The Galaxy (8-2-7) appeared well on their way to a win after Juan Pablo Angel collated a deflected Todd Dunivant shot and blasted a volley past Toronto goalie Stefan Frei in the 92nd minute, breaking a 1-1 tie.
But Gordon, who played for the Galaxy from 2004-10, burned his former team by netting the equalizer 2 minutes later, striking a perfectly placed volley from inside the area.
Gordon's first goal came in the 68th minute for Toronto (2-5-8), and erased a 1-0 deficit.
Chris Birchall scored in the second minute for the Galaxy.
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