Originally posted by FMXhellraiser
I have a working PCV with good vaccume and have a filter on the other side...
9 times out of 10 that is a sign of a venting problem. Ask me how I know You could have a defective PCV. Just because they "rattle" when you shake them doesn't mean they work. If it's internal, what do you think it is? How many miles are on the engine?