If you're missing spark at one spark plug wire, you're missing it at it's mate too so there's no point in wasting time looking at the others. If you were just missing spark at one spark plug, the engine would still run.
Professional mechanics are not psychic, so whoever determined the crankshaft position sensor was defective must be really good. The easiest way to know is if here's a diagnostic fault code set related to that, but it's important to understand that fault codes never say to replace parts or that they're defective. They only indicate the circuit or system that needs further diagnosis. Chrysler makes reading fault codes yourself real easy. Cycle the ignition switch from "off" to "run" three times within five seconds without cranking the engine, then watch the code numbers show up in the odometer display.
If there are no fault codes, the first step is to determine if you also have no fuel. The easiest way is to determine if the automatic shutdown relay is turning on during cranking. You'll need a test light or a digital voltmeter for that test. You listed a V-6 engine and said it has a coil pack. Coil packs were only used on the four-cylinder engines. Which engine do you really have?
Monday, December 30th, 2013 AT 12:46 PM