I have an 04 6mt Coupe, and ever since i've moved my G to cali i'm having like a ratting sound coming from the transmission, it kinda sounds like the shift **** is rattling and the tighter i hold it it does quite down some i've tried tighting the shift **** with no avail, and the ratling sound seems to come and go its not a constant thing. any ideas wha the problem may be?

 

i just bought an 07 with the same problem.. dealer i bought it from said something bout a bushing in there goin bad.. but the dealer i bought it from was an idiot..

 

Is this at idle or high RPM?