heater problem

[point_man8]

I have an 1995 F250 4x4 5.8Lit no A/C the heat blows cold to warm when I throw the heat switch it moves the linkage the heater core is to hot to tuch so i know that is working and both hoses to core are hot my blow is working fine (after replaceing both resistor and wire harnes )any sujestions I'm lost
Thanks in Advance

[ModMech]

Either the blend door is leaking/not closing fully against the cold air inlet, or the core is plugged not allowing enough air thru it.

[point_man8]

Originally Posted by ModMech

Either the blend door is leaking/not closing fully against the cold air inlet, or the core is plugged not allowing enough air thru it.

i'm getting good volum of air how do i clear it if its plugged would it be accsessable from the fan if i remove it or do i have to remove the core its self