Be sure to check this hose everywhere if you suspect it is leaking or are hearing a hissing sound in the engine bay.īoth of the above components are covered under your powertrain warranty. Those hose also has a tendency to become brittle and crack, at which point it will also need replacing. If it doesn't do either of these, the whole thing needs to be replaced. Suck air back through the hose it should completely block airflow. To verify its functionality, blow into the hose it should blow freely. That hose has another check valve at the other end of it at the turbo inlet. In the last section, you need to remove a hose from the intake manifold. There's one final part that needs to be checked: If you still don't see it, this must be addressed. If you don't see that check valve, use q-tips and rubbing alcohol to clean that area and check again. Remove the cosmetic cover off of the valve cover:
#2012 chevy cruise facebar repair driver
The PCV regulator diaphragm has a round non-removable cap on the driver side of the valve cover. With the engine running, inspect the vent on the PCV regulator diaphragm. Your vehicle may also exhibit any or all of the following symptoms: Note: lack of check engine light does not mean everything is operating correctly! We will focus on the first two, which are the most likely failures.ĭepending on how long you've had this issue, your vehicle may throw a check engine light with any or all of the following codes (DTCs): There are three primary components to this system that frequently fail: the PCV regulator diaphragm (some people call it a check valve) on the valve cover, the check valve in the intake manifold, and the corrugated hose going from the intake manifold to the turbo. It's not a matter of if, but when, it will fail. The Cruze 1.4L Turbo engine has a terrible PCV check valve design that afflicts 100% of cars I have come across. I find myself having to explain this issue to someone almost daily, so in the interest of brevity, I'm creating a thread specifically for people to reference quickly if they have an issue.