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Discussion Starter · #1 ·
A new thermostat solved the running cool issue - thanks for the help on that one.

I also confirmed that the coolant fan temp sensor works, but it does seem to come on rather late. Running temperature now has the needle just over the "m" on the gauge (which is a smidge to the right of the centre), but when idling the needle starts to creep up and the fan only kicks in when it passes the "L".

Once it has switched on, it only stays on for 10 seconds or so before switching off - and then the temp gauge slowly drops back to "a".

I should also mention that whilst the temp gauge was moving up the scale, I could hear a noise that sounded like water running through pipes.

So, is the car behaving as to be expected or is something weird going on ?
 

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All mondys behave differently mate, I had a serious problem with mine just over 2 years ago, turned out to be faulty sensor wiring, I’ve since renewed and re routed the wiring for it as before is re draped across the EGR piping which gets bloody hot the heat made the wires brittle and eventually corroded away, the fan just wouldn’t come on at all.

Mine comes on just after the A of the NORMAL, if your worried about it then take the sensor out and clean the tip as after a while the tip forms a grey/blue corroded look to it which can stop it doing it’s job, also make sure you coolant is ok to, replace it if it look brown or generally crappy.
 

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Yep, coolant was changed when I had the cam belt and accessory drive belt replaced last week.

It was then topped up again when the thermostat was changed.

It sounds like it's fine - but on every other car I've had, the temp needle reaches the centre and never moved from there.

Thanks
 
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