something is making a buzzing noise/ rattling in the engine. what u guys think it is? it seems like its not coming from the intake cuz when i turn my engine on and touch the intake it doesnt vibrate and still rattles...also a hose clamp popped off when i first turned on the car - big problem?

and on a side note, how can you stop the clutch from being all squeaky. when i push the clutch pedal down, there is a squeaking noise coming from somewhere in the engine bay, not within the car.

thanks.