights etc but came down again when I got going again.
Its started to leak abit again today, and the tank level has dropped about an inch :(
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.....
Any advice on where to get at rad from? Would you use a second hand one? and are they easy to fit?? ::)
Cheers!
I fitted a new one from Vauxhall ... around £200 on Trade Club, not sure about pattern rads. I wanted new OE as I didn't want the prospect of being on a breakdown truck with my caravan in tow!
And straight forward to fit, a bit tight getting your hands in at the top passenger side, but nothing too drastic. :y
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...... However the temp climbed rapidly when I came off the motorway and got stuck in traffic and lights etc but came down again when I got going again. ......
All 3 fans running? :-?
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I suppose that the problem with getting one from a scrappy is that a numpty might have put radweld in it..... ::)
Seen them on fleabay for around £50 tho...
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Yep, my first thought was the waterpump, but when i pulled up the temp had climbed to just before 100 :o, so i sat and let it tick over and the temp dropped back to about 90...