Contact names gone

today while trying to solve a repeated pop-up message I deleted my Gmail account from the iPhone mail app; then reinstalled the Gmail account based another discussions recommendation to solve the pop up problem. (This did work) After reinstalling I realized many of my text message conversations no longer were identified by name. I have reinstalled Gmail and it shows up as a linked account in my contacts but the contacts have not re-synced with their names. Does anyone know how to pull down this information that may be saved with my Gmail account?