Im a live in nanny here in canada my visa in my passport has expired already dated march 20,2017 but my working permit will be until june 21,2017 do i need to renew my passpirt visa?? Will i get in trouble because of this??

No you will not get in trouble.

Your visa is a “travel document” which lets you come to Canada. Your work permit is your status document. So as long as you stay in Canada during the validity of your work permit you do not need to renew your visa. You only need a new visa if you leave Canada and wish to return (by air/train/bus/ferry).