I'm driving one day, and as soon as I turn on the AC I hear this weird whining.. squealing noise. Then it started blowing out warm air rather than cold... turns out my fan doesn't cut on anymore. I checked the fuse, and they were ok... also checked the wire connection on both sides of the fan, and they both were connected. Can someone attempt to diagnose this problem through the net? Thanks
Are you talking about one of the two fans under the hood, or the blower motor? Use a test light or multimeter and see if its connection is getting power. If its getting power but not working, replace it because its bad.