Hi.

Just want to share out my scenario and get some advise.

My Viva is 5 years now.
In the afternoon, when I open the air-cond, there is "hiss" sound coming out. (not "tok" tok" sound, more like air leaking sound)
If I turn off the air-cond, the "hiss" sound is gone.
I hear it inside the car but cannot hear it outside the car maybe due to the engine sound is louder compare to "hiss" sound.

The fan is not strong like it used to be and even with the air-cond turned on, it is not cold.

can roughly tell me what wrong with my car air-cond?