I am really not sure what to do with this, at first I was so frustrated I was planning to just sell it as a parts car, but since the differennse in price could be amonths pay, I would like to make a reasonable effort to fix it.

When I bought the car, it had 225k on it, and the transmission is original. The previous owner ws the second owner, and said the fluid had been changed before but had no receipts. It did function fine when i bought it.

After driving it for a few months, it started to engage a little rough when taking off from a stop (especially when cold), and also whine at higher rpm until warmed up. It would also sometimes flare on upshifts when accelerating harder (merging onto the freeway most of the time). It would also occasionally shift extremely rough if you accelerate, back off then accelerate again.

After that, I drained the pan and torque converter, changed the filter and pilot bushing for the electrical plug, put the pan back on with a new gasket and filled it with 7.75 quarts of Shell ATF-134 (showed full on the and it was slightly better, but not a lot.

I believe i asked here and read a few other places that the conductor plate on a car with that mileage should really be changed, so I recently changed it, and repeated the above steps otherwise except it took 8 quarts to show full on the dip stick.. It was much improved for about 2 weeks of driving to work, then it went into limp mode when making a U-turn, so I drove it the few minutes home and parked it. When I checked the fluid on the dipstick with it cold, there was no fluid showing on it at all, and it had a P-0748 code stored. I checked for leaks and there were none, and added 3/4 quart of fluid which now shows filled to the hot full mark on the dipstick with the car cold.

I haven’t driven it again yet, but I plan to let it warm up and suction some of the fluid out if needed to get to the correct level and drive it again and see what happens, but I don't think I fixed anything so it will just continue to happen.

Does anyone have any suggestions of what may be wrong, or if this car would be able to be fixed to the point of not having this happen every couple weks for cheaper than just replacing it? I haven't spent a ton of money making this one much better than any other reasonably decent one, so if selling it is the best choice that’s fine too. I honeslty really dislike automatics, but I want to drive a diesel and VWs dont agree with me so there are not a lot of other options.