Heat not blowing cold

[adams4993]

Thermostat working, blender door working, don't see a heater control valve on this truck. 2001 f150.

[D Roberts]

Heater core plugged up had a 98 same thing was going on. But I am far from a mechanic just shooting from the hip

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Sorry read the thread wrong thought it said heat not blowing warm not real sure why it won't blow cold

[adams4993]

Sorry. Meant heat is ONLY blowing cold. Saving heater core as last resort. Going to check everything else first but thanks for the response.

[D Roberts]

Heater cores are a pain to replace but you may be able to flush the system and heater core and she will blow hot again

[Jersey_Joe]

True. Is it vaccume? U check everything fer leaks? My 03 is like that. What a pain in a**
If that's any help. If u have vaccume lines

[adams4993]

I will check vacuum and try to flush the heater core. I'll let you know what I come up with. Thanks a lot. Ice storm in Memphis right now so have to tackle it this weekend.

[Jersey_Joe]

Yes. Cold out. Lol

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Get the Haynes guide fer ur truck. Prolly 20$. Nice to have a diagram of what ur Tryin to fix