Okay so I've had my crossfire for about 4 months and it only has 35000 on it but it is giving me a scare with some weird problems.

1) when i push the clutch in, it sometimes makes a clunking sound.
2) When i'm drivng and i come to stop it seems like it surges and drops in rpm's for a second and all the lights dim but it goes back to normal after a matter of seconds. could it be the CPS?
3) finally when i turn off the engine another clunking sound happens.


If anyone can help me find the problem with these i will forever grateful!