Question about 2002 Cadillac Deville

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Where is the ect(coolant) sensor located on a 02 cadillac deville???

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The engine coolant temp sensor is located just below the throttle body.Just remove the air cleaner tube and you should be able to see it.There will be a black and a yellow wire on the connector.Hope this helps.Good luck.

Posted on Nov 07, 2010

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Posted on Jan 02, 2017

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I need help finding the coolant temp sensor can u please help me


NOTE Use care when handling the ECT sensor. Damage to the coolant sensor will affect the operation of the fuel control system.

NOTE The engine coolant temperature sensor is located on the intake manifold water jacket or near the thermostat housing. On the 4.6L engine, the coolant temperature sensor is located on the rear cylinder head, at the cruise control servo bracket. It is necessary to drain coolant from the cooling system to a level below the sensor, prior to sensor removal.
  1. Disconnect the negative battery cable.
  2. Drain the coolant level below the height of the ECT and recycle the engine coolant.
  3. Detach the electrical connector at the sensor.
  4. Remove any obstruction to access the ECT.
    1. On the Catera, this would include removing the intake plenum and the intake bridge.

  5. Using a deep well socket, remove the sensor.

To install:
  1. Coat the threads of the new sensor and install it in the engine. Tighten to 15 ft. lbs.
  2. Install the electrical connector.
  3. Refill the system with coolant.
  4. Connect the negative battery cable.

May 18, 2013 | 1998 Cadillac DeVille

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Location of cooling fan sending unit 1999 cadillac deville?


If you are refering to the Engine Coolant Temperature (ECT) sensor,it is located on the right rear of the engine below the exhaust gas recirculation (EGR) valve.

HINT: If your Deville is equipped with the analog instrument cluster and the temperature gauge is working, or if you have the digital instrument cluster and the driver information center (DIC) has been diplaying messages telling you that the engine is hot, the problem with your engine cooling fans is NOT the sensor.

Jun 02, 2012 | Cars & Trucks

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Where can i find the ect sensor on my 1999 cadillac deville


Click over pic for zoom...

zjlimited_1119.jpg

Fig. Showing the location of MAP Sensor and other components on the front of the engine: 1. Manifold Absolute Pressure (MAP) Sensor; 2. Idle Air Control (IAC) Valve; 3. Engine Coolant Temperature (ECT) Sensor; 4. Throttle Position (TP) Sensor

zjlimited_1120.jpg

Fig. Engine coolant temperature sensor (1).

Apr 28, 2011 | 1999 Cadillac DeVille

1 Answer

Picture of were coolant sensor is located


you have 4.6l engine ect sensor located below the egr valve. now if you have 4.9l engine ect located on the thermostat housing.

Apr 03, 2011 | 1997 Cadillac DeVille

1 Answer

What is the easiest way to remove and replace the engine coolant temperature (ECT) sensor on a 99 Cadillac Deville, 4.6L


disconnect the negative battery cable.
Pull the harness of the sensor.
Drain about 1/4 of the radiator fluid.
Place a rag under the sensor and use a wrench to remove and replace the sensor.

Aug 12, 2010 | 1999 Cadillac DeVille

1 Answer

Have an 02 Cadillac Deville with 32k miles on it. Had a Cadillac dealer flush coolant and replace, and now every time I start the car the DIC reads "Check Coolant Level". Coolant level is fine. Now the...


Why replace the radiator it's just a bad sensor. Get the Haynes repair manual on your vehicle look up the water level sensor testing and replacement steps. The sensor probably cost around $30 and I doubt if it takes more than 30 minutes to replace.

Aug 08, 2010 | 2002 Cadillac Deville

1 Answer

Where is the coolant temp sensor located on 02 deville?


on the intake manifold near the thermostat housing

Apr 26, 2010 | 2002 Cadillac Deville

1 Answer

Location of coolant temperature sensor


Maybe this will help . although this is from a 1997 Caddy.


Cadillac DeVille Engine Coolant Temperature (ECT) Sensor Location62451583.gif

Nov 20, 2008 | 2004 Cadillac CTS

1 Answer

2002 Cadillac Coolant sensor


The engine coolant temperature sensor is located on the driver side of the engine near the rear of the engine compartment

Oct 08, 2008 | 1999 Cadillac DeVille

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