2003 Oldsmobile Silhouette Q&A

2003 Oldsmobile Silhouette Question: what causes tranny to hit hard when you take off at a light,

engine reeves up and then tranny seems to engage. no codes -
Answer 1
poss low fluid level -
Comment 1
full of oil, first thing I checked -
Answer 2
seek to diagnose at your tranny shop -
Answer 3
How about your motor mounts? -