I suggest you do a transmission flush first... this usually solve the
problem of clunking... if you are not too late. You drain the tranny 3
times... and drive a bit in between... and at the third drain, change the
If you don't want to do this yourself, then go to the lube shop who can do
the power flush on your tranny.
The main culprit is dirty automatic tranny fluid.and clogging filter.