Idle speed is computer controlled and is not adjustable. If the speed is incorrect, there is a computer, sensor, or actuator failure.
The 3.0L V6 is a Mitsubishi engine, all others are Chrysler.
Green
To drain the radiator of a 1993 Chrysler New Yorker, you have to open the petcock on the radiator completely and drain the coolant into a container.
If the New Yorker has a transverse engine, also a 3.3, then yes it should fit.
R134a
It could,
5w30
It is inside the transmission pan.
10w30
No.
It is inside the fuel tank.
It is bolted on from the inside of the door.