Just put another tranny in my 95 jeep grand cherokee now it wont shift out of 3rd gear what could be the problem 4.0 engine automatic

jeep ZJ 94.
no car runs, out of gas,,,, my dream do to this , has failed, 100 times.
HHO failed, and x,z,y.
even the match book cover, showing "turn water to fuel" fails.
im pulling your leg,

running out of fuel , likes to burn up fuel pumps.
they are fuel cooled and fuel lubricated. so dont do that. or $$$$$$$
after you ran it dry, the pump can fail, or have hard time priming.
long cranking to get the full system primed.
is engine running ok?, you failed to say that important fact...so.....
if engines ok?
does car go fast in 1st gear, fact 2 missing.....so...........???
wont shift can mean , tranny slips or wont go to 2nd, 3rd gear.???
which is it? slips? so skips?
or shifts late?
or shift too early.?

id reset the tranny TCM. (brain)

one way is to pull the battery neg cable for 5 min.
wait and put it back
all TCM have learn mode. so drive and teach it how you drive.
newer cars , 1trans, fists vast number of cars so it has an
even harder learn mode (not yours)

tell more get more......????????????????

the FSM is here.
under ZJ.
http://www.jeep4x4center.com/knowledge-base/index.htm?utm_source=cj#service

You need to have the vechicle scanned for codes.I believe you are going to limp in mode on the computer.Have them check all codes,transmmission and body along with engine.

The only thing that you can do is check the trans fluid.Start car,run it through all gears and end in neutral.Handbrake on.Now check the trans fluid level.Make sure engine is warm.If needed add fluid.If this is not the problem,a tranny expert is the go.There is not a lot anyone can do with an auto trans at home.Hope this helps

Three ways to check:
first: check if the shift cable is in position, cick down cable too..
-next: check if the torque converter is connected to the engine.
- remove the oil pan from the auto trans and check if the oil filter is in place. If you look to the right front side of the tranny, you see a lid with a coil spring in it. check if the spring is ok.
- if tranny is open, check for metal pieces or clutch material in the oil pan and the filter unit. If you find more than usual, replace the transmission.

have the same problem with 1999 mazda pickup try flushing the tranny and put in a new filter replace one quart of tranny fluid with some lucas trans fix and see if this helps it any, was told the tranny will need to be rebuilt.

1st gear shift solinoid in the tranny is plugged have the solinoid replaced. cheap part. 20 dollars from dodge

no this is a warranty problem any rebuild is obligated to the mechanic for at least a year to me make him refix it ya dig

transmission?

yes

I had a shifting problem. The car would start in the wrong gear and shift at wrong times. I repaced the governor postion sensor and tranny fluid and the problem has been fixed for several years. Did you replace the tranny fluid?