No Heat in Ford Ranger?

I believe your water pump blade may be eaten all away. That's what was wrong with my ranger and I've done all the flushing on the radiator, thermostat, etc. My water pump seals were all good. It didn't leak and the bearing bushing stuff was all good but the pump blades were all gone, just eaten away man. Now I've gotten a good heat and the engine runs at a lower temp too.

Hope this helps!