Chevrolet Cruze rough idle, poor performance, multiple DTCs. Watch this before replacing anything!! 

If you replace valve cover, don't forget to use gasket sealer by the top and bottom bumps by the timing chain or it can likely lead to a leak

Yes the oil leak is because of that orange diaphragm failure. That orange diaphragm is basically the PCV valve and with it malfunctioning or gone ( where does it go I have never heard of anyone finding it ) the pressure inside the valve cover increases to a level that will “ blow out “;the gaskets on the valve cover, timing cover, cam covers and oil pan. Yes the GM solution is to replace both the valve cover and the intake manifold, but it will happen again in 25,000 to 50,000 miles or so. Of course you also need to fix the timing cover leak so do that before installing the new valve cover. Also, when removing that plastic hose and fitting from the intake ( where you looked in to see if the orange thing was there ) be careful to NOT lose the O ring and plastic retainer from inside that plastic connector as it won’t seal properly if it’s not in there ( tape th3 end until you need to reinstall it so those pieces don’t fall out ).

Thank you man, you saved me a lots of time and headache

I plugged mine with JB weld and mad e custom PCV system.

Excellent explanation of the problem with this Cruze. I also have 2014 Chevy Cruze Lt. My question is can the orange check valve inside intake manifold be changed by itself without taking all intake manifold off? Also you mentioned new intake manifold with improved orange check valve not coming off anymore, can I get part # or something where I can buy? Thanks for the video any feedback appreciated

Mine has the middle orange valve. The holes around looks like they’re or gone or maybe dirty. I cant tell

No update video

Q: how did you get the intake manifold out?

did it fit to chevy cruze ? i have orderd dorman valve cover for 2011 chevy cruze 1.4 LT and it doesn’t fit properly fit to my vehicle might be faulty part or what but its from left side bolts were mot tightened . i got same papers and luckily i had orange valve cover

Thank you 🙏 How long can you drive your car with this issue before major problems or it goes idle

You need to state what generation, Mid 2016 was a redesigned engine, car

Would this also be the case on the 1.8?

Do you know if Mustangs have one of those intake manifold parts falling off?

If I have these problems but only the p0420 DTC, is it still the same problem? Have some exhaust leaks further down the line but they were fixed and the code keeps coming back

Are the 1.8l intake have the same valve?