auto tranns problem.. only 1st and 3rd.... very hard 1st to 3rd

[maik21]

240sx 90automatic trannsmision

.... my car dont up shift.... i put into the "d" and it run fine, but dont upshift to "2nd" ; and i have to run in 1st near to redline and depress gas and it shift to 3th, but 2nd never work.... i did a tcu diagnostic and the overdrive light told me that the trans is fine. the solenoids a and b are in 24 ohms .... i disconect the trans arnes from the motor bay and put a 0 volts into solenoid a and 10volts into solenoid b, and no changes... i think that something is stuck!!! what i do to resolve this problem?? transmedic ??

i diagnose the solenoids "a" and "b" with an ohmeter and it are fine!!

what i need to do?

[average joe]

easy solution>get a new transmission. I just happen to be swapping my auto over to 5spd in like 2 weeks. I'd be willing to let the auto go pretty cheap probably. I don't know what the shipping would be to where you are though.

[maik21]

theres no cars like the 240sx here... i think i need to swap the motor and trany to.... to repair the trany , it cost $300 us and a motor with a trany and swap it cost $1000 us .

[maik21]

more ideas?