What is the purpose of the Engine Coolant Temperature (ECT) sensor on Chevrolet K1500?

The Engine Coolant Temperature (ECT) sensor is a thermistor, a resistor which varies the value of its resistance in accordance with temperature changes. The change in the resistance values will directly affect the voltage signal from the sensor to the ECM/PCM. As the sensor temperature increases, the resistance values will decrease and vice versa. Performing the following test will set a diagnostic trouble code and illuminate the Service Engine Soon light. Clear the diagnostic trouble code after performing the tests and making the necessary repairs. The engine coolant temperature sensor threads into a coolant passage at the front of the engine near the thermostat housing. Check the terminals in the connector and the wires leading to the sensor for looseness and breaks. Repair as required. Before checking the engine coolant temperature sensor, check the voltage supply and ground circuits from the ECM/PCM. Disconnect the electrical connector from the engine coolant temperature sensor and connect a voltmeter to the two terminals of the harness connector. Turn the ignition key On-the voltage should read approximately 5.0 volts. If the voltage is incorrect, check the wiring from the engine coolant temperature sensor to the ECM/PCM. If the circuits are good, have the ECM/PCM checked at a dealer service department or other properly equipped repair facility. With the ignition switch OFF, disconnect the electrical connector from the engine coolant temperature sensor. Using an ohmmeter, measure the resistance between the two terminals on the sensor while it is completely cold. Reconnect the electrical connector to the sensor, start the engine and warm it up until it reaches operating temperature, disconnect the connector and check the resistance again. Compare your measurements to the resistance chart. If the sensor resistance test results are incorrect, replace the engine coolant temperature sensor. A more accurate check may be performed by removing the sensor and suspending the tip of the sensor in a container of water. Heat the water on the stove while you monitor the resistance of the sensor. Wait until the engine is completely cool before beginning this procedure. Drain the cooling system. Disconnect the electrical connector from the sensor and carefully unscrew the sensor. Before installing the new sensor, wrap the threads with Teflon sealing tape to prevent leakage and thread corrosion. Installation is the reverse of removal.

Genuine Chevrolet K1500 Coolant Temperature Sensor

Coolant Water Temperature Sensor

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11 Coolant Temperature Sensors found

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Chevrolet K1500 Sensor,Engine Coolant Temperature
Part Number: 15326386
$27.06 MSRP: $51.06
You Save: $24.00 (47%)
Ships in 1-3 Business Days
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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:
- 1988-1999 Chevrolet K1500 | K1500 EXTENDED CAB LONG BOX, K1500 EXTENDED CAB STANDARD BOX, K1500 REGULAR CAB LONG BOX, K1500 REGULAR CAB STANDARD BOX | 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 K1500 Sensor,Engine Coolant Temperature Gage
Part Number: 25037332
$36.56 MSRP: $75.90
You Save: $39.34 (52%)
Ships in 1 Business Day
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Product Specifications
- Other Name: SENSOR, Coolant Temperature (Engine Unit)
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1990-1999 Chevrolet K1500 | K1500 EXTENDED CAB LONG BOX, K1500 EXTENDED CAB STANDARD BOX, K1500 REGULAR CAB LONG BOX, K1500 REGULAR CAB STANDARD BOX | 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 K1500 Sensor,Engine Coolant Temperature Gage
Part Number: 25037333
$35.40 MSRP: $66.80
You Save: $31.40 (48%)
Ships in 1-2 Business Days
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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:
- 1990-1995 Chevrolet K1500 | K1500 EXTENDED CAB LONG BOX, K1500 EXTENDED CAB STANDARD BOX, K1500 REGULAR CAB LONG BOX, K1500 REGULAR CAB STANDARD BOX | 6 Cyl 4.3L, 8 Cyl 5.0L, 8 Cyl 5.7L, 8 Cyl 6.2L Diesel
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Chevrolet K1500 Temperature Sender
Part Number: 25037346
$42.76 MSRP: $80.13
You Save: $37.37 (47%)
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Product Specifications
- Other Name: SENSOR, Coolant Temperature (Engine Unit)
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1988-1991 Chevrolet K1500 | K1500 EXTENDED CAB LONG BOX, K1500 EXTENDED CAB STANDARD BOX, K1500 REGULAR CAB LONG BOX, K1500 REGULAR CAB STANDARD BOX | 8 Cyl 6.2L Diesel
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Chevrolet K1500 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:
- 1988-1989 Chevrolet K1500 | K1500 EXTENDED CAB LONG BOX, K1500 EXTENDED CAB STANDARD BOX, K1500 REGULAR CAB LONG BOX, K1500 REGULAR CAB STANDARD BOX | 6 Cyl 4.3L, 8 Cyl 5.0L, 8 Cyl 5.7L, 8 Cyl 6.2L Diesel
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Chevrolet K1500 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:
- 1988-1992 Chevrolet K1500 | K1500 EXTENDED CAB LONG BOX, K1500 EXTENDED CAB STANDARD BOX, K1500 REGULAR CAB LONG BOX, K1500 REGULAR CAB STANDARD BOX | 6 Cyl 4.3L, 8 Cyl 5.0L, 8 Cyl 5.7L, 8 Cyl 6.2L Diesel
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Chevrolet K1500 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:
- 1988-1989 Chevrolet K1500 | K1500 EXTENDED CAB LONG BOX, K1500 EXTENDED CAB STANDARD BOX, K1500 REGULAR CAB LONG BOX, K1500 REGULAR CAB STANDARD BOX | 6 Cyl 4.3L, 8 Cyl 5.0L, 8 Cyl 5.7L, 8 Cyl 6.2L Diesel
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Chevrolet K1500 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:
- 1988-1989 Chevrolet K1500 | K1500 EXTENDED CAB LONG BOX, K1500 EXTENDED CAB STANDARD BOX, K1500 REGULAR CAB LONG BOX, K1500 REGULAR CAB STANDARD BOX | 6 Cyl 4.3L, 8 Cyl 5.0L, 8 Cyl 5.7L, 8 Cyl 6.2L Diesel
View related parts
Chevrolet K1500 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:
- 1996-1998 Chevrolet K1500 | K1500 EXTENDED CAB LONG BOX, K1500 EXTENDED CAB STANDARD BOX, K1500 REGULAR CAB LONG BOX, K1500 REGULAR CAB STANDARD BOX | 6 Cyl 4.3L
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Chevrolet K1500 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:
- 1988-1990 Chevrolet K1500 | K1500 EXTENDED CAB LONG BOX, K1500 EXTENDED CAB STANDARD BOX, K1500 REGULAR CAB LONG BOX, K1500 REGULAR CAB STANDARD BOX | 6 Cyl 4.3L, 8 Cyl 5.0L, 8 Cyl 5.7L, 8 Cyl 6.2L Diesel
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Chevrolet K1500 Sensor,Engine Coolant Temperature Gage
Part Number: 12556263
Product Specifications
- Other Name: SENSOR, Coolant Temperature (Engine Unit); Fan Switch, Temperature Sending Unit
- Replaces: 12554641
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1997-1999 Chevrolet K1500 | K1500 EXTENDED CAB LONG BOX, K1500 EXTENDED CAB STANDARD BOX, K1500 REGULAR CAB LONG BOX, K1500 REGULAR CAB STANDARD BOX | 8 Cyl 5.0L, 8 Cyl 5.7L

