I decided to tackle this project myself. Getting to the breather box can be a pain, as you have to remove your intake manifold, but that gave me an opportunity to clean out my throttle body which was absolutely caked with carbon. The Volvo kit unfortunately doesn't include the large breather pipe (Part number 9470330), so the work I did on the front portion of the system did nothing to solve my issue since it was that larger pie assembly that was clogged.
A D V E R T I S E M E N T S
I decided to tackle this project myself. Getting to the breather box can be a pain, as you have to remove your intake manifold, but that gave me an opportunity to clean out my throttle body which was absolutely caked with carbon. The Volvo kit unfortunately doesn't include the large breather pipe (Part number 9470330), so the work I did on the front portion of the system did nothing to solve my issue since it was that larger pie assembly that was clogged.
- Ollie W., Oregon, US