car will start,but will not idle .

What is your question?

started car the backed out of driveway then put it into drive,car shudders like its running out of gas , i did get back into driveway . I did hear a hissing sound and found a vacuum leak going from the pcv hose.would this cause such a problem ? also put on new fuel filter last year . I know i need new hose , but would like some more info . Its been a great car and would like to keep her running . I am old school when it comes to cars but would like to fix myself if possible . Thanks