Chevrolet K1500 Coolant Temperature Sensor

Coolant Temperature Sensor is among the significant parts of Chevrolet K1500 vehicles since it is responsible for monitoring the temperature: the engine ought to run efficiently. Thus, with such sensor, one can get real-time temperatures that would aid in improving the efficiency of the engines. Quite different kinds of Coolant Temperature Sensor have been installed in K1500 models throughout the years, these Coolant Temperature Sensors all perform the same basic service for their engine but some might be made with different components or implemented with different technology. Some of these variations may include differences in the sensitivity or response time and these affects the transfer of temperature information to the engine control unit. In conclusion, Coolant Temperature Sensor is very essential for any vehicle in order to improve on its performance as well as its durability.

Each OEM Chevrolet K1500 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 K1500 Coolant Temperature Sensor Parts Questions & Experts Answers

Sensor,Engine Coolant Temperature Gage
25037333
Q: What is the purpose of the Engine Coolant Temperature (ECT) sensor on Chevrolet K1500?
A: The Engine Coolant Temperature (ECT) sensor is a thermistor, a resistor which varies the value of its resistance in accordance with temperature changes. The change in the resistance values will directly affect the voltage signal from the sensor to the ECM/PCM. As the sensor temperature increases, the resistance values will decrease and vice versa. Performing the following test will set a diagnostic trouble code and illuminate the Service Engine Soon light. Clear the diagnostic trouble code after performing the tests and making the necessary repairs. The engine coolant temperature sensor threads into a coolant passage at the front of the engine near the thermostat housing. Check the terminals in the connector and the wires leading to the sensor for looseness and breaks. Repair as required. Before checking the engine coolant temperature sensor, check the voltage supply and ground circuits from the ECM/PCM. Disconnect the electrical connector from the engine coolant temperature sensor and connect a voltmeter to the two terminals of the harness connector. Turn the ignition key On-the voltage should read approximately 5.0 volts. If the voltage is incorrect, check the wiring from the engine coolant temperature sensor to the ECM/PCM. If the circuits are good, have the ECM/PCM checked at a dealer service department or other properly equipped repair facility. With the ignition switch OFF, disconnect the electrical connector from the engine coolant temperature sensor. Using an ohmmeter, measure the resistance between the two terminals on the sensor while it is completely cold. Reconnect the electrical connector to the sensor, start the engine and warm it up until it reaches operating temperature, disconnect the connector and check the resistance again. Compare your measurements to the resistance chart. If the sensor resistance test results are incorrect, replace the engine coolant temperature sensor. A more accurate check may be performed by removing the sensor and suspending the tip of the sensor in a container of water. Heat the water on the stove while you monitor the resistance of the sensor. Wait until the engine is completely cool before beginning this procedure. Drain the cooling system. Disconnect the electrical connector from the sensor and carefully unscrew the sensor. Before installing the new sensor, wrap the threads with Teflon sealing tape to prevent leakage and thread corrosion. Installation is the reverse of removal.

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