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[PAULCDX]

Something defo wrong with mine then 

[tunnie]

Head tank sensor nothing to do with car running temp 

[PAULCDX]

Proves how much I know mark  

So would a stat change be the first place to start? 

[tunnie]

Proves how much I know mark  

So would a stat change be the first place to start? 

I would think so, assuming rad is all ok 

[henryd]

Proves how much I know mark  

So would a stat change be the first place to start? 

I would do what Tunnie said earlier,get diagnostic live readings from the ECU to see what temp reading it is seeing

[PAULCDX]

Ok, 

Anybody with a tech2 in the West Midlands. Happy to travel further afield if needed

Cheers, 

[Mr.OmegaMan]

Both our 2.2 & 3.2 have always been dead on 85..

+1   

[PAULCDX]

Mine does start off happily on 85 but will then creep up to 90 then 95 before coming back down to 90.......... Sitting in traffic will creep back up to 95 then sit there before coming back down etc.........   

[iansoutham]

I don't think my 2.0 has ever sat at 80 degrees in this summer.

The temp goes up to 92 degrees, the stat opens and the temp drops back down and then goes to approx. 90 degrees. If sat in traffic, the temp will go up to 95 degrees and then drop back down to 90 degrees.

I will admit that it has climbed about 2 degrees higher since I changed the HBV, flushed the system out and added an extra litre of antifreeze and some water wetter.

[PhilRich]

By the sound of it you don't have anything to worry about as long as the gauge doesn't head any further north than mid 90's and comes back down when the fan cuts in. My 2.2 Saloon has always read 89ish and climbs to an indicated 95 when the fan cuts in, but live data shows the actual normal running temp. to be 86deg and the fan cuts in dead on 92deg. My 2.2 Estate reads a steady 85 and the fan cuts in dead on 92 and live data confirms those temperatures as spot on, so as others have said, a live data reading will give you a definitive answer

[PAULCDX]

Cheers Ian and Phil 

Ok looking forward then I will get some live readings to show exactly what the temp is but from the sound of it then I don't have to much to worry about. Guess sitting in traffic in hot weather doesn't help 

Fans are kicking in around 92 / 95 and do bring the needle down but she will creep back up but never goes over 95. 

[PAULCDX]

Just an update on this :

Driving home in the pouring rain the the other evening with headlights on and heating on quite full, I noticed a very faint red battery light on the dash 

When I turned the heating / climate off the faint light went out, turned it on and it came back on very faintly?

Only noticed it when it was dark in the car and all things switched on all at once.....

Is this related in anyway to my temp needle issue or have I now possibly got an issue with the alternator? 

Thanks for any help, 

[PhilRich]

If the auxilliary belt tensioner is doing its job properly then it sounds like an Alternator issue
And no, it hasn't any bearing on your engine temperature, the cam belt drives the waterpump on a 2.2

[PAULCDX]

Cheers Phil,

I will keep an eye on dash and see if the light comes back On. It may be that I had everything on at once and only a short trip etc 

[Shackeng]

A good test here for such issues:

http://oldsite.omegaowners.com/forum/YaBB.pl?num=1225724099