It is probably the sound of the defroster fan.
The 1953 Lincoln was the first car that had a rear window defroster. It also was the first car to have an optional 4 way power seat.
The defroster is drawing more electrical current than the alternator can produce. It could be that the belt is slipping and the battery is margianally low so that when you turn on the defroster the alternator can't keep up and the battery isn't able to provide enough current to keep the ignition operating.
windshieldwheelwater pumpwindowwindow defroster
Turn off the defroster and see of the fans are on still. Also listen closely, do you hear the Air Conditioner on whenever the defroster is on? Cute huh? It ensures that your A/C gets turned on once in a while, to keep its seals lubricated.
or any other car, mostly the AC removes moisture On my 2008 Corolla, the AC light does not light up when the defroster is turned on. However, it DOES appear that the AC compressor is used. (my 2008 is the same as 2003 thru 2007, it is not the redesigned Corolla which an 09 in the USA.)
when the defroster is turned on, it activates the a/c compressor. the clutch may be locking up on the compressor.
The fans will probably stay on while the defroster is on because the A/C compressor is running.
Check to see if you've turned the defroster on. The AC runs in that mode to dehumidify air inside the car. Cheers
If you have the defroster in the on position the ac will do that.
It heats the windshield to melt the ice.
I believe they come on when the rear defroster is turned on
comp may cycle when you have the defroster on