Oil Around Turbo/Compressor Outlet

[TiGrayMSM]

Hello, I am new to the forum and just recently purchased a CPO 2022 Yukon XL with the 3.0L Duramax. After reading through the forums prior to purchase, I was aware of the potential for these LM2s to consume oil. When I was checking the oil after approximately 2000 miles (no movement on the dipstick), I noticed that there was oil buildup on the compressor outlet. See the attached photos. Is this something common to these motors? I did a quick search of the forum but did not see anything similar. Any input is appreciated. Thanks!

 

[StephenPT]

I’ve seen this on higher mileage 3.0s. There’s a single o-ring in that resonator pipe and if it’s not making a good seal the PVC oil vapors will squeeze by, especially at high boost (26psi).

I can’t find the OEM part number for the o-ring, but just to give you an idea of what it looks like and how it’s installed you can see it in this resonator delete upgrade.

2019-2024 GM 3.0L Duramax Turbo Resonator Delete

Turbo Resonator Delete Turbo Resonator Delete – 2020+ Chevrolet Silverado 3.0L 1500. PPE Turbo Resonator Delete replaces the restrictive factory turbo resonator. Easy bolt-on upgrade, machined billet

ppepower.com

 

[TiGrayMSM]

I’ve seen this on higher mileage 3.0s. There’s a single o-ring in that resonator pipe and if it’s not making a good seal the PVC oil vapors will squeeze by, especially at high boost (26psi).

I can’t find the OEM part number for the o-ring, but just to give you an idea of what it looks like and how it’s installed you can see it in this resonator delete upgrade.

2019-2024 GM 3.0L Duramax Turbo Resonator Delete

Turbo Resonator Delete Turbo Resonator Delete – 2020+ Chevrolet Silverado 3.0L 1500. PPE Turbo Resonator Delete replaces the restrictive factory turbo resonator. Easy bolt-on upgrade, machined billet

ppepower.com

Perfect! Thanks for sharing that link, looks like a simple fix. Good to know in case the dealership pushes back on repair via warranty.