Anyone know why there's engine rattle in the morning when starting in cold conditions and a fix for it? After the valves/engine warms up it goes away, but it's darn annoying and can be loud. It's been doing this for 2+years and noone can seem to fix it, but darn it if the car still runs perfect after it warms up and has never had any engine work besides standard tuneups and replacing timing belt.

I purchased the car new, and made sure it was assembled in Japan to avoid some of these issues but I guess you can't escape Engineering problems no matter where it's assembled. I've heard other owners complaining of the exact same problem.