Humming Yaris

[Lafiro]

From everyone who is having this noise;

Maybe it has something to do with the tranny, under strain, and low RPM's?

When is the last time anyone with this problem changed out their tranny oil?

Im on 54k miles, and still haven't changed it. I did post the question though in another thread, so I can try this and post my findings as soon as I can.

[craigq]

Originally Posted by Lafiro

From everyone who is having this noise;

Maybe it has something to do with the tranny, under strain, and low RPM's?

When is the last time anyone with this problem changed out their tranny oil?

Im on 54k miles, and still haven't changed it. I did post the question though in another thread, so I can try this and post my findings as soon as I can.

FWIW I've done about 3 or 4 small-quantity/partial transmission fluid changes (using a 2.5L Pela vacuum pump). Shift quality seems the same since new, the noise was present for a while before the last fluid change and didn't go away after swapping out the fluid. I'll try to pay attention next time it makes the noise...