How should the Coolant Temperature Sensor be handled and installed to ensure proper operation of the fuel injection system on Hyundai Sonata?

Handle the ECT sensor with care, as damage will affect the operation of the entire fuel injection system. The ECT sensor is located at the driver's end of the engine near the thermostat housing for 2010 and earlier models. Begin by disconnecting the cable from the negative battery terminal and partially draining the cooling system. Next, disconnect the electrical connector from the ECT sensor, unscrew the sensor from the coolant passage, and avoid sealing the threads of the new sensor with Teflon tape, as this will interfere with grounding; instead, apply a small amount of liquid sealer to the threads before installation. Installation is the reverse of removal, ensuring the sensor is tightened securely, followed by refilling the cooling system. For 2011 and later models, the ECT sensor is located on the back side of the cylinder head. Remove the spring clip and pull the sensor from the coolant temperature control housing, then install the new sensor in reverse order, securing it with the spring clip and refilling the cooling system afterward.

Genuine Hyundai Sonata Coolant Temperature Sensor

Coolant Water Temperature Sensor

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14 Coolant Temperature Sensors found

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Hyundai Sonata Sensor & G/UNIT-Water TEMPERTURE
Part Number: 39220-38030
$57.77 MSRP: $80.47
You Save: $22.70 (29%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Sensor & G/Unit-Water Temperature; Coolant Temperature Sensor, Temperature Sensor
- Replaces: 39230-26700, 39220-38020
- Warranty: This genuine part is guaranteed by Hyundai's factory warranty.
Fits the following Vehicles:
- 2015-2019 Hyundai Sonata | DOHC - TCI/GDI | Sedan - 4Door 5P
- 1998-2010 Hyundai Sonata | High Grade, Middle Grade | DOHC - MPI | 4 Door, 4 Door Sedan, Sedan - 4Door 5P
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Hyundai Sonata Sensor & G/UNIT-Water TEMPERTURE
Part Number: 39220-38010
$56.56 MSRP: $78.77
You Save: $22.21 (29%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Sensor & G/Unit-Water Temperature
- Warranty: This genuine part is guaranteed by Hyundai's factory warranty.
Fits the following Vehicles:
- 2007-2019 Hyundai Sonata | DOHC - GDI, DOHC - MPI, DOHC - TCI/GDI | Sedan - 4Door 5P
View related parts
Hyundai Sonata Sensor & G/UNIT-Water TEMPERTURE
Part Number: 39220-38020
$57.77 MSRP: $80.47
You Save: $22.70 (29%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Sensor & G/Unit-Water Temperature
- Replaced by: 39220-38030
- Warranty: This genuine part is guaranteed by Hyundai's factory warranty.
Fits the following Vehicles:
- 1998-2005 Hyundai Sonata | High Grade, Middle Grade | 4 Door, 4 Door Sedan
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Hyundai Sonata Sensor Assembly-Water Temperature
Part Number: 39220-35710
$49.56 MSRP: $69.03
You Save: $19.47 (29%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Coolant Temperature Sensor, Temperature Sensor
- Replaces: 39220-35700
- Warranty: This genuine part is guaranteed by Hyundai's factory warranty.
Fits the following Vehicles:
- 1998-2005 Hyundai Sonata | High Grade, Middle Grade | 4 Door, 4 Door Sedan
View related parts
Hyundai Sonata Sensor Assembly-Water Temperature
Part Number: 39220-2M425
$29.53 MSRP: $41.13
You Save: $11.60 (29%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Coolant Temperature Sensor
- Warranty: This genuine part is guaranteed by Hyundai's factory warranty.
Fits the following Vehicles:
- 2020-2023 Hyundai Sonata | DOHC - GDI, DOHC - TCI/GDI | Sedan - 4Door 5P
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Hyundai Sonata Sensor-Water Temperature
Part Number: 39220-2U001
$21.38 MSRP: $27.62
You Save: $6.24 (23%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Sensor, Temperature Sensor
- Warranty: This genuine part is guaranteed by Hyundai's factory warranty.
Fits the following Vehicles:
- 2020-2023 Hyundai Sonata | DOHC - GDI, DOHC - TCI/GDI | Sedan - 4Door 5P
View related parts
Hyundai Sonata Sensor Assembly-Water Temperature
Part Number: 39220-21320
$45.09 MSRP: $62.81
You Save: $17.72 (29%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Manufacturer Note: KONGHWA
- Replaced by: 39220-21330
- Warranty: This genuine part is guaranteed by Hyundai's factory warranty.
Fits the following Vehicles:
- 1988-1998 Hyundai Sonata | High Grade, Middle Grade | 4 Door
View related parts
Hyundai Sonata Sensor-Water Temperature
Part Number: 97229-38000
$68.83 MSRP: $96.71
You Save: $27.88 (29%)
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 Hyundai's factory warranty.
Fits the following Vehicles:
- 1998-2001 Hyundai Sonata | High Grade, Middle Grade | 4 Door
View related parts
Hyundai Sonata Sensor Assembly-Water Temperature
Part Number: 39220-2M450
$42.56 MSRP: $59.27
You Save: $16.71 (29%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Coolant Temperature Sensor
- Warranty: This genuine part is guaranteed by Hyundai's factory warranty.
Fits the following Vehicles:
- 2020-2023 Hyundai Sonata | DOHC - TCI/GDI | Sedan - 4Door 5P
View related parts
Hyundai Sonata Sensor Assembly-Water Temperature
Part Number: 39220-2S000
$20.17 MSRP: $26.06
You Save: $5.89 (23%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Sensor, Temperature Sensor
- Warranty: This genuine part is guaranteed by Hyundai's factory warranty.
Fits the following Vehicles:
- 2020-2023 Hyundai Sonata | DOHC - GDI, DOHC - TCI/GDI | Sedan - 4Door 5P
View related parts
Hyundai Sonata Sensor Assembly-Water Temperature
Part Number: 39220-35510
$34.22 MSRP: $47.66
You Save: $13.44 (29%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Manufacturer Note: KONGHWA
- Replaced by: 39220-35520
- Warranty: This genuine part is guaranteed by Hyundai's factory warranty.
Fits the following Vehicles:
- 1993-1998 Hyundai Sonata | High Grade, Middle Grade | 4 Door
View related parts
Hyundai Sonata Sensor Assembly-Water Temperature
Part Number: 39220-35520
$34.22 MSRP: $47.66
You Save: $13.44 (29%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Coolant Temperature Sensor
- Manufacturer Note: KOREA ELECTRON
- Replaces: 39220-35510
- Warranty: This genuine part is guaranteed by Hyundai's factory warranty.
Fits the following Vehicles:
- 1993-1998 Hyundai Sonata | High Grade, Middle Grade | 4 Door
View related parts
Hyundai Sonata Sensor Assembly-Water Temperature
Part Number: 39220-21310
$45.09 MSRP: $62.81
You Save: $17.72 (29%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Replaced by: 39220-21330
- Warranty: This genuine part is guaranteed by Hyundai's factory warranty.
Fits the following Vehicles:
- 1988-1993 Hyundai Sonata | High Grade, Middle Grade | 4 Door
View related parts
Hyundai Sonata Sensor Assembly-Water Temperature
Part Number: 39220-21330
Product Specifications
- Other Name: Coolant Temperature Sensor, Temperature Sensor
- Manufacturer Note: KOREA ELECTRON
- Replaces: 39220-21300, 39220-21320, 39220-21310
- Warranty: This genuine part is guaranteed by Hyundai's factory warranty.
Fits the following Vehicles:
- 1988-1998 Hyundai Sonata | High Grade, Middle Grade | 4 Door

