Hello, when running the AC, my RPMs go up a few hundred and drop as if I were feathering the gas. If the AC is driven off a belt, why doesn't it just stay at a consistent level (i.e. a slightly higher RMP). My AC works fine, it's just as this gets annoying when standing in traffic.
Oh, I forgot to mention, the engine is an 2200 from an 02 with a 4 speed auto.