Sqreeching noise on Tick over when hot.

[Lewis-vxr]

hi when i drive my Corsa for a couple of miles when i stop i always leave the engine tick over for a couple of minutes to allow the fan to come on to cool the engine. but while im stationery sometimes i can hear a loud sqreeching noise which sounds like its a belt or something or maybe coming from the turbo, but after a few minutes it stops.
Has anybody got this or experienced this problem ?
can anyone shine light on what it is ?
thanks

[Craigyt86]

i get this sometimes, dont know what it is, had the aux belt replaced, aircon pump was changed, still does it and has done for over a year now!!

[Brano]

dont know exactly what mean sqreeching, but isnt that just metal which is cooling down ? something like crackle ?

[mikeh]

My first suggestion would be to have the aircon checked, its common for the pipes to split, which in turn may lead to the aircon pump running "dry".

[wild cars]

I think that's a common noise he's talking about!

The noise seems like it's coming from the back of the engine! right?

All my buddies Corsa OPC's are doing the same thing!

[bohemoth]

if its loud it probably won't be anything normal but it could be something simple like a pump. it isn't the fan is it sometimes the interior fan squeals due to snide bearings (probably the same ones they used for the rear of the car lol)

the corsa generaly has a noisy little engine imo

[randomgary]

mine doesz it also! without being rude its like a noisey bed on a sucessfull night if you know what i mean! it comes from the back of the engine towards the diff kinna area! it dosnt increase with engine speed so i dont think its clutch