New to forum but I am looking at a 2012 IQ and it starts and runs but has a white stream of smoke coming from the tailpipe. It has been sitting since last spring. I am seeing smoke from the engine bay also, like a hose is off the pcv is what it looks like but I cant find it. What should I look for? No rattle at start up, no milky oil, no missing coolant. 120k miles, seller bought it new. I want the car but need a clue of what it can be.