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Discussion Starter · #1 ·
My '12 fired the p0299 code about 200 miles ago; car has 111,500 miles so out of warranty. I checked waste gate pivot arm and there is hardly any play so I cleared the code and it came back today.

I would like your thoughts on what else to check before I drop $500 on a new turbo. There is NO noticeable change in the power or drive ability at this time; everything sounds/feels fine.

-Checked wastegate pivot arm and barely any play.
-Checked circlip on pivot arm, it was there.
-Checked PCV system and check ball is in intake and I couldn't suck air through the corrugated hose that goes to turbo inlet which should mean its fine.
-Installed updated oil supply about a year ago.

Ideas:
Anyway to check the boost actuator using an ohm meter?

My thought is to remove the o2 Sensor and stick a camera in there to see if there are any cracks inside the turbo.

You guys have any other thoughts on what I can do to make sure it is in fact the turbo that is causing the problem? I have a Centech code reader that can show live data, but not sure what to check or look for.

Thank you!
 

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Discussion Starter · #3 ·
Thanks Mark, very helpful info.


Yes this the original/first turbo on the car. No smoke however it has felt a little down on power (especially in hot weather when timing is retarded). Will check the boost line from manifold and consider buying the boost level tool.


Anyone have thoughts on Cardone vs Dorman for a replacement turbo? Cardone is about $30 more ($416 thru rock auto parts) and leaning towards that one.
 

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Discussion Starter · #5 · (Edited)
Looks like the turbo is cracked, but the link below says the crack IS NORMAL and the cause of the P0299 is something else. If you look at the photos in the link, my crack is worse. I would hate to spend $500 on something that is not the problem. Your guys thoughts on this bulletin?
http://sandyblogs.com/techlink/?p=7695

Car still drives okay, maybe lacking a little power.

I’m leaning towards the Cardone versus Dorman ($426 vs $390).
http://www.cardone.com/Products/Product-Detail?productId=2N115&p=rock&jsn=8

Dorman from Parts Geek
https://www.partsgeek.com/thsjkfv-c...opZilla&fp=pp&utm_term=Chevrolet+Turbocharger

Pics of crack
 

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Discussion Starter · #8 ·
Thanks Xtreme, just ordered your PCV kit. Regarding the vacuum hose underneath intake manifold, is that the small hose that is attached the the larger PCV hose that runs from the intake to the Turbo?

I took off the large hose at the check valve and could blow air through it, but it "mostly" was sealed when I tried to suck air through it (i.e. from turbo to intake manifold).
 
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