Question about 1993 Ford Taurus

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Heater blows cold

1993 ford taurus gl the heater blows cold when in the heat position car has new radiator thermostat and is full on antifreeze and also operates to normal temp but still no heat out of heater it blows cold

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If no coolant flowing through the heater core then ther is no heat. There are 2 possible root causes needed to check out: 1- THE VALVE TO CONTROL THE COOLANT FLOWING TO THE HEATER CORE IS NOT OPENING AS DESIRED. 2- THE HEATER CORE GOT CLOGGED UP AND NEED TO BE FLUSHED.

Posted on Nov 15, 2009

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What have you checked so far ?
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1- Check the coolant level. Is the reservoir showing full cold or hot level?
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1999 Ford Taurus 3.0l EFI 6cyl, Heater does not work, only blows cold air, have already flushed the radiator cooling system, and installed a new thermostat, still cold air. Anyone's help will be Greatly...


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The heater does not blow hot air just cold air all vent controls work.if running air conditioning can control temp with the hot cold control


The first thing to check is the coolant (antifreeze) level in your radiator. If this level is too low it could cause your heater not to blow hot air. Check this when the engine is cold by removing the radiator cap. Do not remove the radiator cap when the engine is hot. If you do, you run the risk of getting scalded by hot water and steam that can shoot out the top of the radiator. The radiator should be completely full. If it's not, fill it up with a 50/50 solution of antifreeze and water. Also make sure the radiator overflow tank is filled up to the full mark. This is usually about halfway up the tank.
If your coolant level is ok I suspect you may need to replace the thermostat. It may be sticking shut and not letting hot water get to your heater core, or it may be sticking open and preventing your engine from reaching its normal hot operating temperature. A thermostat is relatively inexpensive and usually easy to replace. Just make sure you follow the instructions and put it in facing the right direction. If the thermostat is ok then you may have a blockage in your heater core. Replacing a heater core can be a difficult job on some car. If this is your problem I recommend taking the car into a garage to have the repair done. I hope this helps you out.

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is there a thermostat for the heater loop the same as for the radiator loop on your car cooling system.

1 some cars have thermostats to keep the water just round the engine when the engine is cold and then they open as the engine gets warm to get the water cooled it seems that the water is not coming to the heating circuit so there maybe a thermostat valve that is stuck in the closed position and needs replacement
2 alterativly the heat control lever mechanism is stuck in the cold position and needs to be freed up or the control valve replaced.
3if the system is electrically controlled with no manual levers for heat control then a fuse may have blown or some other electical problem in the heat control mechanism.

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Bought son 98 Taurus, blasts cold a/c air and defroster air blows, but it won't blow warm air-no heater. can't see out of windshield with the morning sun.Husband flushed antifreeze and changed thermostat....


feel the two hoses going into and out of the heater core. they both should be hot. if one is cold the heater core is likely plugged. you can try flushing it out to see if you can restore flow to the heater core. if they are both hot the thermostat may be sticking open tho you should have a limited amount of heat. also confirm that the vents are operating as they should be.

robert

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It is the mixer motor located under the dash.

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