Don't know the specs on the SpaceX boosters. But, once again, the satellite wasn't designed for on-orbit repair and trying to catch the satellite and attached a propulsion module to the correct location on the satellite is a tricky proposition. One that would require a specially built module and one that "probably" doesn't exist. I put probably in quotes since I don't have access to the manufacturers' advanced design centers.
Also, it would probably be cheaper to build and launch a replacement satellite.