When my car is running in neutral(never listened to it in gear) I can hear this rattlying or maybe like a tap, tap, tap noise coming from underneath the car, but when I step on the clutch the noise goes away. The noise is near the transmission or where the transmission meets the engine, hard to tell. But my clutch seems to be catching just fine. Anyone know what this might be?

 

Mine has similar sounds. Check this thread out: Link

 

Yeah, I believe this is common in our cars. Mine does the same thing. It is especially noticable when I'm in neutral in a drive-thru restaurant waiting for my food. Best place listen for noises in my opinion...

 

hey I had the same problem and went away when I changed the bearing 4 the input shaft....might want to check your tranny mount too...

 

I had a brand new input shaft with bearings installed last year, but I've still got the noises.