So this is the first major issue I have run down in this truck. I recently was getting the truck ready for winter, new thermostat, new fluid, etc. But I noticed I get a puff of hot heat and then nothing. The truck doesn't over heat and I flushed the system with the new thermostat. Is there an internal component I'm over looking, blend door etc.., or is my water pump failing and not producing the correct flow? Any help would be appreciated.
2004 Ramey 1500 slt
4.7v8
2004 Ramey 1500 slt
4.7v8