Thread: lost first gear and will not downshift

I have a major problem with my trans in my 2000 gtp. I drove up the street to pick up my son from a friends house and the car was fine. An hour later I left to go to the store, I put it in reverse and backed up, then put it in drive and it didn't want to take off. I had to rev it to about 2000 rpm's just to get it to move. The once it got up to about 20 mph it was pulling fine. Then I pulled over at the gas station checked the fluid and it was full but smelled a little burnt. So played around with it some to see what else it was doing and noticed it would shift from second up to overdrive fine but once its in fourth it will not downshift unless I slow down or manually shift it. Does it mean the trans is shot or is it something easily fixed? I found a low mileage trans out of a 99 gtp for cheap. Will it work? Sorry for the long post. I just wanted to give you as much info as I could. Thanks. Jason

It has second, third, and overdrive. Where are the fuses located that may have blown? I would be so relieved if it were just a fuse. Check engine light is on but has been for a while because it says that it had the wrong t-stat in it. I was going to fix that when I flushed the cooling system. Thanks billboost37 for the insight.

Thank you billboost37. It was the torque converter fuse in the underhood fuse box. Put a new fuse in and it drives like a new car again. Thank you again.