I have a Deluxe fresh air heater in my 49 gmc. I went all through the heater, it has a new heater core made by a local shop, a new blower motor. I don't have a ranco (original) heater valve, but I did put in a universal valve (which is in the open position)
I have a 350 engine, the heat gauge goes up to 180 when the engine is warmed up, but I am getting no heat out of the heater, not a lot of air flow, and virtually no air flow out of the defrost vents.
Do these heaters usually do a good job? We had several AD trucks when I was a kid, and none of them were overly warm, but they all had some other kind of heater in them. This one is just not making warm air. I figured with a 12v blower motor, a new core, a new radiator, and a new motor, it should be comfy. It's not.
Last edited by 50jimmy; 02/28/2012 5:26 PM.
