clicking sound when i turn on the heater
 

Hi there,

I've noticed this clicking sound since the weather has turned cold and I've turned on the heater. The sound seems to be coming from the driver side engine compartment. I've heard the clicking sound since i've used the heater. I only pay attention to it when i first start it up on a cold start, but have never really noticed it when the engine is warm. Has anyone else in the cold climates experienced this kind of problem. It seems like the higher the speed of the fan the faster the clicking noise is. :(