I have a chance to buy a motor 2.4L out of a PT cruiser, Will this bolt up in My 2003 Jeep Liberty? It has a blown 2.4L in it now.

 

"Bolting in" is only one of the problems. You need to make sure the computer systems are the same. Around 2004, Chrysler changed the computer control system. Engines and computers from the different systems are not "plug and play".