I have a 2016 Durango, mileage 86xxx / Today I had an oil change and a guy doing the oil showed that my air filter was covered in oil. My friend suggested it was the PCV valve. I had a hard time finding it, it is in an inaccessible place. Can't figure out how to remove it? I tried to pull out the white plastic but so far I have not been able to do this, as I understand it, after that I need to pull off the top part and then pull out the PCV valve on it the inscription rotate. Please tell me if I'm doing it right?