240z automatic / shifting issues

[Darko]

Hello, 

I have 240z with 3 speed automatic transmission  and I cannot get it into the second gear, it skips the second gear and when it reaches speed for the third gear engages the third gear !

I decided to buy the overhaul kit and replaced all clutches and everything but still the same problem persists !

Maybe the problem could be with shift solenoid, there is one electrical solenoid and next to it is the vacuum one. 

If I get vacuum off it it loses the third gear and there is no electricity on the electrical solenoid when I measure it ! Should there be 12 volts on it when I start the engine 

Has anybody had issues with the second gear not engaging ?

I am from Bosnia and there are no parts or any of these vehicles 

[Patcon]

I know very little about the 3 speeds but I would definitely looking at the solenoids.  Isn't there an FSM for the 3 speed somewhere?

[Darko]

Sorry, what is FSM  ?

[Darko]

Just now, Darko said:

Sorry, what is FSM  ?

do you mean manual ?

[Mark Maras]

 FSM = Factory Service Manual

[Patcon]

Try this...

67088157-240Z-Automatic-Transmission-Manual[1].pdf

Can someone move this to the technical knowledge base for me?

[Zed Head]

If you "Submit a File" here it will be available.  Pick a proper place for it, submit it, and it will upload..

https://www.classiczcars.com/files/

[siteunseen]

@djwarner

[Darko]

3 hours ago, Patcon said:

I know very little about the 3 speeds but I would definitely looking at the solenoids.  Isn't there an FSM for the 3 speed somewhere?

Thank you for the  FSM !

If there is anyone who experienced the same issue , please chime in as any practical advice is welcome !

[zeeboost]

I've never opened up one of the 240z autos to be able to chime in with anything useful, but I have a 3 speed auto transmission you can have if you need any other parts or for testing purposes. I live in central texas, not sure where you're at though.

[Darko]

42 minutes ago, zeeboost said:

I've never opened up one of the 240z autos to be able to chime in with anything useful, but I have a 3 speed auto transmission you can have if you need any other parts or for testing purposes. I live in central texas, not sure where you're at though.

Thank you so much ! 

It is very kind of you ! I sent you pm

 

[djwarner]

A bad or disconnected vacuum modulator will disrupt proper shifting. Remember a vacuum line has two ends as well as the hollow tube. I would first verify the vacuum hose, then replace the modulator before tearing into the AT again.

There is no internal electronics in the AT. The only wiring is a switch for the starter enable and for the backup lights.