How to replace the Engine Coolant Temperature (ECT) sensor on Chevrolet Trailblazer?

A thermistor, the Engine Coolant Temperature (ECT) sensor is a resistor that varies its resistance value in relation to temperature. The voltage signal coming from the sensor to the PCM is directly affected by this change in resistance values. When the temperature of the sensor rises, their resistance value goes down and vice versa. The first step to replacing it involves draining out the cooling system completely. After that, pull apart the electrical connector from the sensor harness. Alternately, on six-cylinder engines, disconnecting and removing alternator and remove it easily and carefully. Unscrew the sensor from its position on the engine gently. However, with six-cylinder engines, it is threaded into an engine block. On v8 engines, just above Number One spark plug on front side of left cylinder head is sited ECT Sensor. If there isn't any sealing compound applied on threads of a new sensor cover them using Teflon sealing tape so as to avoid leaks occurring during installation process. Finally one does installation after removing.

What is the purpose of the Coolant Temperature Sensor for Chevrolet Trailblazer?

The coolant temperature indicator system includes a gauge or warning light on the dashboard and a sensor on the engine. The sensor serves multiple purposes, acting as an information sensor for the fuel and emissions systems and as a sending unit for the temperature gauge. If overheating, check the coolant level and make sure the wiring and fuses are intact. If the sensor is functioning properly, have the temperature gauge checked using a scan tool to access information from the PCM.

Genuine Chevrolet Trailblazer Coolant Temperature Sensor

Coolant Water Temperature Sensor

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7 Coolant Temperature Sensors found

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Chevrolet Trailblazer Sensor Assembly, Engine Coolant Temperature
Part Number: 12608814
$30.69 MSRP: $57.90
You Save: $27.21 (47%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: SENSOR, Coolant Temperature (Engine Unit)
- Replaces: 15369305, 25037062, 12191170, 15326388
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2003-2009 Chevrolet Trailblazer | 4 DOOR, 4 DOOR EXT | 8 Cyl 5.3L, 8 Cyl 6.0L
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Chevrolet Trailblazer Sensor,Engine Coolant Temperature
Part Number: 12601050
$26.48 MSRP: $49.96
You Save: $23.48 (47%)
Ships in 1 Business Day
ADD TO CART
Product Specifications
- Other Name: SENSOR, Coolant Temperature (Engine Unit)
- Replaces: 12609558, 12586299, 12590959
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2006-2009 Chevrolet Trailblazer | 4 DOOR, 4 DOOR EXT | 6 Cyl 4.2L
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Chevrolet Trailblazer Sensor Assembly, Engine Coolant Temperature
Part Number: 12641073
$12.27 MSRP: $23.16
You Save: $10.89 (48%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: SENSOR, Coolant Temperature (Engine Unit)
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2021-2025 Chevrolet Trailblazer | 4 DOOR EXT, LEVEL II 4 DOOR EXTENDED, LEVEL III 4DOOR EXTENDED | 3 Cyl 1.2L
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Chevrolet Trailblazer Sensor,Engine Coolant Temperature
Part Number: 19244715
$39.28 MSRP: $81.56
You Save: $42.28 (52%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: SENSOR, Computer Control Sensors
- Replaces: 12564512
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2002-2005 Chevrolet Trailblazer | 4 DOOR, 4 DOOR EXT | 6 Cyl 4.2L
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Chevrolet Trailblazer Sensor, Eng Cool Temp
Part Number: 55488246
$4.49 MSRP: $9.32
You Save: $4.83 (52%)
ADD TO CART
Product Specifications
- Other Name: Coolant Temperature Sensor, Temperature Sensor
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2021-2025 Chevrolet Trailblazer | 4 DOOR EXT, LEVEL II 4 DOOR EXTENDED, LEVEL III 4DOOR EXTENDED, LEVEL IV 4 DOOR EXTENDED, LEVEL V 4 DOOR EXTENDED | 3 Cyl 1.3L
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Chevrolet Trailblazer Sensor Assembly, Eng Cool Temp (Part Of Cooling System)
Part Number: 55497116
$6.47 MSRP: $11.76
You Save: $5.29 (45%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2021-2025 Chevrolet Trailblazer | 4 DOOR EXT, LEVEL II 4 DOOR EXTENDED, LEVEL III 4DOOR EXTENDED, LEVEL IV 4 DOOR EXTENDED, LEVEL V 4 DOOR EXTENDED | 3 Cyl 1.3L
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Chevrolet Trailblazer Sensor Assembly, Eng Cool Temp
Part Number: 55489870
$5.43 MSRP: $8.55
You Save: $3.12 (37%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Coolant Temperature Sensor, Temperature Sensor
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2021-2025 Chevrolet Trailblazer | 4 DOOR EXT, LEVEL II 4 DOOR EXTENDED, LEVEL III 4DOOR EXTENDED, LEVEL IV 4 DOOR EXTENDED, LEVEL V 4 DOOR EXTENDED | 3 Cyl 1.3L

Chevrolet Trailblazer Coolant Temperature Sensor

Chevrolet Trailblazer Coolant Temperature Sensor is used to regulate engine coolant temperature, to maintain efficiency of working in the motor. With the assistance of the sensor, the temperature is recorded instantaneously to ensure that the engine does not lose its competency and output regularly. It is not stated exactly which Trailblazer models contain which style of Coolant Temperature Sensor, but it is known that there may be many different styles. The primary function remains consistent: to allow correct measurements of the coolant temperature which is vital for efficient control of the engine. Therefore it can be realized that this sensor is essential in the overall running and durability of the vehicle hence plays an important role in the automotive system.

Each OEM Chevrolet Trailblazer Coolant Temperature Sensor we offer is competitively priced and comes with the assurance of the manufacturer's warranty for the part. Furthermore, we guarantee the speedy delivery of your orders right to your doorstep. Our hassle-free return policy is also in place for your peace of mind.

Chevrolet Trailblazer Coolant Temperature Sensor Parts Questions & Experts Answers

Sensor,Engine Coolant Temperature
12601050
Q: How to replace the Engine Coolant Temperature (ECT) sensor on Chevrolet Trailblazer?
A: A thermistor, the Engine Coolant Temperature (ECT) sensor is a resistor that varies its resistance value in relation to temperature. The voltage signal coming from the sensor to the PCM is directly affected by this change in resistance values. When the temperature of the sensor rises, their resistance value goes down and vice versa. The first step to replacing it involves draining out the cooling system completely. After that, pull apart the electrical connector from the sensor harness. Alternately, on six-cylinder engines, disconnecting and removing alternator and remove it easily and carefully. Unscrew the sensor from its position on the engine gently. However, with six-cylinder engines, it is threaded into an engine block. On v8 engines, just above Number One spark plug on front side of left cylinder head is sited ECT Sensor. If there isn't any sealing compound applied on threads of a new sensor cover them using Teflon sealing tape so as to avoid leaks occurring during installation process. Finally one does installation after removing.
Sensor Assembly, Engine Coolant Temperature
12608814
Q: What is the purpose of the Coolant Temperature Sensor for Chevrolet Trailblazer?
A: The coolant temperature indicator system includes a gauge or warning light on the dashboard and a sensor on the engine. The sensor serves multiple purposes, acting as an information sensor for the fuel and emissions systems and as a sending unit for the temperature gauge. If overheating, check the coolant level and make sure the wiring and fuses are intact. If the sensor is functioning properly, have the temperature gauge checked using a scan tool to access information from the PCM.