How much would it cost to purchase and replace the p.c.v. valve in a 2017 Qx30

Hi this is Dusty, I'm one of the auto experts on RepairPal's Car Genius team! PCV systems in modern turbocharged vehicles are more muanced, with more components than their naturally aspirated counterparts. To avoid uneccesarily replacing components, have your vehicle diagnosed by a reputable, qualified shop. The costs to repair any vehicle system, PCV included, will vary case by case. If you have any other questions or would like to help with finding a RepairPal Certified shop in your area, give us a call! 877-913-1554