This my second post in 2 days, and I said nice things about Wrinx.
Anyway, happened last night whilst accelerating hard there was a squealing from behind the glove box area. Further investigation revealed that if I open turned the heater control (from closed to opened) it will stop the squealing.
Now it's obviously to do with the cooling system but what exactly???
Well, this won't comfort you....my car has the same, its a blown head gasket, the noise comes from the air in the coolant that is pressed through the closed tappet of the heater matrix. When you turn the heater on, the noise is gone.
Are you sure your Vigourous driving was`nt just scareing the mouse that live behind your glovebox
Seriously tho it has to be a fault in the heater either a sticky flap or maybe sumat stuck in the motor or a vent .....................perhaps a small child got sucked in when you booted it up the road
Barry the Mayo might indicate a blown headgasket but in the last 20+years working on cars i`ve NEVER heard one cause a Squealing noise behind the glovebox
Check yer heater motor bearings and also if you can drop the moptor out and clear all the crap and leaves that are in there with it might be worth checking the pollen filter and vents behind it and also the flap McGuinn referred to
Btw try putting some cheese behind the dash and perhaps sound a claxon before you drive Vigourously again so the mouse can prepare Himself
You sure it was`nt just one of the Tyre`s Squealing