I've noticed lately there is a whitish pinkish "crust" on all the pulleys and underside of the hood, where it looks like there is coolant leaking onto the belt and the belt is flinging it all around. I haven't noticed a significant loss of coolant in the last 7000 miles, but if i wipe it off it comes back after awhile. I wiped it off this afternoon and drove 50 miles and there was none where i wiped it off (ac on, heater off). Don't notice any on the ground either. Don't see any leaking when engine is up to temp either. Where could it be coming from? I also wonder if maybe it only happens with the heater on, i had to turn it on this morning and last and noticed there was more of it there when i looked at it after i got to school. Any help would be appreciated!! This is my first corolla so still trying to learn about it.