Hello, New to the site and just bought a 91 xj 4.0 HO auto 4x4. 200k on the motor but she just purrrrz and has plenty of power. The problem i am having is when the motor gets up to 210 degrees or operating temp it will die and you have to wait a few mins before it will start and you can travel untill it does it again. when its about to die if you mash the gas to the floor it will go again only for little though. Guy i bought it from has replaced the fuel pump and CPS. I positive of this. and he did a fuel filter as well. any suggestions on this would be great the other problem is the front axle will not engauge. the transfer case works just not 4x4. any help on these???? thanks. I have searched the forums but not found same symptom.