Jerking when driving at a constant speed. on 1998 Chevrolet Cavalier

My car jerks when I'm driving at a constant speed at 40 mph or higher. The engine codes says I have a Transmission Component Slipping, but I wanna know how much that will be to fix and what it may or may not be, I'm very limited on money and no mechanic can help me until I pay for a 50 dollar diagnostic scan. Thank you for those of you who may answer this question.

Asked by for the 1998 Chevrolet Cavalier
2 answers
To do any estimate you will need a proper diagnostic at a qualified trans shop including a scan. Sorry but to answer the question of cost you have to bite the bullet and pay.
replace the crank sensor