DDCxj
NAXJA Forum User
- Location
- Natick, MA
I have a 91 4.0. About a year ago I was was getting a good amount of oil in my air filter. I replaced my pcv and ccv system, gromets on the valve cover and new elbows/valves, everything. It slowed down but never stopped and the past 6-8 months its just been getting worse. The breather tube that goes from the air box to the valve cover has a lot of oil in it. What else would be causing this? should I replace everything again?
My father replaced the lifters a few months ago and when he did that he ran a compression test and that was good. I know 4.0s are notorious for blowby but this seems excessive, any suggestions?
thanks
Dean
My father replaced the lifters a few months ago and when he did that he ran a compression test and that was good. I know 4.0s are notorious for blowby but this seems excessive, any suggestions?
thanks
Dean