Does a 2001 Nissan Altima have a PCV valve?
Answer It doesn't have a PCV valve. Actually it does. The PCV valve for a 1993 Nissan Altima is located behind the engine below the intake. Buy a Haynes manual, the PCV is VERY tough to get too but it can be done. You can only get two bolts from the top but have to go from underneath the car to detach the hose.