I do not have any heat in my Ford Taurus. It seems like it is stuck in the a/c mode. I have replaced the thermostat, but that did not work. I do not have any noise in the switching of air to heat when i turn the knob.

I'm thinking that it may be the heater knob that shows red to blue- A/C to heater.

 

Answer:It sounds like you may have a bad blend door motor. This blend door motor is a electric motor located behind the radio, in the dash, that controls the temperature of the hot and cold air flow. They are known to go bad and get stuck in one position or the other- so no sound when switching. The part is about $90 and is not very hard to replace on your own. If you have no heat, open the hood and check both heater hoses going into the fire wall to the heater core are HOT. If they are then you know hot water is getting to the heater core and you should be able to get heat out the vents. The only thing in your way is the blend door motor, or the door itself is stuck. If it is a broken door, this is a much bigger job- as the heater case will need to be removed.


2001 Ford Taurus
Question: my ac is working, my fan is working but will not blow out the front vents.

 

Answer:There is most likely a problem with the mode actuator or mode door inside the heater case under the dash. This controls the direction of flow for the air to which ever position you choose, either the floor, vent, or defrost position. When the air will not come out a selected mode, something is stopping the mode door from moving. This would either be the actuator itself, which controls the door, or the door itself which may be broken. There could also be something wrong with the control head, or if the system is vacuum controlled, there can be a vacuum source issue. Definitely lots to check, good luck!

 


    • No comments yet.

    Latest Articles

    Buick 2004 Ranier Won't Go ...

    I have a 2004 Buick Rainier am needing help on what's wrong. It starts but won't go forward or in ...

    94 ford ranger wont start ...

    I have a 94 Ford Ranger. 3.0 I just changed the head gaskets and now it won't start. It has fuel ...

    Ford Taurus Many Problems

    I have had the fuel pump, alternator, and the physio plug for the crank shaft positioning sensor ...

    Nissan Altima Warning Lights ...

    I have a 2005 Nissan Altima 3.5 SL. The car was running fine yesterday. This morning, my sister ...

    1999 Dodge Neon Steering Hard

    Extremely hard to turn steering wheel p/s fluid full no visible leaks or damage to the ...

    Log In Or Register
    ? The Benefits

    How Things Work

    Traction Control Light- What Does It Mean

    When wheel slip is noted while the brake is not applied, the ABS Computer-(EBCM) will enter traction control mode.

    First, the EBCM requests the PCM to reduce the amount of torque to the drive wheels via the requested torque signal circuit. The PCM reduces torque to the drive wheels by retarding spark timing and turning off fuel injectors. The PCM reports the amount torque delivered to the drive wheels via the delivered torque signal circuit.

    Read more...

    Common Engine Codes

    Knock Sensor Codes P0325 and P0327

    The powertrain control module (PCM) contains integrated knock sensor (KS) diagnostic circuitry. The KS produces an AC voltage at all engine speeds and loads. The PCM then adjusts spark timing based on the amplitude and frequency of the KS signal.

    Read more...