Chevrolet Cruze 2012 P0299 underboost diagnosis
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- Опубликовано: 21 авг 2020
- Diagnosing a P0299 code for a Chevrolet Cruze 2012 Ecotec Motor. I meticulously walk through the function of the turbo and try to diagnose the symptoms of the P0299 underboost code.
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Idk why people make diag videos when they don’t know what they are doing. If you don’t know how the system works, go do research. Then make a video once you understand the problem and how to fix it. Otherwise you are just confusing/misleading people.
I just found the cause of the p0299 code that keeps popping up on my wife’s car. It’s the corrugated tube that goes from the intake manifold to the top of the turbo. There is a check valve in the end of the tube just before it connects to the turbo. The check valve gets stuck open once in a while and causes the intermittent code. I just put a new hose in. 80 dollars for the hose and 10 minutes later. No more codes.
First thing you should do is remove that heat shield and check the waste gate arm. There’s a little valve that tends to stick that keeps the waste gate from closing or sealing tight inside the turbo. If ignored that’s when these turbos crack and then need to be replaced. You can check by unbolting from block and try and move it up and down if it’s gummy or sticks that valve is the problem. Also you can remove turbo and check the seal inside. If it leaks then the fan will not turn and that gives the underboost P0299 code
Drive it with a code reader plugged in it will take some highway driving to open all the sensors 8 total. You can watch them clear with green lights one at a time. If check engine light stays off after all sensors have green light problem solved. In most cases. Engine light could come back on after a couple more miles driving. After about 5 more miles no light your good to go. Go to have inspected will now pass emissions.
pcv valve issue? the 1.4T has well-documented issues with a poorly designed PCV valve; could failure of that valve be responsible for the oil finding its way to the air intake? i've also heard that the PCV valve is responsible for the rough idle. not a mechanic here just someone with a P0299 in my 14 sonic rs who's been obsessively googling possible diagnoses lol
Go back to doing non-technical videos! You just winged it!
Did you diagnos it or just waste our time.
Use the CRUZEKIT PCV FIX I just did that and it was a sanity saver.
Oil is normal there. The PCV system is directed there under boost man.
What caused the P0299 code?
my boost gage doesn't go past 4lbs boost but im not getting any codes, at 4000rpm if i release gas pedal the gage will shoot to 6lbs for quick min.. any ideas what up with my car????
This video is incredible, thanks to this video I can know which part I have to change to my encore 2015. But here is my question for how long can I keep running my car with this code P0299?
I have a 2013 chevy cruze lt and I took it to the dealer and they fix the turbo and catalyc convertor ...after couple months engine light on for p2099 for underboost 🤧 I see drops of oil or antifreeze after i park the car
Underboost could be indicative of a failing turbo. I just went through replacing the entire turbo and pcv system. The oil feed line on the turbo especially is known to fail. Mine had long failed and everything else failed miserably afterwards. Its easy to get to and replace you need a special torx bit but its worth getting the set if you plan on working on this thing. The oil return line is also known to fail but that is a pain in the ass to get to.
2014 Chevy Cruze diesel, turbo under boost code with only 70k miles, just got told the waste gate pivot lever is the issue but they never performed a smoker test/pressure test to rule out anything else. Unsure of what to do as they quoted me a 3 thousand dollar turbo replacement...
I had underboost took off the turbo cover and put the waste gate thing back on
That's normal to see oil coming from the pcv valve, its crank case ventilation. All cars turbo or not turbo have a direct hose from a valve cover to the air intake.
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The culprit in my Chevy is the turbo because the catalytic converter is super hot on an p0299 code and the catalytic converter is brand new
The trick is to to replace the intake manifold and the valve cover at the same time to fix the pcv problem. As they work together. If you only replace one of the two,the problem will be back sooner than later . You must replace both to fix rough idle, code0299, under boost is a direct problem from the pcv when it reaches around 100,000kms. I'm at 300,000 +kms and still going