How to check and replace Camshaft Position Sensor,Coolant Temperature Sensor,Crankshaft Position Sensor,Intake Manifold Temperature Sensor,Knock Sensor,Oxygen Sensor,Vehicle Speed Sensor,Neutral Safety Switch,MAP Sensor and Throttle Position Sensor on Chevrolet Blazer,S10,GMC Jimmy and Sonoma?

Various engine sensors and components have checking procedures,the engine coolant temperature (ECT) sensor is a thermistor that changes resistance with temperature, and a failure in the circuit can cause trouble codes. The resistance should be measured when cold and warm while ensuring reference voltage from PCM is around 5.0 volts for the verification. Manifold Absolute Pressure (MAP) Sensor monitors changes in intake manifold pressure then varies its voltage output accordingly. Look at the reference voltage and signal voltage with the ignition on and engine off, and observe voltage changes as the engine's vacuum changes. Intake Air Temperature (IAT) Sensor acts as a thermistor where you can measure its resistance at different temperatures to make sure it changes as expected. Also, use a scan tool to monitor the IAT sensor for performance. The oxygen sensor in exhaust detects oxygen content which you can check its millivolt signal while warming up your engine. Check whether the oxygen sensor heater has correct voltage or not. Vehicle Speed Sensor (VSS) provides speed data to PCM which can be checked for reference voltage. Depending on the type of engine, Camshaft Sensor and Crankshaft Sensor should be checked for resistance and proper signal output. Finally, Knock Sensors detect engine knock which should be checked for reference voltage and resistance. If any component fails these checks, replacement may be necessary.

How to remove the defective sending unit on Chevrolet Blazer,S10,GMC Jimmy and Sonoma?

Ensure the engine is cool before removing the defective sending unit. Be prepared to catch some coolant loss as the unit is removed. Coat the threads of the new sending unit with sealant. Disconnect the electrical connector and unscrew the old sensor from the engine and install the replacement. After the replacement unit has been installed, check the coolant level and top up the system, if necessary. Now, check for proper operation of the gauge and sending unit.

Genuine Chevrolet Blazer Coolant Temperature Sensor

Coolant Water Temperature Sensor

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21 Coolant Temperature Sensors found

