Temperature control very touchy / blower motor noisy
'04 Bonneville, SE 3.8L.
Recently changed the heater/fan control panel with another - easier to change the entire panel with a used one than to change the individual lamps in it - the temperature control seems to be very touchy with the AC. The last 'notch' CCW results in a large temperature change. Is this normal? Didn't notice it prior to changing but it could have been the same. Is some kind of a recalibration necessary when the entire control panel is changed?
The blower motor is quite noisy again, changed out twice with aftermarket units. Has anyone had any good fortune with any aftermarket blower fan? I am believing I'll have to get an OEM to correct this problem. The noise is a low pitched rumble, sounds like bearings (or lack thereof). Seems the aftermarkets are only good for 25k miles or so. The car hs 182k on it and still runs strong.