How to replace the Coolant Temperature Sensor on Chevrolet Blazer?

Begin by turning off ignition before removing the wing nuts from the air cleaner cover and air cleaner outlet duct to shift the air intake assembly out of the way. Before removing the ect sensor users should drain coolant to below the ect sensor level while they disconnect the ect sensor harness connector. You should only apply gm p/n 12346004 sealer or equivalent to thread surfaces before putting the ect sensor into the engine while tightening it to a torque of 20 n.m (15 lbft). After you connect the ect sensor harness connector you must refill the cooling system then install the air cleaner outlet duct assembly before tightening the wing nuts. After completing all steps disconnect the negative Battery Cable. Exercise extreme caution when dealing with the coolant sensor since any damages will cause issues with fuel control function.

OEM Chevrolet Blazer Coolant Temperature Sensor

Coolant Water Temperature Sensor

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10 Coolant Temperature Sensors found

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Chevrolet Blazer Coolant Temperature Sensor Part Number: 12656444
$12.82 MSRP: $23.93
You Save: $11.11 (47%)
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Product Specifications
- Other Name: Sensor, Computer Control Sensors; Engine Coolant Temperature Sensor; Temperature Sensor; Sensor, Coolant Temperature (Engine Unit)
- Replaces: 12636534
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2019-2021 Chevrolet Blazer | Base, L, LT | 4 Cyl 2.5 L GAS
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Chevrolet Blazer Coolant Temperature Sensor Part Number: 25037332
$41.23 MSRP: $77.42
You Save: $36.19 (47%)
Ships in 1 Business Day
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Product Specifications
- Other Name: Sensor, Coolant Temperature (Engine Unit); Temperature Sensor; Coolant Sensor; Temperature Sending Unit
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1992-1995 Chevrolet Blazer | Base, Cheyenne, Silverado, Silverado Sport | 6 Cyl 4.3 L GAS, 8 Cyl 5.7 L GAS, 8 Cyl 6.5 L DIESEL
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Chevrolet Blazer Coolant Temperature Sensor Part Number: 15326386
$24.96 MSRP: $46.88
You Save: $21.92 (47%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Sensor, Engine Coolant Temperature; Air Charge Temperature Sensor; Intake Air Temperature Sensor.; Temperature Sensor; Manifold Pressure Sensor; Oil Pressure Unit; Fan Switch; Other Sensors
- Replaces: 12146312, 25036979
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1987-2005 Chevrolet Blazer | Base, Cheyenne, Custom Deluxe, LS, LT, Scottsdale, Silverado, Silverado Sport, Trailblazer, Xtreme, ZR2 | 6 Cyl 4.3 L GAS, 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L GAS, 8 Cyl 6.2 L DIESEL, 8 Cyl 6.5 L DIESEL
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Chevrolet Blazer Coolant Temperature Sensor Part Number: 55489870
$6.00 MSRP: $9.41
You Save: $3.41 (37%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Sensor, Computer Control Sensors; Engine Coolant Temperature Sensor; Temperature Sensor; Sensor, Coolant Temperature (Engine Unit)
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2020-2024 Chevrolet Blazer | LT, Premier, RS | 4 Cyl 2.0 L GAS
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Chevrolet Blazer Coolant Temperature Sensor Part Number: 55497116
$6.93 MSRP: $12.94
You Save: $6.01 (47%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Sensor Assembly-Engine Coolant Temperature (Part Of Coolin; Engine Coolant Temperature Sensor; Temperature Sensor; Coolant Temperature Sensor; Drive Motor Battery Cooling Sensor.
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2020-2024 Chevrolet Blazer | LT, Premier, RS | 4 Cyl 2.0 L GAS
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Chevrolet Blazer Coolant Temperature Sensor Part Number: 55488246
$5.40 MSRP: $9.78
You Save: $4.38 (45%)
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Product Specifications
- Other Name: Sensor, Computer Control Sensors; Engine Coolant Temperature Sensor; Temperature Sensor; Sensor, Coolant Temperature (Engine Unit); Sensor, Transmission Oil Cooler
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2020-2024 Chevrolet Blazer | LT, Premier, RS | 4 Cyl 2.0 L GAS
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Chevrolet Blazer Temperature Sending Unit Part Number: 8993146
Product Specifications
- Other Name: Sensor Assembly-Engine Wtr Temperature (1 Terminal); Sensor, Coolant Temperature (Engine Unit)
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1987-1991 Chevrolet Blazer | Custom Deluxe, Scottsdale, Silverado | 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L GAS, 8 Cyl 6.2 L DIESEL
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Chevrolet Blazer Temperature Sending Unit Part Number: 25037177
Product Specifications
- Other Name: Switch, Engine Coolant Temperature Indicator; Switch, Coolant Temperature (Engine Unit)
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1987-1990 Chevrolet Blazer | Custom Deluxe, Scottsdale, Silverado | 8 Cyl 6.2 L DIESEL
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Chevrolet Blazer Temperature Sending Unit Part Number: 25036371
Product Specifications
- Other Name: Switch, Coolant Temperature (Engine Unit); Switch Package, Coolant Temperature (Engine Unit); Switch, Engine Coolant Temperature ( Engine Unit)
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1987-1989 Chevrolet Blazer | Custom Deluxe, Scottsdale, Silverado | 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L GAS
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Chevrolet Blazer Temperature Sending Unit Part Number: 12554145
Product Specifications
- Other Name: Sensor, Coolant Temperature (Engine Unit)
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1996-2005 Chevrolet Blazer | Base, LS, Xtreme, ZR2 | 6 Cyl 4.3 L GAS

Chevrolet Blazer Coolant Temperature Sensor

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According to the list of sensors of Chevrolet Blazer car, Coolant Temperature Sensor, it is tasked with the measurement of the temperature of the coolant. Having the responsibility of observing changes of temperature within the coolant, this sensor helps in determining the working parameters of the engine. Of course over the years many different Makes and Models of Blazer may have had fitted in them some time or other sorts of Coolant Temperature Sensors as all the types are built and function differently. In this guide, we will learn more on Coolant Temperature Sensor or CTS and its importance in enhancing your Chevrolet Blazer to a reliable vehicle.

Chevrolet Blazer Coolant Temperature Sensor Parts Questions & Experts Answers

Coolant Temperature Sensor
15326386
Q: How to replace the Coolant Temperature Sensor on Chevrolet Blazer?
A:
Begin by turning off ignition before removing the wing nuts from the air cleaner cover and air cleaner outlet duct to shift the air intake assembly out of the way. Before removing the ect sensor users should drain coolant to below the ect sensor level while they disconnect the ect sensor harness connector. You should only apply gm p/n 12346004 sealer or equivalent to thread surfaces before putting the ect sensor into the engine while tightening it to a torque of 20 n.m (15 lbft). After you connect the ect sensor harness connector you must refill the cooling system then install the air cleaner outlet duct assembly before tightening the wing nuts. After completing all steps disconnect the negative Battery Cable. Exercise extreme caution when dealing with the coolant sensor since any damages will cause issues with fuel control function.