Thanks guys, I think it was just due to water splashing up. Now that I think about it, the same thing happend when I was driving an RSX. I pulled up to the same spot, went through a fairly large puddle, then heard a loud screech when I turned in. All the pulleys seem fine to me and I dont notice any appreciable leaks (except for the valve covers, though I can't see these things being linked). I guess i'll just add it to the list of quirks.