00xj-classic

Yesterday was a VERY sad and aggravating day... I was way out in the middle a know were and my jeep shuts off at 50mph..I though i ran out of gas.. after waiting 3 hours for a buddie and his dad to show up with gas i found out it was a differnt problem.. It will start but wont stay running for more than a couple seconds..I got towed to my buddies house were its sitting until i sell it..I had to get my other jeep out of storage.. I really was hoping the 93 would last thru winter so i woulndt have to drive my 00xj.. I am just dissapointed that the jeep is giving me problems.. I think it lost compression..It had less than 50psi in one cyl.. Let me know what yall think it could be.. I am selling it for 600 so if any one is interested around michigan let me know..