2004 Ford Expedition "car makes grinding sound defrost" Questions

makes a really funny grinding sound. but only when i use the defroster or the air conditioning..is here a diverter that will do this or is it something else? sound stops when i turn the knob to off...

...Car makes Grinding noise? http://repairhelpcenter.blogspot.com/2012/01/abs-light-comes-on-and-car-makes.html ------------------ Car makes clicking noise? ...

grinding noise. Aircon now not working, and only makes loud horrible sound. Air blows out with fan on, and defrost air blows out and it always cooler than regular fan vent air. Sounds like the bearing

makes a vibrating sound. then when I try to put my defrost on it clicks and stays off. HELP PLZ is the noise coming from the inside under dash if so sounds like it could be the fan motor if from under

...Car makes clicking noise? http://howtobyme.blogspot.com/2011/11/car-makes-clicking-noise.html -------------- Car makes whining noise like driving on rough pavement? ...

...Car makes clicking noise? http://howtobyme.blogspot.com/2011/11/car-makes-clicking-noise.html -------------- Car makes whining noise like driving on rough pavement? ...

...Car makes clicking noise? http://howtobyme.blogspot.com/2011/11/car-makes-clicking-noise.html -------------- Car makes whining noise like driving on rough pavement? ...

...Car makes clicking noise? http://howtobyme.blogspot.com/2011/11/car-makes-clicking-noise.html -------------- Car makes whining noise like driving on rough pavement? ...

...makes this loud "grinding" noise when turned on. No noise when it's off .Also the control that moves the air from your face to foot, etc., stop working. only getting air thru the defrost vents at the ...

car it makes a grinding sound. can you tell me if it is the ac compressor or could it be something else It's probably your blower fan. maybe a bad bearing. Unless you are using defrost, the compressor