2010 Fusion new radiator now no heat

When it's cool top off the radiator or reservoir , you didn't stuff a rag in a port when you cleaned things up and leave it there did you ? Probably an air pocket , get your thermostats from the dealer .

Most likely an air pocket or closed thermostat. For the air pocket, try letting the car sit over night with the rad cap off and the front end elevated about a foot. Then, lower the car and check the coolant level again and see if it reads correctly. If this doesn't fix it, you will need to purge the system anyway. (This is the cheap way!) A shop will take care of it and use the right tool to purge it. If its is a stuck T-Stat, replace it but use a good brand.