Your puke bottle is making rad oily, dirt and dust stick to the rad this causes the overheat. To see if yours is dirty, shine a flashlight in between the rad and intercooler or look at the back side of the rad behind the shroud. If you see dirty fuzz on there, you need to remove and clean the rad (engine degreaser and pressure washer - be careful), reinstall, and get a new thermosts. If you have never done this before, you NEED TO CLEAN IT. I had the same problem when pulling, my 2002 had a filthy rad. This will most likely fix your overheating issues. It cured mine!

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