[Stiletto]

so i turned on my a/c this morning and i can hear this clicking noise coming from the vents above the glove box.

it doesn't get louder when i rev my engine. but the repetitions increase as i up the fan speed. what could it be? i don't want to take it to the dealer and have them tell me it was something trivial. thanks.

 

[skyliner]

I've seen leaves get sucked into the cowling and rub against the fan, has to be fan related since it changes when you change the speed on the fan.