Question about 2000 Ford Taurus

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Cold Ait from heater ducts

Cold air comes from heater ducts after car reaches operating temp. Coolant level and thermostat are fine. Operating temps are fine. Does these cars have a water flow valve to heater core like older models and if so where is it located?

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  • sam_810 May 11, 2010

    how to check the blending doors?

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U might want to check the blending doors that control ur ac and heater flow they tend to get stuck sometimes

Posted on Oct 25, 2008

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The heater blows air, but it is always cold on every setting. What is going on with the heater?


Check coolant level first for being low. IF level ok, possible plugged/restricted heater core. With engine at operating temperature, check hoses under hood going into heater core. They should be close to the same temperature. If one is hot and the other warm/cold, suspect a restriction in the heater core and you will require a back flush to remove the restriction. If both hoses warm/cool, suspect a thermostat issue and the engine will not reach proper operating temp to supply adequate heat.

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Check your coolant level and make sure its full, next i would look into replacing your thermostat, if your thermostat is stuck open your engine isnt able to reach operating temperature therefore heater output suffers, your coolant temp gauge should read around halfway when the engine is hot if its not look into replacing the thermostat, if your gauge is reading halfway check the cable going to your heater box when you adjust your temperature on your heater controls its possible that the cable broke or the blend door inside the heater box is stuck into the cold position allowing only cold air to come through the vents.

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2006 chevy silverado 2500hd truck heats up to operating temp while in parking lot blower works well but truck will not blow any hot air until truck is driving at at least 15 to 20 mph. fuses good think...


If I understand you correctly, your temp gauge shows correct operating temperature, your blower fan blows air that you can feel with your hand from the right floor or dash outlet, but that air doesn't feel warm until you are moving?

If so, several possibilities come to mind. One is that your coolant level is low. Even though your temp gauge reads in the right range, the coolant level could be low enough that it doesn't reach the heater core until there is enough engine RPM to create more pressure from the water pump and force what coolant is there toward the heater core. Another possibility is that your heater controls are not able to do their job. A stuck flapper in the duct or a malfunction with the temperature control system could be causing the problem, and at 15-20 MPH there is enough air coming through the outside air vents to provide some heat.

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with cold engine, remove radaitor cap and fill radiator.
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leave cap on loose.
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go here for villager/quest help.

http://autos.groups.yahoo.com/group/villagerquest/

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Hi!
Looking at your description I feel a Air lock scenario?
Have you tried a system bleed?
Park vehicle on level ground, when cold remove coolant filler cap, start engine leave to idle, turn heater to max and blower full. Wait for engine to reach operating temp, keep clear of coolant filler, listen as hopefully gurgling then a boil over will occur, top up with very warm coolant wait as it may boil over again.
Check for heat inside vehicle, if hot replace cap but keep eye on temp as air lock may have just moved out of heater matrix/core so boil up may happen again.
If the bottom hose continues to constrict and heat inside car then possible head gasket issues.
Good luck! hope I sorted it for you? if so press the Blue button please! for my FREE effort's I Thank You!
Paul 'W' U.K.

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