Help with '96 Bronco?

[Lucky]

5.8
E. Bauer edition

Heat is out and no defrost. "Floor" currently blowing lukewarm air, other settings (including A/C) blowing cool/cold.
Coolant to fill line, so based on what I see online it's likely the heater core or blend door- hopefully not thermostat.

Maybe there's a Ford/Bronco person with the tools and experience to fix this quick?

Same thing happened to an Explorer I had, but I was definitely overcharged at the shop I used to go to. Looking to avoid that.

Thanks.

[Irving]

blackford76 can more than likely help you. Have you done anything related to the coolant system lately that could have caused you to get an air bubble in the line?

[Lucky]

Not that I know of. Truck is new to me as of about 3 weeks ago and my brother spent an hour checking everything before ok'ing the purchase. Planning to call previous owner tomorrow for his input, as he took really good care of it. I'll contact blackford76, appreciate it.

[BPTactical]

Being an E Bauer it has AC yes?
The entire heat/ac system is vacuum controlled so I would get a vacuum diagram and check all connections and that all the hoses are in their correct assignments.

[Great-Kazoo]

Being an E Bauer it has AC yes?
The entire heat/ac system is vacuum controlled so I would get a vacuum diagram and check all connections and that all the hoses are in their correct assignments.

Vacuum issue OR air in system.

[2XS]

I agree on vacuum leak or a disconnected hose vacuum hose. Sounds like maybe the heater core is plugged or a bad thermostat ! Is the truck getting up to operating temperature ? Do have an infrared thermometer to check heater hoses and radiator hoses ?

[Walker2970]

Could be the blender. a diverter in the blending box that will make it warmer / cooler as the controls are set and should be vacuum controlled or could be stuck

[ray1970]

I'll guess the blend air door is stuck in the cold position. Most likely due to a vacuum issue. Probably something disconnected or broken or burnt through somewhere in the engine compartment. Shouldn't be too hard to find.

[mb504]

If you would like to see what the lines look on thermal, let me know. I work in Englewood and could take a look at them. That at least could tell you if the core is plugged or not.

[COcz]

Blend door or motor is a super common issue with this vintage Fords. One of my explorers is stuck on full heat, but ac still cools so I never fixed it. I pulled a friend's door motor and replaced it cause it was stuck on cold in the wintertime. I would almost guarantee it is one of the two.