Guys -this is a good one
I have a 94 wrangler with the straight six. Sometimes it starts, sometimes it doesnt. no rhyme or reason why. When it does start, it starts easily and right away on the first crank. When it doesn't start the engine will just crank and crank. One time when It did not start, I tested and found no spark on the main coil wire. I changed the coil and plugs and she fired right up. I also put in some injector cleaner in the gas. However, a few days later it did not start again and this time the battery went dead.
Pissed off and no time to fix it, I had the jeep towed to a jeep dealer. They replaced the battery but the intermittent starting problem still exists. They have had the jeep for 3 weeks trying to "catch" the problem. Today I called and they said it did not start. They think it is in the starter relay circuit and are looking to get a wiring diagram.
Any thoughts on what the problem could be?