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<blockquote data-quote="PoManNox" data-source="post: 28038" data-attributes="member: 8300">Oil carry-over seems to be normal for the 2.0 and 1.5.&nbsp;&nbsp; Much of the PCV system is routed to the turbo compressor inlet, so crank case vapors are forced through the turbo, through the charge air cooler / intercooler and into the throttle body.&nbsp; &nbsp; A dealer is probably going to tell you it's normal and charge you $200+ for a throttle body cleaning.&nbsp;&nbsp; A throttle re-learn needs to be done after a cleaning, so the bulk of the price is probably in the scan tool required to do that.The bulk of the oil and water from the PCV system wind up pooling in the CAC/intercooler because it has nowhere else to go.&nbsp;&nbsp; On my 2021 Equinox 1.5T, I did a little experiment by drilling a tiny hole in the plastic end cap on the outlet side of the CAC.&nbsp; Right at the bottom, at the lowest spot.&nbsp;&nbsp; Small amounts of oil are always coming out of it when the vehicle is under way.&nbsp;&nbsp; Not enough that it drips on the ground, but enough that I have to wipe down the underside of the bumper cover on the driver's side from time to time.You have to be careful doing this, as too large a hole (air leak) will cause underboost codes, etc.&nbsp;&nbsp; The tiny hole I drilled could easily be plugged should I need to.</blockquote>

[QUOTE="PoManNox, post: 28038, member: 8300"] Oil carry-over seems to be normal for the 2.0 and 1.5. Much of the PCV system is routed to the turbo compressor inlet, so crank case vapors are forced through the turbo, through the charge air cooler / intercooler and into the throttle body. A dealer is probably going to tell you it's normal and charge you $200+ for a throttle body cleaning. A throttle re-learn needs to be done after a cleaning, so the bulk of the price is probably in the scan tool required to do that. The bulk of the oil and water from the PCV system wind up pooling in the CAC/intercooler because it has nowhere else to go. On my 2021 Equinox 1.5T, I did a little experiment by drilling a tiny hole in the plastic end cap on the outlet side of the CAC. Right at the bottom, at the lowest spot. Small amounts of oil are always coming out of it when the vehicle is under way. Not enough that it drips on the ground, but enough that I have to wipe down the underside of the bumper cover on the driver's side from time to time. You have to be careful doing this, as too large a hole (air leak) will cause underboost codes, etc. The tiny hole I drilled could easily be plugged should I need to. [/QUOTE]

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