Is it normal for the cold start rattle on a 2AR-FE engine to return after it was repaired? TSB-0041-13 (cold start rattle on Toyota 2AR-FE) was preformed at a local Toyota dealer less than two months/2000 miles ago and the rattle is back. Dealer confirmed rattle, however they are stating that according to Toyota it is normal. Is it? What options do I have now?