Why does 2011 Dodge Caliber suddenly stall?

Hello, stalling is due to a loss of something at the instant the stalling occurs -- such as fuel pressure, ignition spark, air intake, even electronic failure of some sort. Testing needs to be done even when things seem to be "OK" to see if something is out of line. If everything seems to be in specification, then testing must be done when the problem occurs to see what is lost at the time of failure.