Hello I have been having some issues on a regular basis. Usually on my way to work my jeep will turn off when Im traveling on the highway at about 70 MPH and then turn its self back on while in drive. The first time this happened I attempted to pull off to the shoulder when it started itself again so now I dont leave my lane as it always starts itself back up. I work at Autozone and have did some investigating and found that a possibility was the cap and rotor. Since I have replace the cap, rotor, wires, and plugs. The only time it came up with a check engine light was the initial time it shut down on me and that code brought up CPS and possibly that the timing chain jumped on me. I have only owned the Jeep since 2010 at 122k miles and it now has 148k. If anyone has any suggestions please let me know. I will more then likely be replacing the CPS tonight when I get home but any input would be appreciated.