Last year I replaced the recirc motor on my wife's 2012 Chrysler 200, as it was clacking badly with engine on or off when recirc was selected. A replacement part from Rockauto solved the problem. Looked at the old motor, and there were no missing or loose teeth, so I don't know how it failed. Last night my wife tells me there is a 'ghost' in the car behind the dash. I went out to the car this morning and before I even raised the hood or started it, heard a low moan and tapping from the cowl. Sure enough, I started it and turned on the fan, and every time I changed the mode selection (heat, defrost, vent), it made a faint moaning and tapping noise. So either the motor is bad, or the door in the airbox is binding and needs to be lubed. At only 54K miles. Anyone have this particular failure? Next will be the temperature blend door motor!