Question about 2000 Ford Taurus
3.0 litre Vulcan motor, drivers side electric radiator fan seems to blow continually after motor warms up. Does not quit until I turn the motor off then it will turn off. Additionally, the temp gauge goes up half way between C and H then back to just above C. I have changed thermostat, water pump, and flushed and back flushed whole system including flushing out heater core with by-pass clamped shut. Also, heater only blowing out warm to cool air. Checked out AC/heater blender door actuator door motor and seems to be working. Gears for the blender door are tight and appears door is OK as well?
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Posted on Jan 02, 2017
The system just needs to get all the air pockets out if you switched everything like you said look around where the radiator hose meets where you put the thermostat in, there should be something on the lines of a little nipple with a 8 mm bolt on it i will have to pull up the exact setup of your Taurus but its the same general concept your car is fine you just have a big air pocket , what else you can do is while its cold right now and the car isnt running is to go take the radiator cap off the radiator and see if the antifreeze is low now that the car has cold down since you last ran it. If so feel it up top it off in the radiator and it might hurp it self and remove the air pocket all on its own... If you need any more help feel free im always on here id be glad to help more in detail once you try that and look under the hood for the bleeder ( the thing with the nipple on it) Also if you could please rate me i would greatly appreciate it.
Posted on Jan 03, 2009
You hot air comes from the water circulated through the heater core. It is like a miniture radiator with water flowing thru it constantly. So by opening the "Blend Door" you are permitting so much of this hot air to pass thru.
Seems like for some reason your heater core is plugged up. Just like a radiator can be. So water may be passing through your heater core but not passing through fully. Your heater core gets hot from water passing throught it from the engine. Then your doors open up, in proportion to how much air is permitted to pass over the heater core.
Suggest to remove the heater core and replace it. Seems the blend doors are working properly but again, if you have a non working heater core then no air can pass over the "Hot Core" for you to recieve hot air.
If you are not mechanically inclined, then go to a local parts store and you can buy a car manual, such as Chilton's or Hane's Car manuals, for your year and make to show you how to replace it. Then you can also have it for any other problems that may arise.
Posted on Jan 24, 2010
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