1993 Nissan Altima GXE Air conditioning works great. Has worked since I bought the car 22,000 miles ago. Alternator has never failed either, and the fans are the same story. However, when I run the A/C I have a weird idle/RPM problem. When I turn ON the A/C, everything works great. Blows ice cold, no issues. Then it runs through a "cycle" with the fans spinning up, then shitting down periodically. Normal. When the fans SHUT OFF, my idle plummets. My engine will physically shake back and forth for a few seconds until it resumes normal idle. MY RPM's drop to 200-300, should be closer to 750-800 at idle. Asked a friend, he said it's my alternator. He said the fans are taking ALL the amperage while they are on, then when they shut off ALL that load goes on the alternator (102amps?) and it "overlaods" my system for a few seconds. What do you think? Is that bull, or am I looking at getting new fans? Or worse yet, and alternator?