hello im new to AF

Hello I have a 93 Lumina 3.4 and coming home the other day it would nit shift into 3rd gear. I still have first, second and reverse but no third or forth gears.
Could this be anything cheaper than needing a new trans?
Thank You,
Greg

Also the site is great!

Welcome to the site. Did the tranny just start this all at once? Or were there things leading up to no 3rd & 4th gears?

It just started, no warning or indications. The car has always had a slow oil leak (1 quart every 2 weeks or so), but no other notable problems.

Most likely the cheapest would be to find a reputable tranny shop & let them drive it. It sounds like you may be in need of a tranny rebuild. But again I maybe wrong.