when i checked the atf of nissan cedric car, i fond that the fluid are so dirty .so i replace it with toyota ws atf.after changing gear oil.i drive it for testing.1km i have drove the gear start problem,it did not change 1 to another.so i replace the fluid with ns2 nissan orginal but the gear is still not change.so plz tell me how to fix it

win thu, December 2011

I presume you did an ATF change to cure a fault. The chances are you have a stepper motor fault. To verify look at live data. For specialist www.fedauto.co.uk

mags, December 2011

hi,if you didn't have a problem with the gearbox before you changed the atf,then I would suggest you have a lock somewhere in the atf cooler/pipes or a fill error.did you change the filter in the sump pan.dextron111 is a good atf for your gearbox .when you fill with atf to dipstick line,select all gears a few times then check level.repeat this process several times before you test drive.you may need to flush the system to clear all pathways and lines.

tranny granny, December 2011