2004 Jeep Cherokee over heating after replace water pump &a

Being no heat, either its air bound, or your heater core is clogged. Eitherway, elimate the heater core by removing the 2 hoses, and spraying water into one of the tubes. If water comes out fast from the other tube, your heater core isnt clogged. If thats the case, hook the hoses back up, top off the coolant, and start the vehicle. Watch the temp gauge. Make sure u have the heat turned on. If it blows hot, and still over heats, then its a problem with the electric fan. If it blows cold, then its air bound.