19997 Sable GS. I slow down and make a turn, when i accelerate after completing the turn, the transmission slips before it downshifts. Then when it does downshift it hits real hard. Would a flush and a filter take care of this?

CK TRANSMISSION FLUID

The transmission is done

Has to come out & be rebuilt or
a reman installed

Stop trying to do what you are doing!!! Sounds like the transmission is slipping when attempting to downshift, and engine is over-revving!! Check the transmission fluid level and correct if needed. If fluid level is correct and fluid smells burned, suspect transmission has internal problem.

Check this link, it is explained in details:
http://www.fixya.com/cars/t14135569-93_subaru_impreza_auto_trans_slips_33



Car Parts

Time for a rebuild

65,000 miles AVG Life of a Taurus Transaxle

Any slipping your done,didn't just start,you have
been using it that way

you have checked the fluid level right?

use the first D. this is overdrive. it gives you the best fuel economy. The second D downshifts the transmission into a lower gear. this would be used when climbing a steep hill (it keeps the transmission from hunting between gears) or descending an equally steep hill as it would help slow the car without using the brakes.

Check the fluid! Had similar problem, $0.87 in fluid fixed it.

Fill the transmission up to full with atf fluid. Check while running.