Rez9805

Thanks a bunch everybody, changed my heater core and it is working much better, install went really good followed directions i found on here.Ps. my wife thanks you all aswell, she is finally warm.

Tried that already, back flushed it, ran CLR through it, flushed it with pressured air. I can flow coolant through it no problem, that's why I don't think it's pluged. I appreciate the help though, I'll take any ideas right about now

It's cold out know, like -40ish cold. Needless to say I have very little cab heat. Coolant temp is at 190 winter front is on truck, both lines on my heater core are hot, fan is pushing lots of air out the vents, deff, or floor heat, I can change the heater control and make the heater colder. Even when my Espar is on I still do not have hot air in the cab. If my heater core was not working properly would I still be able to pass fluid through it?If I can change the heat controls from hot to cold, my blending door should be working?If I have good flow of air out my vents, deff, and floor heat my a/c and heater core should not be plugged?If my heater core is returning hot coolant back to the motor and the fan is blowing why don't I have heat?any help would be greatly appreciated.thanks