2003 Suburban 1500 5.3L Vortec.
Decided to change my PCV valve, but I heard that somewhere around my year, they went with a PCV system in the valve cover.
When I took mine out, there was a grommet in the valve cover and what looks to be a PCV valve body with a very small hole on the valve cover side of the PCV body, but there is nothing in it.
At first, I was concerned, but then I saw a video where someone had the same issue, but couldn't explain why it was like that and ended up swapping it for a conventional PCV valve.
Can anyone explain what is happening with this "dummy" valve? Is the valve cover PCV system in this model and this is just a pathway for the gasses? Not sure what to do with replacement to tune up the PCV system.
Decided to change my PCV valve, but I heard that somewhere around my year, they went with a PCV system in the valve cover.
When I took mine out, there was a grommet in the valve cover and what looks to be a PCV valve body with a very small hole on the valve cover side of the PCV body, but there is nothing in it.
At first, I was concerned, but then I saw a video where someone had the same issue, but couldn't explain why it was like that and ended up swapping it for a conventional PCV valve.
Can anyone explain what is happening with this "dummy" valve? Is the valve cover PCV system in this model and this is just a pathway for the gasses? Not sure what to do with replacement to tune up the PCV system.