The 2001 and 2002 are gear transmissions. I think all 4 models sport 3 cylinders but all a little different. My 2002d has a 3t80u-nap, the 2001 has a 3t82d-b, the 2010 has a 3t82b, the 2020 has a 3t82b-n. Now if you have one with a different number than that don't shoot me. I am positive about the 2002 cause I took the number off the tag. The others I got from different internet sights. Not always to be trusted.