So, today I changed my spark plugs and attempted to do the PCV valve (that's another issue). The problem is I took out a bunch of stuff and put it all back. Now when I press the gas I get a high pitch whine. It usually starts between 2500 and 3000 RPM. Any ideas?
more than likely vacuum leak. Did you loosen the intake manifold by chance? or maybe just for to tighten a hose onto the manifold?
Turns out for some reason one of the bolts that holds on the BOV wouldn't tighten all the way. Something happened to the threads. I used a slightly shorter bolt and it works fine.