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Chevrolet Blazer Sensor, Engine Coolant Temperature
Part Number: 12650595
$7.77 MSRP: $16.14
You Save: $8.37 (52%)
ADD TO CART
Product Specifications
- Other Name: SENSOR, Coolant Temperature (Engine Unit); Coolant Temperature Sensor, Temperature Sensor
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2019-2020 Chevrolet Blazer | HIGH COUNTRY/LTZ 4 DOOR SUV, LT 4 DOOR SUV, RS 4 DOOR SUV | 6 Cyl 3.6L
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Chevrolet Blazer Sensor, Engine Coolant Temperature
Part Number: 12656444
$11.00 MSRP: $22.85
You Save: $11.85 (52%)
ADD TO CART
Product Specifications
- Other Name: SENSOR, Coolant Temperature (Engine Unit); Coolant Temperature Sensor, Temperature Sensor
- Replaces: 12636534
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2019-2021 Chevrolet Blazer | L 4 DOOR SUV, LT 4 DOOR SUV | 4 Cyl 2.5L
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Chevrolet Blazer Sensor,Engine Coolant Temperature
Part Number: 15326386
$27.06 MSRP: $51.06
You Save: $24.00 (47%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: SENSOR, Computer Control Sensors
- Replaces: 12146312, 25036979
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1985-2002 Chevrolet Blazer | 1/2 TON, 2 DOOR, 4 DOOR | 6 Cyl 4.3L, 8 Cyl 5.0L, 8 Cyl 5.7L, 8 Cyl 6.2L Diesel, 8 Cyl 6.5L Diesel
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Chevrolet Blazer Sensor,Engine Coolant Temperature Gage
Part Number: 25037332
$40.23 MSRP: $75.90
You Save: $35.67 (47%)
Ships in 1 Business Day
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:
- 1992-1995 Chevrolet Blazer | 1/2 TON, 2 DOOR, 4 DOOR | 6 Cyl 4.3L, 8 Cyl 5.7L, 8 Cyl 6.5L Diesel
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Chevrolet Blazer Sensor,Engine Coolant Temperature Gage
Part Number: 25037333
$35.40 MSRP: $66.80
You Save: $31.40 (48%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: SENSOR, Coolant Temperature (Engine Unit); Temperature Sending Unit
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1987-1994 Chevrolet Blazer | 1/2 TON | 8 Cyl 6.2L Diesel
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Chevrolet Blazer Temperature Sender
Part Number: 25037346
$13.33 MSRP: $80.13
You Save: $66.80 (84%)
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:
- 1985-1991 Chevrolet Blazer | 1/2 TON | 8 Cyl 6.2L Diesel
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Chevrolet Blazer 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:
- 2020-2024 Chevrolet Blazer | HIGH COUNTRY/LTZ 4 DOOR SUV, LT 4 DOOR SUV, RS 4 DOOR SUV | 4 Cyl 2.0L, 6 Cyl 3.6L
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Chevrolet Blazer 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:
- 2020-2024 Chevrolet Blazer | HIGH COUNTRY/LTZ 4 DOOR SUV, LT 4 DOOR SUV, RS 4 DOOR SUV | 4 Cyl 2.0L
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Chevrolet Blazer 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:
- 2020-2024 Chevrolet Blazer | HIGH COUNTRY/LTZ 4 DOOR SUV, LT 4 DOOR SUV, RS 4 DOOR SUV | 4 Cyl 2.0L
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Chevrolet Blazer Switch Pkg, Tem
Part Number: 25036512
Product Specifications
- Other Name: SWITCH; Temperature Sending Unit
- Replaces: 25036507
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1985-1991 Chevrolet Blazer | 1/2 TON | 8 Cyl 5.0L, 8 Cyl 5.7L, 8 Cyl 6.2L Diesel
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Chevrolet Blazer Switch, Coolant Temperature
Part Number: 25037176
Product Specifications
- Other Name: SWITCH, Coolant Temperature (Engine Unit); Temperature Sending Unit
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1985-1986 Chevrolet Blazer | 1/2 TON | 8 Cyl 6.2L Diesel
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Chevrolet Blazer Sensor Assembly, Engine Wtr Temperature(1 Terminal)
Part Number: 8993146
Product Specifications
- Other Name: SENSOR; Temperature Sending Unit
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1985-1992 Chevrolet Blazer | 1/2 TON | 6 Cyl 4.3L, 8 Cyl 5.0L, 8 Cyl 5.7L, 8 Cyl 6.2L Diesel
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Chevrolet Blazer Switch,Engine Coolant Temperature Indicator
Part Number: 25037177
Product Specifications
- Other Name: SWITCH; Temperature Sending Unit
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1985-1991 Chevrolet Blazer | 1/2 TON | 8 Cyl 6.2L Diesel
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Chevrolet Blazer Switch Assembly, Engine Metal Temperature Indicator
Part Number: 14087514
Product Specifications
- Other Name: SWITCH, Coolant Temperature (Engine Unit)
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1985-1989 Chevrolet Blazer | 1/2 TON | 8 Cyl 5.0L, 8 Cyl 5.7L
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Chevrolet Blazer Switch Pkg, Coolant Temperature
Part Number: 25036371
Product Specifications
- Other Name: SWITCH, Coolant Temperature (Engine Unit); Temperature Sending Unit
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1985-1991 Chevrolet Blazer | 1/2 TON | 8 Cyl 5.0L, 8 Cyl 5.7L, 8 Cyl 6.2L Diesel
View related parts
Chevrolet Blazer Switch Asm,Engine Metal Temperature Indicator
Part Number: 25036513
Product Specifications
- Other Name: SWITCH, Coolant Temperature (Engine Unit)
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1985-1986 Chevrolet Blazer | 1/2 TON | 8 Cyl 5.0L, 8 Cyl 5.7L
View related parts
Chevrolet Blazer Switch Asm,Engine Coolant Temperature Indicator
Part Number: 25037175
Product Specifications
- Other Name: SWITCH, Coolant Temperature (Engine Unit); Temperature Sending Unit
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1985-1986 Chevrolet Blazer | 1/2 TON | 8 Cyl 5.0L, 8 Cyl 5.7L
View related parts
Chevrolet Blazer Sensor, Temperature
Part Number: 14094773
Product Specifications
- Other Name: SWITCH
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1985-1989 Chevrolet Blazer | 1/2 TON | 8 Cyl 5.7L
View related parts
Chevrolet Blazer Sensor,Engine Coolant Temperature Gage
Part Number: 12554145
Product Specifications
- Other Name: SENSOR, Coolant Temperature (Engine Unit); Temperature Sending Unit
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1996-1999 Chevrolet Blazer | 2 DOOR, 4 DOOR | 6 Cyl 4.3L
View related parts
Chevrolet Blazer Sensor Assembly, Engine Coolant Temperature
Part Number: 25037345
Product Specifications
- Other Name: SENSOR, Coolant Temperature (Engine Unit); Temperature Sending Unit
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1987-1991 Chevrolet Blazer | 1/2 TON | 8 Cyl 5.7L, 8 Cyl 6.2L Diesel

