AC makes car sputter

[Pedal2theMetal]

When I stop at a red light or a stop sign with my AC on my car sputters a little bit. Does anyone know what could cause this? The AC works fine, it just makes my car sputter.

 

[RoadWarrior]

My first thought would be that the idle is set too low. Take it to a mechanic and have him adjust the idle. How long has it been since the spark plugs were replaced?

 

[MyMotor]

There's a possibility that the dizzy cap is damaged too, or the coils. A lot of little things can go wrong with the electrical system that only show when the electrics are under load.