Started the car this morning to go to work, let it idle while i moved the missus car out of the driveway so i can get out..
As i was walking back to my car.. had a random horrible high pitch noise.. not the same as a pulley or belt noise.. let it idle a bit more and the noise disappeared.. car ran normal most of the way to work until i was stopped at lights.. temp gauge went up 3/4.. which it normally doesn't do..
I put the air con on heat, high and vent.. and the gauge went right back down.. very odd...
Could this maybe be a premature failing water pump?
EDIT:
Also to note, i've noticed in the last few days with it being so cold lately.. even once the car is nice and warmed up the air con seems to be blowing cold for a long time when on hot.. it eventually warms up though, but longer than it normally has taken (even under the same temps)