Quote Originally Posted by bandook View Post
Just to throw something out, but maybe it's low on freon? My sienna would do this too, and it turned out it just needed charged. One side stayed cool, and other side would fluctuate. Seemed better at certain rpm's, if I remember right. But, yeah, put a can of freon in and it has been good since.
Will try it. The system does leak and I've had to recharge it before, but I don't remember it being intermittent before.