93 Bronco no heat please help

[jasindude1]

So i recently found out my truck has no heat, this is what I have done so far. Bought a flush kit and flushed the coolant system, i got heat for a little bit, it will get warm at idle but then when i drive the heat goes away. The heat core hoses 1 is really hot and the other one is cooler, I bought a thermostat, but wanted to see what other thought before i blindly start replacing parts. The temp gauge in the truck ready about a 1/4 way when the vehicle is fully warmed up. I got heat briefly after the coolant flush but i dont get heat anymore or very light heat but it goes away when i drive, kinda weird bc i thought it would get hotter the longer i drive. Please help I have a hunt coming up in a month and dont want to freeze

 

[miesk5]

Yo jasindude1,

The heater core may be plugged.

Following by Ford: CLIMATE CONTROL SYSTEM Condition Possible Source Action

• Insufficient, Erratic, or No Heat

• Low radiator coolant due to coolant leaks.

• CHECK radiator cap pressure. REPLACE if below minimum pressure. FILL to specified coolant level. PRESSURE TEST for engine cooling system and heating system leaks. SERVICE as required.

• Engine overheating.

• REMOVE bugs, leaves, etc. from radiator and support or A/C condenser core fins. CHECK for:
• Operation of engine fan clutch, Loose drive belt, Sticking thermostat, Incorrect ignition timing, Water pump impeller damage, Restricted cooling system
• SERVICE as required.

• Loose drive belt.

• REPLACE drive belt if cracked or worn and ADJUST drive belt tension.

• Thermostat.

• FEEL heater water hoses. If the heater water hoses are too hot to hold, the thermostat is OK. If the heater water hoses do not get too hot to hold, REPLACE the thermostat. If only one heater water hose gets hot while the other remains cool, a plugged heater water hose or heater core is indicated.

• Heater water hoses.

• CHECK condition and routing of hoses.

⊙

Core Replacement Instructions in a 94; "...from Mitchell on Demand: Drain cooling system.Disconnect heater hoses. Remove glove box for access.Remove 7 screws attaching heater access to cover to plenum.Disconnect vacuum source. Leave harness attached to cover. Remove cover. Remove heater core from plenum. To instali, reverse removal procedure. Labor time 1.1 Hours Ford part # E9TZ 18476 B list $78.79..."

Source: by bnkrtstk (SOLD, Steve B, Camo Clunker

 

[Skitter302]

miesk5 has yet again posted the correct info regarding the problem. Old clogged heater core. Happen'd to my 89 Bco before I sold it. But mine had that stop seal stuff in the coolant that caused the issue. (previous owner put the stuff in.)