Update, if you're still with me


In the past few days I've substituted in a partsyard pulse module, and a known good RCM, with no change. Some noise from relays and such, but no fire to the starter solenoid. Many thanks for tips and suggestions. And especially for help with parts!


I've mentioned the goofy temp reading of -36 degrees. I searched and got several hits. Apparently that's the default figure when the sensor bad (open) or unplugged. From the info I pasted below, it could have some bearing, but nobody mentioned a no-start failure associated. May be time to tear into the dash wiring. Any other thoughts at this point?


Thanks
Michael


PASTED INFO - Probably. Make sure you are looking at the correct sensor. This sensor is located in the lower louvre on the driver's side. Through a bit of research I believe it actually has two different types of signals being sent from the sensor. One is directed towards the dash to show you the ambient temp and the other signal is sent to the ECU to inform the ECU of changing ambient temps. If the dash sensor reads -36* there is a good chance your ECu is receiving the same. If it is NOT -36* outside this will cause poor gas mileage as the ECU is cumping more fuel to the engine to help maintain proper engine temps (in a -36* environment). Replacing the ambient sensor is a cheap fix, $30 shipped from chryslerparts.net. If your wires are visibly disconnected I would seek out a Chrysler mechanic to diagnose and propose a fix for the issue.