2000 neon knocking from a stop only

Hi all new here (1st post)

I have a 2000 neon, a knocking sound has started only when I get on the gas a bit harder than normal from a dead stop. It seems to last only a few seconds knock knock really fast and then its gone, does not sound like engine knock (rocker knock or pistant knock) more like a machenical noise. Any ideas where to start ? Front breaks were done 4months ago, new rotors / pads / and 1 caliper


UPDATE:: seems it to be worse now....now starting to lean towards broken motor mount ...just no idea how to check or where to find them. Also now strarting to hear while breaking UMMMMM odd



thanks in advance Bryan

Did you every find out what this was? My daughter is describing a simiar noise but I have not looked at her car yet.