91 3.4 Tranny Slipping in 2nd gear i think?

[comet240]

hi
i have a 91 z34 3.4 engine the tranny was rebuilt but now i have problems in slipping when switching i guess around 40kms it cant switch is it something i can fix or does it need to be replaced? i have replaced the tranny filter but it didnt help

[savannaz34]

Originally Posted by comet240

hi
i have a 91 z34 3.4 engine the tranny was rebuilt but now i have problems in slipping when switching i guess around 40kms it cant switch is it something i can fix or does it need to be replaced? i have replaced the tranny filter but it didnt help

now im not a mechanic,but im pretty sure my tranny is electronic solenoid shift(my z34 is a 91)so im thinking if it was rebuilt and they did a good job(no offence)it could be your #2 solenoid?as for testing it not sure how.
these other guys on here can give you more info
(i have been wrong before,im not perfect)

[comet240]

ah ok and where on the tranny is the solinodes if you know? ya the tranny was a rebuilt from a GM Good Wrench so i dunno

so how can i test it does anyone know? and is there a diaganostic tool like the OBD2 but for 95 and older cars to read the sensors so i know whats all going on so i dont need to take it to a dealer or so and hook up to a diagnostic machine anyone have was of making a cable and hooking to the computer and see it on the laptop like the fuel pressure etc?

[comet240]

when making or buying a usb or serial to OBD1 connection and use a laptop with software will it tell me what solinode is not working?

also what software will work with a lumina? 3.4 i havent seen one really