What's your problem? as i put break to stop gear slips and as it run in curves slip

Try driving it in each gear and change gears manually if its slipping you should be able to feel the slip in whichever gear is causing the problem. If the tranny is original with 230K on it, it would have been a good idea to adjust the bands on it when you did the oil change. Overfilling and under filling will give you the same problem because in both cases the fluid gets aerated, causing it to slip. Make sure the levels are correct for the temp of the fluid.

Needs a rebuild or replace with a refurb or go to junk yard. I would say replace the bands but it sounds like it's pretty toasted

check you MAP sensor.

Just to make sure I got this right. If you come to a stop, the car won't pull again unless you put it in park? Then, if you start into a curve, the transmission starts to slip unless you give it more gas? This could be signs of a bad torque converter, failing fluid pump (not as likely), or burnt/low transmission fluid level. Check the transmission fluid after the vehicle has been driven (warm engine), leave it running, and on a level surface. Check the level twice and take the lowest reading.

Sounds like your transmission has come to the end of its life. You can try getting the transmission flushed , and an additive I.E. No Slip added. That might cure some of the problems but obviously if its slipping the clutchs inside are worn out and transmission needs an overhaul.

The only air conditioning component I can think of which could cause the serpentine belt to break would be the compressor. If you look under the hood you can see the belt winding around several pulleys of engine parts. The air condition compressor is the part which has two hoses with metal fittings and a wire harness attached to it. When the engine is on the pulley attached to the compressor should be rotating at the same speed as the other pulleys. Keep your hands, clothing and jewelry clear of all moving engine parts. If it is moving at the correct speed it is good, if it is not moving correctly it will cause the belt to slip creating friction until the belt breaks. Once the belt breaks the engine cooling, power steering and battery charging will stop, which will quickly cause the engine to stop working. This could cause engine damage, but it will defiantly strand you with a broken vehicle. If the pulley is working and the air conditioner is working, do not worry about it, but you may want to check the belt with the engine off for cracks or damage. If the belt is slipping and the air condition is not working, the vehicle will need a new compressor, coolant, and possibly a dryer. This could set you back about three hundred dollars. If you do not want to fix the air conditioning and the belt is not slipping run the vehicle as usual if the belt is good. If you do not want to fix the air conditioning and the belt is slipping you may be able to bypass the compressor and use a smaller belt.

mine was the valve body

have you dropped the pan to see whats the bands are set at, any debris in pan bottom, whats your governor pressure, if bands are ok, but gov pressures are not relative to speed 1 psi per mph up to 95-127psi, port is on pass side of case rear top right, scan tool would be very helpful, your must have mil light on for this problem, gov dtc's, replace gov transducer as gov solniod as a pair, no exceptions, also are there any 02 sensor dtc's, shorted to voltage, this wil make pcm do stupid things to trans shift, affecting gov signals. GOOD LUCK RDJRP

linkages need adjusting or worn.transaxle loose on engine.worn shift fork.

get a can of BG TRANS FLUSH you will find at a auto part store put it in, drive it for about 20 min take it home change the fluid and filter and try that if problem still accurs after that your going to need a rebuild.