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It was frustrating to troubleshoot but it gave me a good opportunity to inspect all the wiring and learn more. I'm happy I can drive it again and glad I didn't throw parts at it.

I finally solved the no spark issue today... It's so fun working on old cars, especially ones that have changed owners a few times and worked on and maintained by people who love to tinker and "make it work." I hoped it would be something common, or obvious, that other Jeep owners would have...

I did some diagnostics today, starting with the crankshaft position sensor. I tested the voltage at the harness and it's 5 volts. The voltage pulses when I crank the engine. Then I tested the camshaft position sensor (or distributor pickup). Back probing the sensor output wire, got 5 volts...

I found a flow chart to follow for a no spark no start condition, so I'm going to follow that and update here. Last night I back probed my map sensor and got my 5 volt reference, going to check all sensors for potential issues. Maybe something is shorted out. I'm going out of town for a week so...

Hi, I've had this Jeep for about a year. Slowly been learning its quirks, fixing issues here and there, and doing some upgrades. It's a '91 with a 4.0 motor from a '94 Cherokee. 5 spd manual. This past week, I got around to swapping the entire steering column with a pre-owned unit. The reason I...