Do you have to pull the motor replace transmission on a Chrysler pacifica?

No, you generally do not have to remove the engine to replace the transmission in a Chrysler Pacifica. While it's a complex job requiring significant mechanical skill, the transmission can usually be accessed and replaced from underneath the vehicle. However, some variations might exist depending on the specific year and model of the Pacifica. A repair manual specific to your vehicle's year and engine would be the definitive source for determining this.