hi guys my name is Justen, i have a 1988 jeep comanche 4wd that doesnt have the original motor. i aint afraid to get dirty and tear it apart if i have to. the jeeps motor was swapped out in a day by the guy i bought it from it has a 2003 jeep wrangler 4 cylinder motor in it with an allison transmission, it wants to turn over but i can't get it to start at first it was the positive connectors that were loose i tighten back in and it works i had to jump the battery to get the motor to wanna turn over. i need someone with experience on what to do, i was thinking of finding another 03 wrangler and taking the motor out and just replacing the motor with that one would that be easier? any advice would help me, thank you.