whats the easiest way to burb the air out if the heater cores the highest point? i've had the same symptom recently......... and im a ru-tard.

 

drain it and start over??????

 

pull the front of the truck up onto jackstands to get the cap higher than the heater core and run it with out the cap (make sure you start when the motor's cold) turn the heat on to allow any air in the heater core to circulate out and find the highest point (now the cap with the truck nosed up)

 

thanks mang!!

 

yes make sure heat is on full blast/defrost when you start it.....

 

dont forget when it gets to full temp the state opens and the level will drop because of air in the top rad hose and you can add more till full then