over-cooling - Alfa Romeo Forum
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My 3.0 GTV engine won't reach temperature when the aircon's on. The cooling fans stay on all the time on when the aircon's on and the engine temperature does not go higher than 50 degrees. If I turn the aircon off the temperature comes up to 90, which I think is normal. I would be grateful for any advice.
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Re: over-cooling

The only thing I can imagine is that its an electrical fault...unless you've got the heater turned up high?
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Re: over-cooling

Saw this posted here before on AO and cant remember for the life of me where....

Use the search facility at the top and see what she throws up...
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Re: over-cooling

Sounds like a faulty relay to me.
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Re: over-cooling

I've got this but discovered it the other way around. Sat in traffic with the temp crawling just over 90, and if I pop the aircon on, teh temp drops to halfway below the 90 mark. Isn't this because the aircon causes a 2nd fan to kick in? And is it really a problem? It doesn't seem to have any detrimental effect at all!
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Re: over-cooling

The engine temp can not drop to 50deg unless the thermostat is stuck open.

The AC fan runs whenever the AC rad needs cooling - which is most of the time when the weather is warm but it is also a handy way to have extra fan blowing across both rads if stuck in traffic and engine temp starts to climb a bit too high.
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