Nothing has changed on the car, daily commute of 20 miles or less each day. The check engine light is now on... Any ideas before I mess around with it on wednesday?
Check the pipe that connects from the upper intake plenum to the PCV valve on the passenger side valve cover.Its not the gas cap. Listening to the engine it sounds like either there is air getting sucked in or let out somewhere. Kinda like the sound of a deflating balloon. I could just be paranoid because of the check engine light, but is that a normal sound?? I dont recall hearing it before.