No Heat Tried everything

[Firepuppy]

I have a 2002 expo i have no heat in front but i have slight heat in back i have replaced thermostat, flushed heater core and still no heat so i figured blend door is open so instead of tearing out dash i cut the heater box cause the truck is old and ready for junk yard i cut the hole and closed the blend door figuring that would give me heat but no heat it almost feels like the ac is on why wouldnt i get any heat by closing the blend door Both heater hoses are hot to the touch

 

[1955moose]

Was any coolant related work done to your suv? If your sure the blender door is full closed, and your temp control is functioning proper, its got to be a flow problem. Do you smell coolant? Is your vehicle overheating? Check to be sure you have no coolant in oil, or vice versa. Report your findings.

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[Russell Lewis]

Feel the hoses make sure warm. If only 1 side it’s a plugged core. If both sides it’s the door check vacuume lines