Plymouth Voyager transmission Problem Please Help!!

[bethanyam]

I have a 1998 Plymouth voyager. 3.3L engine. with a 4 speed transmission.
I have NEVER had any trouble with the transmission.
Saturday - Kept going into "limp mode" about 1 mile from home
Immediatly changed fluid, gasket, screen, ect. (used atf not mercon or whatever it's call) Hubby drove about 5 miles No problems.
Sunday - I drove 15 miles and went into limp mode again. This time the speedometer was flopping all around. Would go to 100 then to 30 then to 0 and back to 100.
I took the van home and parked it.
Wednesday - We put in a new output speed sensor. the only difference is now the speedometer does NOT work at all.
Thursday - put in a new input speed sensor. NO change.
I'm going to carefully and slowly drive to parts store to have it scanned today. The local garage wants $60.00 just to scan it. I just don't have the funds to go there right now and I don't really have the money to keep playing a guessing game either. According to the readout I get today does anyone have any ideas on what could possibly cause this? There is no hesitation, jerking, ect when going into park, reverse, or drive it just does not change out of second gear when you speed up. Other than replacing or rebuilding the transmission the only other things I can think of that might cause this is the transmission control solenoid or the transmission control module. One more question. DOes the computer have to be reset after adding the sensors to "pick" them up? THANK YOU TO ANY AND ALL ANSWERS.
Bethany

[crazy don]

u know i have a van its a 1993 voyager and had to rebuild the transmission then the other day i was driving it and the cruise control stop working and the trans seemed like it was acting up took it into the shop come find out it was head lights there was a short and the guy said it was back feeding which makes sense if there a short and the trans is all electirc so that can explain why my van was acting funny

[bethanyam]

Hmmmm that's interesting. I have had my van for about 3 years. Never had any trouble with it other than you know your standard maintence, tires, brakes, oil changes, ect. But my horn and cruise control have never worked since I got it. I never used either much on my older van so never really tried to find out why they didn't work on this one. Over the course of the last week or so we've changed the input and output sensors, changed the fluid, filter, and gasket, and installed a new transmission control module. Nothing has worked. It's just crazy. I'm about ready to junk it. Ugh.