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External thermometre is not working where is this located

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Normally most of them are located around the front of the vehicle near the front grill. It will be a small plastic sensor with either 2 or 3 wires going into it and nothing coming out of it. So look around the front grill and headlight area for something that looks like the tip of a larger permanent marker tip without the top on it and has wires connected to it. Hope this helps b

Posted on Nov 28, 2012

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How to test a coolant SENSOR

Hello there
This should help you out a lot ok

To test, use a high impedance volt-ohmmeter. Resistance should be less than 1000 ohms with a WARM engine (examples = 212* would be about 185 ohms, 160* would be about 450 ohms, 100* (not warm enough) would be 1,600 ohms).

> What does it do? Adjusts the injector pulse widths (Colder coolant temperatures result in longer injector pulse widths and richer air-fuel mixtures). Compensates for fuel condensation in intake manifold. Controls engine warm-up idle speed. Increases ignition advance when engine is cold. Energizes the EGR valve solenoid to prevent flow of vacuum to the EGR valve. Update: Basically - this sensor functions by providing a resistance-to-ground circuit that the computer (ECU) uses to determine how much fuel the engine requires. (The hotter the coolant - the lower the resistance.) The resistance of the sensor is read by the ECU which in turn adjusts the air/fuel ratio as close to 14.7:1 as possible. When a coolant temperature sensor fails (open circuit / no continuity) the high / infinite resisitance will cause the ECU to falsely read the max low temperature of -40 degrees F. The ECU then tells the injectors to enrichen the fuel mixture because it thinks the temp is really cold when it really isn't. A short to ground would cause a 'no-resistance' fault causing the ECU to think the coolant air temperature was extremely hot and lean out the fuel mix.

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1 Answer

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The external temp sensor is located just in front of the right front underside of the car.It is located just in front of the right tire.It will most definately be underneath a protective panel and is quite a large,you can'tt miss it.

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The External Temp sensor on my 2004 Kia sorento is inop

External temp sensor is located in front of ac condensor lower part.

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