Fluid foaming Archives - Transmission Digest
Just Another Little Known, and even less Cared-for, Fact of the Day

During the first road test after the installation of a 41TE (A604), the vehicle seems to shift fine, then you notice on the second takeoff it starts to act a little strange, like maybe it’s low on fluid. You might also notice a slight pump whine before you make it back from the test drive.