My 95 f 150 4th won't blow hot air out of the vents. Heater core gets hot and actuator door is hood blower motor is good. Please help

 

How about a little help from you?
What does 4th mean?
Please explain, heater core gets hot, how was this determined?
When you say vents, does this mean only the vent setting or other functions also like defroster ,floor etc ?
Not knowing where you reside, could the intake areas outside just under the windshield be clogged with ice or snow?

 

95 ford f 150 replaced actuator door . flushed system,replaced thermostat. Both heater core hoses get really hot. Box around hearer core gets so hot you cant touch it but vents will only blow warm air on any setting.

 

There is a "Blend door" that most likely is stuck in the position where it is not directing all incoming air to go over the heater core.