"For Gawd's sake, put a RELAY in there or you could burn the whole damn Jeep to the ground" ...this quote brought to you by people who do not understand the law.....Kirchoff's, Ohm's, or Faraday's.
Violation of KISS shall always ring false in TRUE engineering. - ME___
Had 75CJ5, 89YJ, 93YJ. Have 82CJ7 & 95YJ____Not one burnt yet due to lack of relays.
So replaced the ignition control module and it started fine several time last night. Drove it this morning for about 15 minutes and parked for about 5 minutes and it wouldn't start again. Seems like it only happens when it's hot. Any help or ideas in this
First verify you have spark. if you have good spark make sure your fuel system is running properly, I.E. when you depress the Schrader valve on the fuel rail you get a nice spray of fuel. Also consider if no spark: bad ignition module - I know you just replaced it but could be bad or the processor may be back feeding to the IM. Bad processor - a portion of the CPU may have burned out. You may have a bad wire or bad ground, when you changed the IM you may have moved a wire or ground enough to make a good connection. The ignition switch may not be sending current to the ignition system or, again, bad wire.
Correct me if I am wrong, but your Jeep still has the older style module, sits on the fender, Motorcraft Duraspark style. These had ground issues that would cause them to short out. Also, Motorcraft stopped making them, so all that is left is import stuff. Many old CJ ers are finding that the failure rate of out of the box modules is very very high. Could be you did find your problem, and then the new module burned up again. The napa around me can still test them.
It is in the fender. But I believe my problems are twofold. One is a bad wire somewhere (will be going through all wiring this weekend). Second is the throttle body gasket was bad and letting air in leaving a very lean mixture. I am able to start it every time with about a quarter throttle. The wiring is the other issue to fix to eliminate the previous owners mess.