1999 Ford Contour PCV valve Diag.

Hey guy I have a problem ok the car is a 99 ford contour SE 2.5 duratec motor ok now my problem stars out with that it makes a noise every so often on cold days only it sound like a tea kettle sound but in a loud way I been hearing the noise coming form the air filter housing so I check it I found out the duct that connect to the intake was loose so I tighten it up and it stop but when I start to reverse back to leave it started back up that kettle sound again when I start to turn my wheel all the way to the left or to the right and also when I reverse, it shuts off, now I ask a few people that I know and they tell me the a possible PCV Valve had collapse but I had check all rubber hoses no cuts or cracks I even sprayed some carb/throttle cleaner and nothing other one I have not tried is some soapy water in a spray bottle? But still can not find where is this PCV Valve so I don't know if these problem are a part of it?
So please let me know thanks and I don't know remember if the Mileage is at 132,000 or 150,000- 175,000