Transaxle slip I have a 1990 Buick skylark with 83000 miles 3.3 auto. When you turn right or left from a stop or slowing down to 10-20 mph. and turning right or left the transmission acts like  the clutch is slipping and its an auto. The motor spins on acceleration then in a second or two it catches and off you go. It's fine on straight aways and around corners that you slow down to much on, smooth and fast acceleration . Any ideas?

does the temperature gauge show engine is very hot? could be a stuck thermostat, did you check for engine codes? this can be checked for free at most chain auto stores and give you insights into the problem.

Keep driving it & you will end up with a big bill
to completely rebuilt the transaxle

At first sign of a trans issue you stop using it,10,20 miles
is all it takes to ruin it

Have a trans shop road test,lift test & you go along for the ride

first option is to have the fault codes read as they will determine the area of the fault
indicates a problem crank or cam shaft position sensor or wiring

No transaxles make 100,000 miles

What your saying, including the rebuild
is common

Asian transaxles & all Van type vehicles,
are something you don't want to own

I used to own a trans shop,so I will leave
you with that

Can't fix slipping,drive a couple of days,
& your pulling the trans out again

Check for vacuum leaks on all hoses underhood. Make sure all intake componets are intact and they are tight.

Is the check engine light on? If so, get to an auto parts store, they should pull the codes for free.

Sounds almost like a bad throttle position sensor. The computer uses the TPS to help know when to shift on this car if I remember right, and if the TPS is bad, it can cause that jerking. Along with the car dying when slowing down after driving. But check everything else out first. Including electrical connections.

maybe some kind of alarm or a blinking light to make people THINK it has an alarm???

It could be. But it is more likely a plug wire.

disconnect the ttc located at the front of the transmission between the radiator, i think its a 3 or 4 connector plug and try it then

Try to clean the fuel system and inspect the fuel senser and injectors, it sounds like there is fuel stavation which can't allow the car to move at high speed.

replace ignition coil make sure by dealer the right mode is used when ordering if not ordered right you will get a difference in engine volts