Hi - I hear a clicking noise by the left side (as I face the engine compartment) radiator fan. the clicking occurs when the fan turns on only. Prior to this occurrance, I have never hear this noise and am concerned that it could be a sign of some bigger issue. Also, I hear 3 clicks then the engine stalled out. I restarted the engine and it ontinued to click every few minutes. Please let me know if the fan switch is faultly or if its a sign of another issue? Thank you in advance! ~Michal