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Discussion Starter #1
Hello everyone,

Really need some help here. 14 cruze 1.4l (out of warranty)

A few weeks ago my car started to have multiple problems all at once. First the idle became rough and severely lacked power at times. I had codes such as p0106, p0171, p1101, and "stability control needs service". At the same time, one of the tensioner pulleys began to squeal very loud on idle. Everything indicated that it was a bad PCV so I replaced the valve cover with an aftermarket option. During replacement, I had a small plastic piece break from the coil pack and drop under the cams. I could not remove it and lost track of it after multiple hours. (Coil pack was replaced as well)

Put everything together and ran the car. It lacked power and started to smoke heavily from the exhaust manifold and tailpipe. Engine runs super rough and almost dies at times, there was also a ticking/cracking sound from under the valve cover. We removed the coil pack and valve cover to see if the plastic peace reappeared. Cranked the engine a couple of times to move the cams and lifters and it ACTUALLY STARTED!!! The car started twice with no coil pack anywhere near it.

Also noticed an oil leak from under the manifold cover where the smoke was coming from (pic attached - RED CIRCLE, please ignore yellow)Im really not sure what is going on or what to do. Someone please advice on this.

283671
 

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Discussion Starter #3

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I am betting if you pull that turbo, you are going to find a crack right down the middle of the waste gate port, allowing your oil to pass into the exhaust flow.
 

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I am betting if you pull that turbo, you are going to find a crack right down the middle of the waste gate port, allowing your oil to pass into the exhaust flow.
Is that fixable or the entire turbo needs to be replaced ?
 

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There are also video's on Youtube that the turbo oil line drain into the oil pan has collapsed, causing oil from the turbo oil like feed to back up and start coming out the clamp.

This can also be seen if you have a PCV issue. If there's excess pressure down in the oil pan this can restrict the turbo ability to drain back into the pan.

This excess pressure could be the orange check valve in the intake missing.
 

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Discussion Starter #8
@carbon02 thanks for the info!! I replaced the entire Turbo with exhaust manifold today and it solved nothing :(. The valve cover has been replaced as well but I still hear a hissing sound from the back of the engine somewhere mid intake (probably the valve you are talking about). Also the turbo drain started leaking but we did move it around.

I'll look into your solution, I just hope it's not that little plastic piece from the coils that broke off and fell into the valves.


There are also video's on Youtube that the turbo oil line drain into the oil pan has collapsed, causing oil from the turbo oil like feed to back up and start coming out the clamp.

This can also be seen if you have a PCV issue. If there's excess pressure down in the oil pan this can restrict the turbo ability to drain back into the pan.

This excess pressure could be the orange check valve in the intake missing.
 

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Discussion Starter #9
The old intake indeed had a missing orange seal (Also was full of oil) I replaced the entire intake, turbo, and valve cover and still the same issue. A lot less smokey but rough idle with dimming lights every rough point on idle. I have the turbo oil drain line in hand but i don't think it will do anything.


There are also video's on Youtube that the turbo oil line drain into the oil pan has collapsed, causing oil from the turbo oil like feed to back up and start coming out the clamp.

This can also be seen if you have a PCV issue. If there's excess pressure down in the oil pan this can restrict the turbo ability to drain back into the pan.

This excess pressure could be the orange check valve in the intake missing.
 

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Discussion Starter #11
@Blasirl Thank you, These are great but I don't think any of them relate to my problem. I have rough idle and burning oil at one point of the processes.
 

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Well, the first time around I gave you links to a number of the causes and the second time fixes for the aftermath of those causes. Not sure anymore what you need.

I would at least brake clean the entire oily mess and try and catch the leaks from the beginning. And remember that just because you replaced the valve cover doesn't mean you fixed the cause.
 
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