I'd probably have a whole other car to drive by now if I had room for a 3rd car. Anyway, I just got my car back home, and... I'm finding it hard to believe the transmission is toast in my car. It upshifts and downshifts like it has for years, pulls solidly in every gear, and generally doesn't do anything abnormal. Also does "POSSIBLE INTERNAL LEAK AND TRANNY DRIVEN WITH NO FLUID" (what the tech wrote on the work order) sound like what the service manager was telling me over the phone yesterday? Because he never said anything like "Oh hey, your transmission was dry, by the way". He specifically told me there were metal pieces in the fluid when they drained it! He also told me that it wasn't the hydraulic pump, but the technician noted that it does need a hydraulic pump.Junkyard transmissions around here are $125-$150 if you pull it. Another alternative is to buy outright a whole wrecked Dart from a place like Copart.com or directly from an insurance adjuster. I have seen some really low mile Darts on Copart sell for fairly low prices. With a whole wrecked Dart, you might recoup some of your money parting it out or have spare parts for yours for the near future. I have been that route when there were two teenage drivers in my home. Still driving one of those Neons.
So suffice to say that I'm not quite ready to admit defeat. I'm going to do a deeper dive with AlfaOBD and see if the TCM has any data to suggest malfunctioning, which the service manager suggested was the case yesterday. I know for sure that as of Monday night, the only error code on the TCM was P1CC0, and it went away on its own after a couple of start cycles. There's also an ECU mismatch code on the BCM (probably because the CTM failed to respond during the last proxy alignment, because, ya know, it failed) and if you access the ABS module it will also generally report an error, but it appears to be caused by interfacing with it and it goes away quickly on its own. I may also try replacing the hydraulic pump on my own, since I'm pretty sure it's easy to access (if you can post or have already posted the procedure it would be much appreciated, as always). Oh, and does your service manual perchance tell you how one might even check the fluid level in a C635 DDCT without draining it? It's not like it has a dipstick, after all.