Check this before your powertrain warranty is up!

[Cardinal]

Nothing to difficult,just tedious, You have to drain coolant that flows thru air intake assembly and remove air intake assembly(new gaskets), unplug the throttle body, I suggest you download the manual. A lot of caution !!! is expressed in torqueing the bolts during the install of air intake assembly( alumnum ). I had to do this procedure I had the same problem expressed by Bythabay (same cylinder leak). My warranty was up 108K mi. I installed a Motordyne spacer while it was apart. You can go to thier website and get the removal and install of air intake. BythaBay also has a video on the install which I recommend highly. Hope this info helps.