I am a foreign student in college here in the U.S. I was looking online for answers on how to fix my Buick. I got the car about a year ago its an 89 Buick century wagon, 3.3L v6. Overall it’s not in a bad condition but the transmission (or something) slips under moderate acceleration, especially from a stand still. I am unfamiliar with automatic transmissions and do not know what would be causing this. So here are my questions 1) What is the problem is it easy to fix? 2) Would it be easier to swap to a different motor? And what other motors would fit? 3) Is there any manual transmission that could be fitted to my car? Alex