ok so its been about 2 weeks since my baby has been driven. (2007 mazda 6i). i started her up a little while ago and as it idled really high for the first few minutes (2000rpm) than settled back to normal rpm, there was a loud hissing noise being emitted from the power steering pump area. maybe its the intake manifold? anywho but i am worried that there is air leaking from the powersteering pump. is that possible..what could it be?