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1979 Jeep CJ5 Ignition related

Tiny
BOUDREAUX-T-LAFEITE
  • MEMBER
  • 1979 JEEP CJ5
  • V8
  • 4WD
  • MANUAL
  • 78,000 MILES
Only happened twice. When the engine was cold. About 2 miles into my early moring trip to work. It looses all fire or ignition. Just dies liken you turnn the key off. I pull over and stop. Turn the ignition off. Turn ignition back on cranks right up. No further problem for rest of trip. Could it be a solid state modulator like the gm trucks had of that era? They only gave me problems when hot tho. Thanks for any assistance. Deciated jeep owner Cajunator
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Thursday, March 19th, 2009 AT 11:47 AM

1 Reply

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Next time it dies out -do below immediately to determine if its fuel or spark problem

Disconnect a sparkplug wire or 2 and ground it to the engine -have helper crank engine over-do you have a snapping blue spark? If so-you have a fuel related problem, check the fuel pressure to rule out the fuel filter/fuel pump/pressure regulator and listen to the injector/s are they pulsing or hook up a noid light. No snapping blue spark continue to troubleshoot the ignition system-power input to the coil/coil packs, distributor pick-up coil, ignition control module, cam and crank sensors- Note: If it doesn't apply disregard it
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Thursday, March 19th, 2009 AT 3:55 PM

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