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Engine coolant temperature sensor location

I need to find the engine coolant temperature sensor but i need a schematic or diagram of it, to find it.

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6 Suggested Answers

rockitman187
  • 2559 Answers

SOURCE: locate engine temperature coolant sensor on jetta TDI 2004

This is it.8c0bf30.jpg

Posted on Jan 08, 2009


mechanicm639
  • 253 Answers

SOURCE: location of engine coolant temperature sensor on

It is a 2 wire seneor under the throttle body. You will have to remove the air breather and it will be a brass/black plastic sensor. A 3/4 socket will fit it.Good Luck

Posted on May 19, 2009

  • 2 Answers

SOURCE: 99 cadillac de ville

the coolant temp sensor is at the rear of the engine and is a "bad word" to get to. the 3 relays are at the bottom,under the fans. if you remove the driver side fan out of the way( 2 10mm bolts holding the fan) you should have good access to them. they do have locks on them and may be tricky to unplug. there is a 7/16 nut holding the relay plate down. remove and it should be easy to remove them.

Posted on Jul 09, 2008

  • 393 Answers

SOURCE: coolant sensor location

i believe it is located near upper radiator hose(where it connects to thermostat housing).there is also another temp.sensor mounted on the cylinder head itself(for cooling fan operation)

Posted on Nov 15, 2008

michigan man
  • 3533 Answers

SOURCE: I need to find out

normally this located by the thermastat housing if you follow the hose upper radiator hose to the thermastat housing there is a little plug with a wire on it and that is the temp sensor

Posted on Jan 03, 2009

  • 333 Answers

SOURCE: location of the coolant temperature sensor

You will find this sensor where the fat hos comes from the radiator and conects to the engine block. It would be on the housing where the thermostat is located. If it is not there you should look for a sensor that has a wire connected to it anywhere on the engine block where a water inlet is located. I hope this helps. Don't forget to rate my answer, thanks.

Posted on Feb 13, 2009

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1 Answer

Where is coolant sensor located on 2005 dodge magnum


The Engine Coolant Temperature (ECT) sensor on the 5.7 / 6.1L engine is located under the air conditioning compressor. It is installed into a water jacket at the front of the cylinder block. The link has more info and a diagram. Location of coolant temp sensor

Aug 02, 2015 | Dodge Cars & Trucks

3 Answers

P0118


As with all engine codes there is no one solution fits all, here is the info on the code from the diagnostic material.
P0118 - Engine Coolant Temperature Circuit High Input
Possible causes - Low engine coolant level
- Engine Coolant Temperature (ECT) sensor harness is open or shorted
- Engine Coolant Temperature (ECT) sensor electrical circuit poor connection
- Faulty Engine Coolant Temperature (ECT) sensor
- Faulty engine coolant thermostat P0118 Description The Engine Coolant Temperature (ECT) sensor is used to detect the engine coolant temperature. The sensor modifies a voltage signal from the Engine Control Module (ECM). The modified signal returns to the ECM as the engine coolant temperature input. The sensor uses a thermistor which is sensitive to the change in temperature. The electrical resistance of the thermistor decreases as temperature increases.

Feb 02, 2012 | 2005 Chevrolet Tahoe

1 Answer

Where is the tempurture cooling sensor located on a 1994 buick regal


The coolant temperature sensor is a thermistor mounted in the engine coolant stream. A thermistor is an electrical device that varies its resistance in relation to changes in temperature.

For 2.5L engines, the coolant temperature sensor is located on the left side of the cylinder head.

For MFI engines, the coolant temperature sensor is located on the intake manifold water jacket or near (or on) the thermostat housing.

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Fig. 1: Engine Coolant Temperature (ECT) sensor and connector


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Fig.: Engine Coolant Temperature (ECT) sensor location-3.1L (VIN T) engine shown

Hope this helps (remember to rating this and leave an testimonial comment about this free answer).

Oct 10, 2011 | 1994 Buick Regal Gran Sport

1 Answer

Trying to locate coolant temperature sensor in 06 mazda 3


The coolant temperature sensor (ECT) is located on the coolant tube near the air filter housing, I have included a few diagrams to assist in helping you to locate this sensor. These diagrams are for the 3.0L engine.


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Here is the location if this is the 2.3L engine


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Sep 18, 2011 | 2006 Mazda 3

1 Answer

Where is the temperature sensor for the temperature gage


Engine Temperature Sensor Operation:00116_engine_temp_sensor.jpgThis sensor monitors the temperature of the engine and sends that information to the engine control computer to regulate the amount of fuel needed - more if engine is cold and less if it's hot. The signal generated can also be sent to the temperature gauge as a visual indicator of overheating and imminent danger

I checked with autozone.com and their site says that the engine temperature sensor is not used on both engine sizes available for this vehicle.

The Coolant Temperature Sensor is used though. So maybe it has a dual purpose on your vehicle.

