-94 Voyager 4-speed transmission goes to neutral while driving

I have a -94 Chrysler Voyager with 4-speed transmission, and the car
is fine except for the transmission. I can bear with the hard shifting
between gears, but lately i have run into a worse problem - the
transmission goes into neutral while driving! If I turn off ignition
after the fault, I could drive for some 100 meters or so, then it
happens again. This problem only occurs when the car has been driven
for at least 30 minutes continously. If I let the car cool down, then
it works like usual again.
I have also experienced that the the transmission won´t change to
third gear while driving - I always solve that by stopping and turning
off the ignition, and start it up again.
The first problem is a terrible one, the second is just bad. My
questions are: Is the transmission going to break soon, is there some
way to solve this problem?

It would be great help if someone could help me with this.

Fredrik - Sweden

 

Could be tranny, could be control module, could just be fluid/filter need
changing.

You do not mention the mileage (kilometers in your case) on the vehicle, but
being a 94 I will assume pretty high.
You also do not mention the last time you changed (or even checked) the
transmission fluid and filter.
In any case, if low fluid is not the cause then I would have a shop look at
it. Even if it is the fluid, a shop would be a good idea to see where the
leak is.

 

You cannot guess at these. You have to have it hooked to a DRB and acanned.
Than it can be determined what's wrong. Not until
Larry