OP, you can see if the new pump you installed is giving you problems by
removing the attachment clips and swinging it aside, then put the
machine in spin. The basket will begin to rotate, but since the pump
is not attached to the motor, it will be silent. If the sound is gone,
the pump is the problem and you should replace it.
On the other hand, if the pump you installed is not correctly seated
with all 4 feet firmly against the motor, it can make some noise. To
seat is correctly, give it a whack with your hand, or just remove it
and install it again.