How to replace the Coolant Temperature Sensor on 2002 Chevrolet Trailblazer?

To replace the engine coolant temperature (ECT) sensor, you first shut off the engine, remove the negative battery terminal while weakening the coolant below the ect sensor. Remove the ect sensor electrical connector, similarly pull off the Drive Belt, generator and carefully remove the ect sensor . For installation if you are using the original sensor, or a new sensor, there is no need for a sealant, use thread sealer p/n 12346004 or equivalent. Install the ect sensor and tighten it to 16 n.m (12 lb ft) and then install the ect electrical connector. Replace the generator and the Drive Belt, connect the negative battery terminal, and add engine coolant.

OEM 2002 Chevrolet Trailblazer Coolant Temperature Sensor

Coolant Water Temperature Sensor

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2002 Chevrolet Trailblazer Coolant Temperature Sensor
Part Number: 19244715
$43.71 MSRP: $81.56
You Save: $37.85 (47%)
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Product Specifications
- Other Name: Sensor, Engine Coolant Temperature; Temperature Sending Unit; Sensor, Coolant Temperature (Engine Unit); 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 2002 Chevrolet Trailblazer Submodels:
- LS, LT, LTZ, North Face | 6 Cyl 4.2 L GAS

2002 Chevrolet Trailblazer Coolant Temperature Sensor

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2002 Chevrolet Trailblazer Parts Questions & Experts Answers

Q: How to replace the Coolant Temperature Sensor on 2002 Chevrolet Trailblazer?
A: To replace the engine coolant temperature (ECT) sensor, you first shut off the engine, remove the negative battery terminal while weakening the coolant below the ect sensor. Remove the ect sensor electrical connector, similarly pull off the Drive Belt, generator and carefully remove the ect sensor . For installation if you are using the original sensor, or a new sensor, there is no need for a sealant, use thread sealer p/n 12346004 or equivalent. Install the ect sensor and tighten it to 16 n.m (12 lb ft) and then install the ect electrical connector. Replace the generator and the Drive Belt, connect the negative battery terminal, and add engine coolant.

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2003 Chevrolet Trailblazer Coolant Temperature Sensor