- Mar 14, 2007
2003 Dodge Ram pickup 1500. 4.7L V8 66000 miles. Std. cab 4wd Single climate zone. Hey guys, this is my Dads Ram pickup. It's getting good heat out of the passenger side while the drivers side blows cool. Both heater hoses are good and hot to the touch. Temp guage is in the middle of C and H and the thermostat is new. Radiator level is good. Is it possible the heater core can be slightly plugged even though both hoses are hot or, would that affect heat on both sides? I'm betting someone here as seen this problem before. Perhaps it's a mode or blend door? I don't want to just throw parts at it because changing the heater core in this truck from what I hear is a real PITA. I'd appreciate any help with this. Thank you in advance for your time.