shifts hard on 2004 Buick LeSabre

the car will run rough when it is idling and stall, also when I am driving it it shifts hard, any ideas

1 answer 2 comments
the shifting hard may be from a broken accumulator spring which is common. a trans shop can verify this for you and give you a bid.

the stalling, it may be a vacuum leak or a bad idle air control valve. you can also have the shop verify this for you.

Roy
how much does it cost?
when you find out the exact failures let me know

Roy