your problem is the solenoid block..it is mounted to the outside of the transmission just behind the dipstick..it may have a rubber boot around it..this is what the wiring harness plugs into....the solenoid block will cost $125+/- at your local parts store..
if the speed ometer is working..i would doubt it being the speed sensor
the pictures will only stay on here for an hour or so...so please print....i will resend them
Transmission Solenoid And Pressure Switch Assembly
you dont nreed to wait...but,the problemis ,the pictures i am sending will only stay on for a short time....i need to catch you when you and me are online at the same time..i will send again..if you are online soon..they will be there..if not,,i will keep sending untill you get them.....the problem is the program to wich i am getting the pictures
yes,the solenoid block is the assembly.
this lets the transmission shift gears
the reason i thing this is the problem is because,it is very common on these a604 transmissions....you can replace this in about an hour..it is just behind the dipstick..3 bolts hold it on..it is not internal....i don't know of any better pics than the ones i have sent you