Water Pump Failure Symptoms - no heat

[cwilkie]

Question guys. I changed radiators since I though it was the reason my truck was loosing antifreeze and warmer than expected. Well the new radiator is in as well as a new 180F thermostat. I have no heat. I had heat before I changed the radiator. I made sure to flush the radiator with water since I thought it was full of air. I bled the system properly. When the engine reaches operating temperature I am able to squeeze close both the upper radiator hose, lower radiator hose and even the elbow hose that connects the hose to the intake. Both heater core hoses are cold. I had heat for a few seconds when I removed the heater core return hose while the truck was running and then put it back on the radiator.

Let me know your suggestions because I am pretty confused.