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I already replaced the intake manifold, valve cover and pcv hose
Frozen PCV valve issue 1.4T (existing T.B.?) + blown oil...
www.cruzetalk.com
oil pump? just throwing snowballs, seems like something must be clogged up
That car drove like it was naturally aspirated and way slow for the sounds of the motor working IMO. Addressing the oil problem first is what I would do which might include the turbocharger. I've had them fail on me before while racing.
So are you saying that seems to be normal behavior for a failed turbo?
Well, I'm not there, just watching a video from my chair. What I can be sure of from here, the turbocharger wasn't working (making any boost). Now, is it because it failed or did the wastegate fail/stick open? Or with all these computer controls, is the oil problem causing the wastegate to stay open to preserve the motor?
Well I get that. I just want to hear “it’s not your transmission”. I don’t want to push my buddy to follow through with the turbo just to find out the trans is also bad… apparently this set up is super prone to turbo failure
If the transmission is suspect, he might want to get an OBDII adapter and get an app that works with his phone and look at the slip of the converter and other transmission functions just to cover all the bases.
He’s telling me that it all happened at the same time. The smoke started. Then loss of power. The car used to drive just fine before this…..
Think of it this way, that little engine by itself puts out X amount of power. With a turbo it put outs X plus 50 or more. My old Buicks, the engines made 110 horsepower or so and with a turbo they made 245. So with a bad turbo, all I had was a 110 horse motor and you had to really goose it to get all those ponies to the ground.
depends on what gear it is in or sitting in, I mean you should be able to feel it slipping if it is or if it is simply staying in say 2nd gear and just revving sky high, have you tried shifting it manually while slowly accelerating, you should be able to get it up to say 3rd or 4th gear then give it some gas and see it if just revs up or not in the same gear.
Subject car is a POS that I regretfully told him I’d help him with lol. Thanks for explaining your thoughts to me. I’m gonna continue to explore and share my findings. I haven’t spent much time on it really
Good point. My express van was hard shifting from 1-2 when my CEL would blink for the misfire. It doesn’t do it anymore since the initial problem has been fixed. I’m probably gonna just pull the turbo and check it out at this point. Give that a try
I wish you luck my friend.
Thats partially correct, it would actually make less than 110.. The tuning of the PCM would either make it run rich or lean, depending on how its reading things, which would lower the HP, plus, a blocked intake from a turbo not spinning.
I’ll keep the post updated. I haven’t made time to mess around with it lately.
My buddy had a Cruz with the same combo I think. IIRC, it had turbo failure around 60-70k miles. It would also build excessive crank case pressure and caused it to leak oil, twice. All was fixed under warranty and he traded the car at 100k after the certified preowned warranty went out.