Hyundai Sonata Coolant Temperature Sensor

The Hyundai Sonata Coolant Temperature Sensor has been developed to provide the engine computer with accurate readings of the heat so that the car can run smoothly and prevent overheating. Threaded into a coolant passage, this type of thermistor called Coolant Temperature Sensor changes resistance as the liquid warms, sending a variable voltage signal back to the Hyundai ECM. With that data, the module enriches fuel for cold starts, leans fuel as heat builds, tweaks timing, increases cold idle, and turns the electric fan on only when needed, protecting components through relay controlled switching inside any Sonata engine bay. Earlier generations applied simple coolant switches that turned on or off, but modern versions use a negative temperature coefficient thermistor for full range feedback and finer control. While styling has changed over the years of Hyundai Sonata models, the basic two wire five volt reference layout of the Coolant Temperature Sensor remains unchanged, with connectors or thread pitch being the primary changes. Because the Coolant Temperature Sensor is constantly reporting to the computer, systems such as EGR, evap purge, and torque converter lockup wait until the engine is warm before the performance, economy, and emissions goals of every Hyundai Sonata are met. A failed Coolant Temperature Sensor can therefore disrupt fuel mix and fan operation.

If you are looking for affordable high-quality OEM Hyundai Sonata Coolant Temperature Sensor, then you have come to the prime place. Our website provides a large amount of genuine Hyundai Sonata Coolant Temperature Sensor at unbeatable prices. All our parts come backed with the manufacturer's warranty.

Hyundai Sonata Coolant Temperature Sensor Parts Questions & Experts Answers

Sensor & G/UNIT-Water TEMPERTURE
39220-38030
Q: How should the Coolant Temperature Sensor be handled and installed to ensure proper operation of the fuel injection system on Hyundai Sonata?
A:
Handle the ECT sensor with care, as damage will affect the operation of the entire fuel injection system. The ECT sensor is located at the driver's end of the engine near the thermostat housing for 2010 and earlier models. Begin by disconnecting the cable from the negative battery terminal and partially draining the cooling system. Next, disconnect the electrical connector from the ECT sensor, unscrew the sensor from the coolant passage, and avoid sealing the threads of the new sensor with Teflon tape, as this will interfere with grounding; instead, apply a small amount of liquid sealer to the threads before installation. Installation is the reverse of removal, ensuring the sensor is tightened securely, followed by refilling the cooling system. For 2011 and later models, the ECT sensor is located on the back side of the cylinder head. Remove the spring clip and pull the sensor from the coolant temperature control housing, then install the new sensor in reverse order, securing it with the spring clip and refilling the cooling system afterward.

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