Mechanics

CHEVY COOLANT TEMP SENSOR

2003 Chevrolet Trailblazer

Engine Mechanical problem
2003 Chevy Trailblazer 6 cyl Two Wheel Drive Automatic 64000 miles

where is the coolant temp sensor located
AD
Avatar
Bikerthug
November 6, 2008.



Hello – bikerthug

Here is the info you requested

Hope this helps.

If you would like to offer feedback on your experience with me/us – feel free to go into the blue “Give Feedback” area under ImpalaSS

Thank you very much for the donation.

Find a car repair manual for your car repair questions.


http://www.2carpros.com/forum/automotive_pictures/248015_102980753_1.jpg



ENGINE COOLANT TEMPERATURE (ECT) SENSOR REPLACEMENT

REMOVAL PROCEDURE

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

Turn the engine OFF.
Disconnect the negative battery terminal. CAUTION: Refer to Battery Disconnect Caution in Service Precautions.
Drain coolant below the level of the ECT sensor. Refer to Draining and Filling Cooling System (Body Vin Code 6)Draining and Filling Cooling System (Body Vin Code 3) in Cooling System.


http://www.2carpros.com/forum/automotive_pictures/248015_1_29.jpg



Disconnect the ECT sensor electrical connector (1).
Remove the drive belt and the generator.


http://www.2carpros.com/forum/automotive_pictures/248015_2_21.jpg



Carefully remove the ECT sensor (1).
INSTALLATION PROCEDURE

NOTE:

Use care when handling the coolant sensor. Damage to the coolant sensor will affect the operation of the fuel control system.
Replacement components must be the correct part number for the application. Components requiring the use of the thread locking compound, lubricants, corrosion inhibitors, or sealants are identified in the service procedure. Some replacement components may come with these coatings already applied. Do not use these coatings on components unless specified. These coatings can affect the final torque, which may affect the operation of the component. Use the correct torque specification when installing components in order to avoid damage.
If installing the original sensor or a new sensor without sealant, apply thread sealer P/N 12346004 or equivalent.


http://www.2carpros.com/forum/automotive_pictures/248015_3_18.jpg



Install the ECT sensor. NOTE: Refer to Fastener Notice in Service Precautions. Tighten Tighten the ECT sensor to 16 N.m (12 lb ft) .


http://www.2carpros.com/forum/automotive_pictures/248015_4_9.jpg



Connect the ECT electrical connector (1).
Install the generator and the drive belt.
Connect the negative battery terminal.
Refill the engine coolant. Refer to Draining and Filling Cooling System (Body Vin Code 6)Draining and Filling Cooling System (Body Vin Code 3) in Cooling System.

ImpalaSS
Nov 6, 2008.


AD