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1-20 of 21 Results

Chevrolet Blazer Coolant Temperature Sensor

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.

Each OEM Chevrolet Blazer 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 Blazer Coolant Temperature Sensor Parts Questions & Experts Answers

Sensor,Engine Coolant Temperature Gage
12554145
Q: How to check and replace Camshaft Position Sensor,Coolant Temperature Sensor,Crankshaft Position Sensor,Intake Manifold Temperature Sensor,Knock Sensor,Oxygen Sensor,Vehicle Speed Sensor,Neutral Safety Switch,MAP Sensor and Throttle Position Sensor on Chevrolet Blazer,S10,GMC Jimmy and Sonoma?
A: Various engine sensors and components have checking procedures,the engine coolant temperature (ECT) sensor is a thermistor that changes resistance with temperature, and a failure in the circuit can cause trouble codes. The resistance should be measured when cold and warm while ensuring reference voltage from PCM is around 5.0 volts for the verification. Manifold Absolute Pressure (MAP) Sensor monitors changes in intake manifold pressure then varies its voltage output accordingly. Look at the reference voltage and signal voltage with the ignition on and engine off, and observe voltage changes as the engine's vacuum changes. Intake Air Temperature (IAT) Sensor acts as a thermistor where you can measure its resistance at different temperatures to make sure it changes as expected. Also, use a scan tool to monitor the IAT sensor for performance. The oxygen sensor in exhaust detects oxygen content which you can check its millivolt signal while warming up your engine. Check whether the oxygen sensor heater has correct voltage or not. Vehicle Speed Sensor (VSS) provides speed data to PCM which can be checked for reference voltage. Depending on the type of engine, Camshaft Sensor and Crankshaft Sensor should be checked for resistance and proper signal output. Finally, Knock Sensors detect engine knock which should be checked for reference voltage and resistance. If any component fails these checks, replacement may be necessary.
Sensor,Engine Coolant Temperature Gage
25037332
Q: How to remove the defective sending unit on Chevrolet Blazer,S10,GMC Jimmy and Sonoma?
A: Ensure the engine is cool before removing the defective sending unit. Be prepared to catch some coolant loss as the unit is removed. Coat the threads of the new sending unit with sealant. Disconnect the electrical connector and unscrew the old sensor from the engine and install the replacement. After the replacement unit has been installed, check the coolant level and top up the system, if necessary. Now, check for proper operation of the gauge and sending unit.