Coolant Temperature Sensor Operation:00113_coolant_temp_sensor.jpgThis sensor monitors the temperature of the engine and sends that information to the engine control computer to regulate the amount of fuel needed. More fuel is needed if the engine is cold; less if it's hot. If the temperature is extreme, the signal will be sent to the temperature gauge as a visual indicator of overheating and imminent danger.

Because ECT (engine coolant temperature) sensor procedures vary depending upon their location, first locate the part. You may need to partially drain the engine coolant to prevent coolant spillage.
  • Disconnect the negative battery cable.
  • Unplug the ECT.
  • Then, unscrew it.
  • Reverse the removal procedures to install the new part.
  • Connect the negative battery cable to the battery.









Nov 03, 2010 | 1995 Chevrolet Caprice Classic

2 Answers

Where is coolant temp sensor located


Not sure of your engine size so please pick the appropriate diagram:


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Coolant temperature and oil pressure senders-4.3L engines



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Coolant temperature and oil pressure senders-5.0L and 5.7L engines



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Coolant temperature and oil pressure senders-7.4L engines



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Coolant temperature and oil pressure senders-6.2L and 6.5L diesel engines

Sep 15, 2010 | 1994 GMC Sierra

1 Answer

Cobalt coolant temperature sensor diagram


COBALT THE 2.2L AND 2.4L COOLANT TEMPERATURE SENSOR LOCATION IS LOCATED ON THERMOSTAT HOUSING.THE 2.0L ENGINE COOLANT TEMPERATURE SENSOR LOCATION RIGHT FRONT PASSENGERS SIDE CORNER OF THE CYLINDER HEAD NEAR THE VALVE COVER.

Aug 20, 2010 | Chevrolet Cobalt Cars & Trucks

1 Answer

Trouble locating cooling sensor on 2003 gmc envoy


4.2L Engine To Remove:
  1. Disconnect the negative battery cable from the battery.
  2. Drain the coolant from the engine.
  3. Disconnect the engine coolant temperature (ECT) sensor connector. Engine coolant temperature sensor removal and installation gm-04-42-1509.gif

  4. Remove the engine coolant temperature (ECT) sensor from the engine.
To Install:
  1. Apply thread sealer P/N 12346004 or equivalent to the engine coolant temperature (ECT) sensor threads.
  2. Install the engine coolant temperature (ECT) sensor into the engine. Torque the sensor to 12 ft-lb (16 Nm).
  3. Connect the engine coolant temperature (ECT) sensor connector.
  4. Refill the engine with coolant.
  5. Connect the negative battery cable to the battery.
5.3L & 6.0L Engines To Remove:
  1. Drain the coolant from the engine.
  2. Disconnect the engine coolant temperature (ECT) sensor connector. Engine coolant temperature sensor removal and installation removeect.gif

  3. Remove the engine coolant temperature (ECT) sensor from the left cylinder head.
To Install:
  1. Apply thread sealer P/N 12346004 or equivalent to the engine coolant temperature (ECT) sensor threads.
  2. Install the engine coolant temperature (ECT) sensor into the left cylinder head. Torque the sensor to 15 ft-lb (20 Nm).
  3. Connect the engine coolant temperature (ECT) sensor connector.
  4. Refill the engine with coolant.

Jul 08, 2010 | 2003 GMC Envoy

2 Answers

Heating System


The Engine Coolant Temperature (ECT) sensor is mounted in the intake manifold and sends engine temperature information to the ECM. The ECM supplies 5 volts to the coolant temperature sensor circuit. The sensor is a thermistor which changes internal resistance as temperature changes. When the sensor is cold (internal resistance high), the ECM monitors a high signal voltage which it interprets as a cold engine. As the sensor warms (internal resistance low), the ECM monitors a low signal voltage which it interprets as warm engine.
0900c1528008f125.jpgFig. 1: View of the Engine Coolant Temperature (ECT) sensor 0900c1528008f126.jpgFig. 2: Engine Coolant Temperature (ECT) sensor locationTESTING
See Figures 3 and 4
  1. Remove the ECT sensor from the vehicle.
  2. Immerse the tip of the sensor in container of water.
  3. Connect a digital ohmmeter to the two terminals of the sensor.
  4. Using a calibrated thermometer, compare the resistance of the sensor to the temperature of the water. Refer to the engine coolant sensor temperature vs. resistance illustration.
  5. Repeat the test at two other temperature points, heating or cooling the water as necessary.
  6. If the sensor does not meet specification, it must be replaced.
0900c1528008f120.jpgFig. 3: Intake Air Temperature (IAT) and Engine Coolant Temperature (ECT) sensor wiring diagram 0900c1528008f095.jpgFig. 4: ECT sensor temperature vs. resistance values

Oct 01, 2008 | 1993 GMC Sierra

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