Well, still chasing my tail. Not sure if I should start another thread, or continue this here.
After I got the dash back in and the steering wheel back on, I replaced the starter that was giving me problems before i did the heater core.
Whoever serviced the starter before me fixed the "yellow wire" problem by silicone-ing the connecter to the bad starter 😞
So, I made a new connector and added a little extra wire (BTW it's 12g wire not 14, I couldnt find that info anywhere and the one place i found said it was 14g, but none of the 14g items I bought would fit)
Hooked up the battery, still won't start.
Swore, pulled a little hair out, got back to working on it. Wouldn't even crank.
Problem was the neutral safety switch doing its job. in the shifter gear box area, shift indicator was reading 1st gear no matter where the knob was set. Re connected the shifter cable in the plastic nozzle thing that some how came undone (I think when we took the dash out that cable was hung up and hubby yanked too hard) got that all fixed, now shifts fine and indicator is reading correctly.
Tried to start, will crank but not start, it even started for a few second initially (probaly used up the fuel in the lines?)
Fuel pump is engaging, I checked the fuel pump relay, it's working fine. Now I'm at my limit of knowledge. I don't know what to do from here. I'm worried it's an engine issue, hubby thinks it's something to do with the anti theft or ignition stuff. Im having it towed tomorrow night to a repair shop for diagnostics and fixing on Wednsday. But the stubborn side of me wants to figure it out.
It ran ok, other than the starter issue before I did the heater core.
It does have a slight overheating issue (why I started with the heater core, I'm trying to get the whole system corrected) but it only overheated to the red once, we had it towed and compression tested and everything checked out. Needed new hoses, so the previous shop did that.
I'm bummed because I got new headlights, foglights and rear glass lifters and hubby won't let me install them untill it's running, so I can return them if this is the end of our commander 😞
Already shopping for a new one, because we want a second one anyway. They are very underrated, in my opinion. They are a great vehicle.