Dealer saying PCV needs to be changed but no symptoms

Hi, this is Bo, an auto expert on RepairPal's Car Genius team! If your dealer’s saying the PCV valve needs to be replaced, but you’re not seeing major symptoms, it might be worth considering. A faulty PCV (Positive Crankcase Ventilation) valve can cause rough starts, random check engine lights, and a drop in engine performance—kind of like what you’re describing. The fact that the check engine light comes back after a reset suggests the system is detecting a persistent issue. Replacing the PCV could improve that rough idle and prevent more costly problems down the road, like oil leaks or sludge buildup. If you need any further advice or want help finding a trusted RepairPal shop in your area, please feel free to call us at 877-913-1554!