For you TTRS guys in the northern climates: Does your car make a funky sound when cold over 2,000 RPM? Mine is pretty consistent. When the car is cold or semi-cold, and I start to rev it over 2k, a strange rattling/vibrating/hissing/grinding sound eminates from the engine bay. At first, I thought it was maybe a blow off valve preventing boost when it's so cold. But it just sounds awful, so I don't think that's it. After the car warms up for a few minutes, it's fine. So I just short-shift at 2k until it warms up. The car runs like a champ otherwise. No CEL, etc. It could be a cold heat shield that needs to warm up? I don't know.
The car exhibits no other problems, so I'll wait until my first inspection to have it looked at. Just curious if anyone else hears something similar from theirs. I need a friend to help out while I try to pinpoint the problem.
- Jeremy -