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Duramax Fifth Generation: 2011-2016 (LML) Discuss the fifth generation (2011-2016) of the 6.6L Duramax diesel engine & associated components. Engine related discussion ONLY.

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Old 06-28-2016, 07:03 AM   #1 (permalink)
scottdiesel
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Turbocharger

My 2015 Silverado 2500HD with 11,950 miles on it displayed the reduced power message and check engine light turned on while cruising on the interstate. Cruise set at 66, nothing in the bed, and not towing. I exited the highway and called OnStar. The operator said there were 3 codes, one for the engine, one for air induction and one for the transmission. The operator said it was ok to drive in reduced power to my selling dealer which was not to far from me at the time.


This was on a Saturday so nobody could take a look until Monday. I got the call Monday that the turbocharger was the problem, it was binding, and needed to be replaced under warranty. Turbo was ordered and replaced. I was called Thursday to pick up my truck. I could not pick up until Saturday, which I did. Just a couple of miles from the dealership there was a somewhat loud, whirring noise that drowned out the normal engine a turbo noise. I went back to the dealer and told the service manager. He started the truck and we could not hear the noise. He said he would have someone take a look Monday (yesterday) and drive it. I received a call Monday afternoon.


My truck was driven, and two techs heard the noise I was referring to. I was told the problem was that when the turbo was replaced the seal at the air box was not tightened and was sucked into the newly replaced turbocharger. The dealer is replacing the turbo again on their dime.


I'm concerned that some seal debris may have gotten through the turbo and into the engine. Is this a valid concern? I'm not a tech so I'm not sure. I think on oil change and new filter would not be unreasonable to ask for in case anything debris got into the engine.


Also, is there an history of these LML turbochargers having problems?


Thanks

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Old 06-28-2016, 08:03 PM   #2 (permalink)
Retired4ever
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Wow I feel your pain. I just traded a LMM 2010 with a turbo problem and all the techs and staff at the local dealer said it was VERY rare to have a turbo go bad on a stock Duramax. Best of luck and we'll hope this was a isolated event!

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Old 06-28-2016, 08:29 PM   #3 (permalink)
RHallenbeck
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If it did get anything through the Turbo it is most likely lodged in the Aircharge cooler..

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Old 06-28-2016, 08:29 PM   #4 (permalink)
DAVe3283
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I wouldn't be too concerned about something getting into the engine. If it was a rubber/plastic seal (that's the impression I got), then it probably just wound up in the turbo and that was it. Even if it made it past, the intercooler is a surprisingly effective filter for any chunks of debris large enough to damage the engine.
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Old 06-28-2016, 11:30 PM   #5 (permalink)
Retired4ever
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So a demand for a " clean-out " including the intercooler would be reasonable?
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Old 06-29-2016, 05:35 AM   #6 (permalink)
Sport45
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Quote:
Originally Posted by Retired4ever View Post
So a demand for a " clean-out " including the intercooler would be reasonable?
Would you want the same guys that messed up the original turbo change to R&R even more of the truck for probably no gain at all?

Last edited by Sport45; 06-29-2016 at 05:36 AM.
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Old 06-29-2016, 08:20 AM   #7 (permalink)
scottdiesel
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Thanks for the responses. I'm glad this isn't common, wide spread problem. I did a search before my original post and very little regarding turbo problems came up. I was pretty concerned though. The only problem I had of any seriousness with my 2005 Duramax was a seeping rear axle seal.


The dealer has been very good in addressing the problem and was very upfront with the mistake that was made. I have been doing business with this dealer for many years. They are truly a small, family run business that has always been a pleasure to deal with. Not one of those mega, 23 location, carnival barking, *hit shows that won't give you the time of day.
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