Mechanics

MERCURY SABLE HEATER PROBLEM

2003 Mercury Sable • 58,000 miles

Heat doesn't work. Felt upper and lower heater core hoses both are hot. With a/c off temp set to 90F I press "auto" I can hear a motor for about 2sec hit "off" and I could hear what I think is a flap door closing. Have no problem switching air flow from bottom to top or both. Is is a temperture sensor? What do you think?
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Guest
November 11, 2012.




Check the actuator in tehheater box for working arrows point to actuator it controls temp in car.


Hmac300
Nov 11, 2012.


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