What is the purpose of the Coolant Temperature Sensor on 2005 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 2005 Chevrolet Trailblazer Coolant Temperature Sensor

Coolant Water Temperature Sensor

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2 Coolant Temperature Sensors found

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2005 Chevrolet Trailblazer Coolant Temperature Sensor
Part Number: 12608814
$32.16 MSRP: $60.68
You Save: $28.52 (47%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Sensor Assembly - Engine Coolant Temperature Ite Or Black
- Replaces: 15369305, 25037062, 12191170, 15326388
- Item Weight: 0.40 Pounds
- Item Dimensions: 2.8 x 1.6 x 0.8 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 12608814
- Warranty: This genuine part is guaranteed by GM's factory warranty.
More Info
Fits the following 2005 Chevrolet Trailblazer Submodels:
- 4 DOOR, 4 DOOR EXT | 8 Cyl 5.3L, 8 Cyl 6.0L
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2005 Chevrolet Trailblazer Engine Coolant Temperature Sensor
Part Number: 19244715
$46.49 MSRP: $81.56
You Save: $35.07 (43%)
Product Specifications
- Other Name: SENSOR, Computer Control Sensors
- Replaces: 12564512
- Item Weight: 0.40 Pounds
- Item Dimensions: 7.5 x 7.6 x 1.7 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 19244715
- Warranty: This genuine part is guaranteed by GM's factory warranty.
More Info
Fits the following 2005 Chevrolet Trailblazer Submodels:
- 4 DOOR, 4 DOOR EXT | 6 Cyl 4.2L

2005 Chevrolet Trailblazer Coolant Temperature Sensor

We are your prime source for competitively priced and high-quality OEM 2005 Chevrolet Trailblazer Coolant Temperature Sensor. We provide you with parts that will allow you to save a lot of money without sacrificing quality. All our OEM parts are backed by the manufacturer's warranty and shipped out at a swift rate.

2005 Chevrolet Trailblazer Coolant Temperature Sensor Parts Questions & Experts Answers

Q:
What is the purpose of the Coolant Temperature Sensor on 2005 Chevrolet Trailblazer?
Posted by Prime F.
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.
Answered by GM Parts Specialist Bob / Mar 17, 2025