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My 2000 ford focus zx3 has been overheating. I replaced the relays , the fan diode, and the thermostat. The last thing I can think of is the temp control sensor. But when I go to the parts store they give me 2 different items one I know goes on the head one the fire wall side behind the alternator. It has 2 wires on a pigtail with a plug on it the other is like it but no pigtail just the plug. I'm needing to know which one controls the fans as they don't come on until the car is nearly in the red. And if it is the one without the pigtail where is it located. Thanks

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Change fan relay make sure that when you changed it was the right relay because wrong relay can cause severe lag in operation that fan should be coming on when gauge hits around 3 quarters not the red.ok check the radiator cap seal making sure it is not loosing pressure.i would start by doing a radiator flush go by the deep flush instructions not the 15 minute flush on back of bottle in this case.also check battery for corrosion a corroded battery can cause electrical failures hard starting and lose of current to hardware.

Posted on Apr 27, 2017

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Posted on Apr 26, 2017

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The coolant temp sensor has at least 2 wires may be more
the sensor with no wires is not a sensor but a sender unit for the temp gauge and there is 1 wire from the harness that clips on that tab
before you spend money on what may not be faulty
have a compression test done to check head gasket and cracks

Posted on Apr 26, 2017

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SOURCE: 1992 Cadillac Coupe Deville blower fan runs all the time

The BLOWER MODULE is located on the A/C EVAPORATOR housing located UNDER THE HOOD passenger side firewall. Has 2 electrical connectors. Mounted with 4 screw bolts.Hope this helps

Posted on May 21, 2009

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