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!

 


Leave your comments

Post comment as a guest

0 / 300 Character restriction
Your text should be in between 10-300 characters
    • No comments found

    Latest Articles

    2001 PONTIAC GRAND AM 2.4L ...

    I OWN A 2001 PONTIAC GRAND AM 2.4 LITER 4CYL. AUTOMATIC. IT HAS 177,000 MILES RIGHT NOW I HAVE NO SERVICE LIGHTS ON BUT WHEN I START THE CAR STILL NO ...

    2003 GMC ENVOY A/C only ...

    I just bought a 2003 GMC ENVOY SLT w/ the 4.2L 6 cylinder.  I am having trouble w/ the A/C it will blow nice and cold on the drivers side but the ...

    2001 Jeep Grand Cherokee ...

    Basically my 2001 Jeep Grand Cherokee(4.0 liter) starts up fine and runs, but at times it will cut off on me and start right back up and run ...

    Log In Or Register
    ? The Benefits

    How Things Work

    Evaporative Emission System Operation and Components

    The Evaporative Emission (EVAP) control system limits the fuel vapors from escaping into the atmosphere. The EVAP transfers the fuel vapors from the sealed fuel tank to an activated carbon (charcoal) storage device (EVAP canister). The EVAP canister stores the vapors until the engine is able to use the extra fuel vapor. When the engine is able to use the extra fuel vapor,

    Read more...

    Common Engine Codes

    Cam Crank Correlation Code P0014 P0016

    P0016 - P0014. The engine control module (ECM) uses the crankshaft position (CKP) sensor and the camshaft position (CMP) sensor pulses to monitor the correlation between the crankshaft and camshaft position.

    Read more...