I have an 01 tundra with a 3.4. with 123k mi. I am getting massive amounts of oil in the intake so much that I have added a catch can. It fills up so fast, however, that it is undriveable. My mechanic told me that it has no compression in cylinder 1.
Has anyone heard of anything like this causing oil to pump into the intake?
Two quarts in five miles.
any ideas?

 

anyone?

 

Although, the amount of oil you describe is probably not due to a faulty PCV valve. The low compression in cyl. 1 is concerning. Did your mechanic give you the compression #'s for each cyl.?

While a different engine:
https://www.yotatech.com/forums/f116...y-help-226044/

 

There is so much oil it fills up the air box within a couple miles. I have currently rerouted the pcv hose to an oil catch jug, but it fills up so fast it is basically undriveable. What is there to post pictures of?

 

Sounds like you have some serious blow-by pushing oil out of valve cover and into the PCV. I was thinking a pic of the catch can set-up, but your description works.

 

...and a bad hole can cause that blow by?