Question about 2000 Lincoln LS
I just recently had the water pump changed and the thermostat, i also had new anti-freeze put in. So the vehicle does not over heat any more, but I can not get any heat to blow inside the vehicle. I turn on the heater and raise the temperature to 90 and all i get is cold air being blown into the car. I had the radiator checked and the heater coil they are both fine. So the only thing I can come up with ts the actual temperature control unit. There is air blowing in but not hot air only cold. Also the hoses in the engine area are hot so there should be hot air. I was told that there is some type of door which the temperature control unit operates. It will open the correct door to let in cold or hot air. Is this true? And is there anyway to fix this problem? Do i need to purchase a new temperature control unit? Or is there anyway to fix this problem? Or is there any way to diagnose this temperature control unit to see if this is the problem? Or do you know what the problem is? Thank you so much. I am in great need of help I live in NYC and it is very cold right now. Any help you can give me will be highly appreciated. Thank you Willie9433
There is a door that moves to control air temp from the heater core and AC evaporator core, it is the air temp control blend door , the door can stick and cause this or the little electric motor can fail, the electric stepper motor is much more common, I worked as a tech for a large Ford dealer for 20 years so I am sure of this diagnosis.
To cut to the quick of this, u must remove the dash assembly to replace this little motor, a 10-12 hour job for a pro, all day and into the night for a shade tree. Sorry for the bad news, but at least u know what the problem is.
Posted on Jan 15, 2009
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Posted on Jan 02, 2017
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