Hi y'all.. I just added a little freon R-12 to my A/C, as it's starting to get
hot here in Tennessee.  It just wasn't putting out the cool like last Summer.
I added just enough (about 1.5 lbs) to just about fill up the little sight
glass on the drier under the rear driver wheel well.  Problem is, it's cooling
great, but when I move the temp level knob to cooler, the 2nd stage radiator
fan comes on, and won't go off till I turn the knob all the way to almost
off..

In the morning, it starts off okay, with just the first stage fan coming on
with the clutch engagement on the compressor.  This is as I think it should
be... But once it heats up, the fan goes to second stage,  and just stays
there..... Did I add too much freon?  (the glass isn't totally clear so it
shouldn't be too full).  The fan worked just fine until this, and the A/C was
okay last year, after a major A/C overhaul.   Those of you  familiar with the
second stage fan hum and vibration know that it's not pleasant to be driving
along with that thing whirring!  Any ideas?