PSpice crystal oscillator simulation?

You can connect an AC or DC source to the base with a 10K resistor, set it for 10 millivolts and make it a transient. You should be able to do this with either an AC or DC source, I forget how to do it off hand, You may have to adjust how long the transient last and its amplitude and even the resistor value. Once the transistor starts amplifying the transient it should start oscillating.