How can i find out if the transmisson go bad on 1998 Cadillac Catera

how can i find out the transmisson go bad the car still run if the transmisson go bad can some one answer me acually i have problem my car skip in frist gear & in reverse other gear run smooth

sounds internal in the trans. i would say yes, you have a bad trans from your description.

take it to a trans shop for a bid.

1 more answer
A visit to a transmission specialist for a test drive and inspection will be your best plan.