How to service the Coolant Temperature Sensor/Switch on Chevrolet Express 3500?

To service the Coolant Temperature Sensor/switch, one can disconnect the negative Battery Cable and take off the air cleaner assembly. Do not try to remove the Radiator Cap or surge tank cap when the motor is hot in order to prevent being scalded by burning liquid and steam. Relieve the pressure in the cooling system and drain the cooling system below the engine coolant temperature (ECT) sensor. Remove the ect sensor connecting harness and the ect sensor. For installation, apply sealer to threads of a new ect sensor (GM P/N 9985253, or equivalent) and install it with 13 n.m (10 lb ft). Connect the ect sensor harness connector, refill the cooling system, install the air cleaner assembly, and finally connect the negative Battery Cable.

OEM Chevrolet Express 3500 Coolant Temperature Sensor

Coolant Water Temperature Sensor

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9 Coolant Temperature Sensors found

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Chevrolet Express 3500 Coolant Temperature Sensor, Silver Part Number: 55591002
$10.62 MSRP: $19.94
You Save: $9.32 (47%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Sensor, Computer Control Sensors; Temperature Sensor; Coolant Temperature Sensor Package; Computer Control Sensors
- Replaces: 89019319, 55563530
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2010-2014 Chevrolet Express 3500 | Base, LS, LT | 8 Cyl 4.8 L FLEX, 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L FLEX
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Chevrolet Express 3500 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:
- 1996-2002 Chevrolet Express 3500 | Base, LS | 8 Cyl 6.5 L DIESEL
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Chevrolet Express 3500 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:
- 2006-2010, 1996-2002 Chevrolet Express 3500 | Base, LS | 6 Cyl 4.3 L GAS, 8 Cyl 5.7 L BI-FUEL, 8 Cyl 5.7 L CNG, 8 Cyl 5.7 L GAS, 8 Cyl 6.5 L DIESEL, 8 Cyl 6.6 L DIESEL, 8 Cyl 7.4 L GAS, 8 Cyl 8.1 L GAS
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Chevrolet Express 3500 Coolant Temperature Sensor, Black Part Number: 12608814
$30.66 MSRP: $57.58
You Save: $26.92 (47%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Sensor Assembly-Engine Coolant Temperature *Ite Or Black; Engine Coolant Temperature Sensor; Temperature Sensor; Temperature Sending Unit; Coolant Temperature Sensor; Engine Oil Pressure/Temperature Sensor; Computer Control Sensors
- Replaces: 15369305, 25037062, 12191170, 15326388
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2003-2020 Chevrolet Express 3500 | Base, LS, LT | 8 Cyl 4.8 L FLEX, 8 Cyl 4.8 L GAS, 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L FLEX, 8 Cyl 6.0 L GAS, 8 Cyl 6.6 L DIESEL
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Chevrolet Express 3500 Coolant Temperature Sensor Part Number: 25186240
$16.91 MSRP: $31.75
You Save: $14.84 (47%)
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Product Specifications
- Other Name: Sensor, Computer Control Sensors; Engine Coolant Temperature Sensor; Air Charge Temperature Sensor; Temperature Sensor; Air Temperature Sensor; Sensor, Coolant Temperature (Engine Unit)
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2018-2024 Chevrolet Express 3500 | Base, LS, LT | 6 Cyl 4.3 L FLEX, 6 Cyl 4.3 L GAS, 8 Cyl 6.6 L GAS
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Chevrolet Express 3500 Coolant Temperature Sensor Part Number: 90570185
$22.95 MSRP: $43.10
You Save: $20.15 (47%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Sensor, Engine Coolant Temperature; Engine Coolant Temperature Sensor; Temperature Sensor; Sensor, Coolant Temperature (Engine Unit); Sensor, Computer Control Sensors
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2017-2022 Chevrolet Express 3500 | Base, LS, LT | 4 Cyl 2.8 L DIESEL
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Chevrolet Express 3500 Coolant Temperature Sensor Part Number: 12554944
$205.54 MSRP: $417.47
You Save: $211.93 (51%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Sensor Assembly-Engine Coolant Temperature (W/ Engine Coolant T; Engine Coolant Temperature Sensor; Temperature Sending Unit; Sensor; Sensor, Coolant Temperature (Engine Unit); Sensor, Computer Control Sensors
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2001-2002 Chevrolet Express 3500 | Base, LS | 8 Cyl 8.1 L GAS
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Chevrolet Express 3500 Temperature Sending Unit Part Number: 12554253
Product Specifications
- Other Name: Sensor, Coolant Temperature (Engine Unit)
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1996-2000 Chevrolet Express 3500 | Base, LS | 8 Cyl 7.4 L GAS
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Chevrolet Express 3500 Fan Switch Part Number: 12556263
Product Specifications
- Other Name: Sensor, Coolant Temperature (Engine Unit); Temperature Sending Unit
- Replaces: 12554641
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1996-2002 Chevrolet Express 3500 | Base, LS | 8 Cyl 5.7 L GAS

Chevrolet Express 3500 Coolant Temperature Sensor

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Chevrolet Express 3500 Coolant Temperature Sensor Parts Questions & Experts Answers

Coolant Temperature Sensor
25037332
Q: How to service the Coolant Temperature Sensor/Switch on Chevrolet Express 3500?
A:
To service the Coolant Temperature Sensor/switch, one can disconnect the negative Battery Cable and take off the air cleaner assembly. Do not try to remove the Radiator Cap or surge tank cap when the motor is hot in order to prevent being scalded by burning liquid and steam. Relieve the pressure in the cooling system and drain the cooling system below the engine coolant temperature (ECT) sensor. Remove the ect sensor connecting harness and the ect sensor. For installation, apply sealer to threads of a new ect sensor (GM P/N 9985253, or equivalent) and install it with 13 n.m (10 lb ft). Connect the ect sensor harness connector, refill the cooling system, install the air cleaner assembly, and finally connect the negative Battery Cable.