got a rattle coming from the auto[tt vtd].It sounds like the torque conv noise when its low on fluid.BUT this noise only comes in as it starts to get the right level of fluid in the box.Also if do the old stetho trick it sounds like its coming from inside the diff housing.can't road test the car but on stands it now shifts gears.

Any ideas? Thanks in advance.

vehicle? awd or fwd? year? mileage? any previous transmission issues? has the fluid ever been changed? any recent work on the vehicle? does the vehicle drive, any issues at all driving/shifting? torque converter bolt loose?

vechicle: 88 gl converted to ej22 and 95 vtd auto awd modded electrics to run box ,tranny history unknown came from a front cut about 80 000km.oil changed twice in 2 weeks

Originally it didn't lockup or change gears and slipped but drove in reverse and drive,but that has been put down to no speed sensor signal.i am not convinced that it is electronic related,as it is quiet with about 4 litres of fluid and as you add to bring the level up half way between low and full the noise comes in whether the tcu is plugged in or not.Put it in gear it is still there but not as noticable.