Any tips or suggestions on why I have no fluid squirting out? Front is good, back blade works but no juice.

 

What year is your Equinox? If it is 2010 or newer, your washer fluid reservoir is probably just low and needs to be refilled. The reservoir is designed so that the rear window runs out of fluid before the front/windshield.

 

can you hear the pump motor run? if you have fluid and can hear the pump motor running then the line came unhooked or is clogged somewhere