Heater not working properly

Tiny
FOXYDARLING
  • MEMBER
  • 2012 FORD EDGE
  • 3.5L
  • V6
  • 2WD
  • AUTOMATIC
  • 118,000 MILES
Turn control knob all the way to hottest, cool air blows out vents. When I turn defrost on, A/C compressor kicks on and blows ice cold air. Vehicle temperature is normal, so that should rule out thermostat issues or low coolant, correct? When switching between hot and cold or vents and defrost, I hear no noises from blend door actuator area. I don't want to buy a heater core and that not be the problem. Any ideas how to narrow things down further?
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Tuesday, September 8th, 2020 AT 8:45 AM

1 Reply

Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Good afternoon,

Do you have dual control or single control for the front?

https://www.2carpros.com/articles/how-a-car-heater-works

https://www.2carpros.com/articles/car-heater-not-working

https://www.2carpros.com/articles/replace-blend-door-motor

When the engine gets hot, feel both heater hoses going to the core. Are they both hot?

Roy
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Tuesday, September 8th, 2020 AT 11:22 AM

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