i can down shift it by hand but that's it. how would you recommend i track the problem down. this is my first jeep and i don't know much about it.
If you don't have a digital multimeter, buy one. If you have to buy one you should spend about $20 for it, that should get you a MM with good ranges and an audible circuit tester feature.
Buying the FSM for your year is best. Two book set. If you use search you will find most of the test procedures, some with pictures, can be found here.
Haynes and Chiltons manuals are not worth much, they try and cover too many years and are either too generic or even wrong in some places.
Your TPS needs to be tested. Plenty info here already, use search. Also, to do a throttle range test, that is, to test the TPS response throughout its range you need an analog MM. Digital MM have buffering circuits built into them and will mask the results. Analog meters are $4 or less.
Check and adjust the throttle cable, it is your kickdown. Again, search.
There is a fuse to the TCU, be sure to check that.
Keep us updated.