atfdmike wrote:Welcome to the Planet!
I don't think too many people here will speculate on your trans problem. You really need to do the fluid level check........the right way is flat level surface, engine running, wheels chocked, trans just starting to warm up, remove the overflow plug (No. 1 in pic) and if no fluid runs out, add trans fluid till it does. Use the right fluid as well. Be careful though...since it is a running vehicle and exhaust is HOT> Since you are down there, take a look at the fluid that is in it now to see if it is burnt or smells bad. Use a small hose or tube to get a little out if none comes out when you remove the plug. See how the fluid looks that is in there now before adding new fluid.
IF it is low, then adding trans fluid is logical and may correct the problem, however, if it does not, after that many miles, you are probably staring a trans rebuild or repair in the face. Not the end of the world but not what any of us automatic owners like to have to do.
There are many knowledgeable people here on the Planet, so keep asking questions, and you should get helpful advice. Use the search function too to learn more.
HTH One guys opinion.