I didnt read all of the posts so if I am repeating anyone I appologize. I had a 98 Dodge that I spoke about in here before with a V8 in (not sure if you have V6) but if you do you described my problem almost identically. On dodges the have a 2 piece intake. The bottom of the intake has a belly pan, which has a gasket, which when blown allows for a tremendous amount of oil to enter your airbox, soaking your filter in oil. This was one of many problems I had.

My Jeep