Question about 2004 Ford Taurus

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2004 ford taurus 3.0 DOHC

When my taurus is running at idle or low speeds it is ok. When you are driving or pressing the accelerator it starts to overheat. I was first told a thermostat so I replaced that. Then worse I was told it was a head gasket, so I pulled the heads had them checked out and put on a new gasket set (what a job). Once all done I started it and it was doing the same thing. So I pulled the thermostat to see if it would still do it, and it does. I also pulled the water pump to make sure the impeller was spinning, and it was. What else could possibly make this thing overheat. (Both fans do wo

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  • sanders627 Aug 05, 2008

    The thermostat is mechanical. I have removed the thermostat(still Out) to see if it still overheated. It still overheats with the stat out. Thanks

  • Anonymous Dec 27, 2008

    Car overheats almost immediately when driving - could this be the thermostate or something else?

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Defective radiator. I know, not much to break in there, but if it has a lot of build up it will not exchange the heat efficiently, or if you lose enough cooling fins the same thing will happen. Is your thermostat purely mechanical, because if it is, you may want to try another one (the first one you tried could have also been defective - it happens), but if it is electronically controlled, it could be a wiring or ECU problem. Is the cooling fan turning at the same speed as always or does it seem slower, and is it staying ON for long enough? Are your spark plugs the correct type, and is your fuel mixture not too lean? Is the engine temperature indicator gauge ok - is it truelly overheating or is the gauge messed up? Are you using the proper mixture of coolant/water?

Posted on Aug 05, 2008

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