My Ex started doing this exact thing, but it only does it whent the temp outside has been over 100 degrees Farenheight. We have been above average in temp for the last couple of days here in East TN and I noticed this when I was driving when it was over 100, but not when it was in the mid 90's. Could the A/C be a little low or is it just the amount the compressor is switching to cool during the extra-hot weather?
David