because...............
install a filter
Your A/C compressor is shot. It's internal computer (or that of your car) is malfunctioning. The "jerk" is when your "A/C" kicks in...an A/C compressor takes much of your cars usable power. As it turns on and off you will get the hiss and jerk. (the hiss comes from the overworked compressor lines cooling)
We'll assume that the hiss was not there before. Could be an exhaust leak or a leak or restriction in the air induction system. Would help to know if you experience the hiss from the driver's seat or outside of the car.
Maybe the fan cooling your car off.
they sell inserts for your muffler that simulate the noise a turbo makes
put on ac in car and over heats
AC runs on the battery. If the car is off and you run the AC, then start the car, it will stall.
Only with considerable difficulty. You're probably better off to trade your car in for one with AC.
The AC is taking energy
No
The AC condenser would effect the performance of the AC system in the car.