[Tech II]

Unfortunately, 200K is high mileage for a tranny, that hasn't had regular services.....100K is the recommended for the car, but I prefer a 50K interval, with fluid(Dextron VI) and filter......

Not knowing the particular code, does not help......your coolant temp problem is not an indicator of your transmission temp,,,,,that is a separate issue....

Using a vehicle for pizza deliveries is the same as like a cab....it puts a lot of wear and tear on a vehicle....and buying it at 160K, and not knowing the vehicle history doesn't help.....

Hard to judge over the internet without seeing the vehicle, but my best guess is your tranny is on it's way out......I am not talking converter here, I am talking about the whole tranny may have to be replaced, if the fluid was bad, and it's slipping......was there a lot of clutch pack material in the pan, or any metal pieces or flakes? Also driving the vehicle low on fluid didn't help.....

You need your vehicle......but you are going to have to make a decision, on getting another one, or the cost of installing a rebuilt, or boneyard tranny...and even a boneyard tranny should have things done to it before installing in a vehicle, like new seals and valve body with new solenoids....it won't be cheap....and like I said, your job is not good for your car....

As for going up the hill, was it the tranny that caused the problem, or was it a misfire from your engine?