4 Speed automatic, bad change

[zzzzed]

today i was driving my z31 and the auto decided to start playing up. I wont change up in gears till it hits around 4000rpm and the kick down is rather radical. the overdrive wont work either. I have checked the vacuum line and it still seams to be attached.

Does any one have any clues to what might be the problem?     

 

[Scoota G]

It sound like a vacuum issue but maybe take off the Modulator and clean. There's a Small Grub Screw in the modulator on the pipe where the vacuum plugs in on the earlier 240/260 Transmissions that effect when the changes happen. Simple item with a diagphragm that may be busted.

[Scoota G]

WoW, see all the guy who know about Auto's chime in Lol.

[zzzzed]

today the problem seems to haved fixed its self. however i am sure it will come back so i think it is time to start gathering the parts to convert it to manual

[DatPilot]

I have a Z32 5 speed sitting here (attached to a VG30det from a Cima/Laurel/Leopard), should bolt straight on. Shipping from canberra to SA will be a killer though.

 

Im looking to be rid of it before I get temptd to put it in my R30 skyline....

[zzzzed]

I will keep that in mind. At the momnt i am earning $200 a week sickness benefits because some clown knocked me off my motorbike.

I hope to go back to work in june. I will contact you if i cant find anything closer. I am hoping to find a cheep z31 complete car with the manual in it so i have every thing all at once. then i can just swap it all over and be done with it

   

[zzzzed]

i think the z32 shifter comes up in a different spot also

[RB30X]

Vacuum modulator may be leaking. Is your engine blowing blue smoke. Sometimes when they're really bad thay let trans fluid go up the vacuum tube into the inlet manifold.