4thgenharvester I had the same trouble on my 03 2366 with the side air screen. Running a harvestec chopping corn head espesially in damp or rainny conditions, and in high moisture corn. Put new brushes on helped some but still not like it should be. I have replaced the rubber seal on the outside once a year since i 've had it. If I don't replace it the air cleaner gets and radiator gets plugged real quick. Going to trade this year and going to make sure it has the evacuator on the screen with the brushes on it.