I've got two questions about my '99 GT.
1) When the car is running between 1500-2000 RPM (any gear), it
produces a "whirl" noise. Go under 1500, or over 2000, and it goes away.
2) Certain times, none predictable, when applying my clutch, it does
not feel smooth. However, say 5 minutes later under the same conditions,
it does feel smooth. The feeling I'm getting is like a "grainy" feeling.