How to disconnect, remove, and replace the Engine Coolant Temperature (ECT) sensor in Lexus RX330?

Be careful with the ECT sensor in four-cylinder models as it affects the fuel injection system. It's on the left end of the cylinder head. Disconnect the negative battery cable, partially drain the cooling system, disconnect the sensor's electrical connector, and unscrew it. Apply Teflon tape to the threads and ensure secure tightening during installation. In V6 models, the ECT sensor is on the water outlet casting on 3.0L and 3.3L engines, and under the air filter housing on 3.5L engines. Disconnect the negative battery cable, partially drain the cooling system, and disconnect the sensor's electrical connector. Depending on the model, unscrew the sensor or remove the retaining clip and pull out the sensor. Ensure proper tightening or full seating before reinserting the clip. Refill the cooling system to finish.

Genuine Lexus RX330 Coolant Temperature Sensor

Coolant Water Temperature Sensor

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3 Coolant Temperature Sensors found

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Lexus RX330 Sensor, Water Temperature (For E.F.I.)
Part Number: 89422-35010
$63.39 MSRP: $80.49
You Save: $17.10 (22%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Coolant Temperature Sensor
- Manufacturer Note: P/N LABEL=8942235010
- Warranty: This genuine part is guaranteed by Lexus's factory warranty.
Fits the following Vehicles:
- 2004-2006 Lexus RX330 | STD | 6 Cyl 3.3L | 3MZFE; 3MZFE; MCU33L-AWAGKA, MCU33L-CWAGKA, MCU38L-AWAGKA, MCU38L-CWAGKA
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Lexus RX330 Sensor, Water Temperature (For E.F.I.)
Part Number: 89422-33030
$63.39 MSRP: $80.49
You Save: $17.10 (22%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Coolant Temperature Sensor, Temperature Sensor
- Manufacturer Note: (J)
- Warranty: This genuine part is guaranteed by Lexus's factory warranty.
Fits the following Vehicles:
- 2006 Lexus RX330 | STD | 6 Cyl 3.5L | 2GRFE; 2GRFE; GSU30L-AWAGKA, GSU30L-CWAGKA, GSU35L-AWAGKA, GSU35L-CWAGKA
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Lexus RX330 Sensor, Water Temperature (For E.F.I.)
Part Number: 89422-06010
$64.88 MSRP: $85.65
You Save: $20.77 (25%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Coolant Temperature Sensor, Temperature Sensor
- Manufacturer Note: (L)
- Warranty: This genuine part is guaranteed by Lexus's factory warranty.
Fits the following Vehicles:
- 2006 Lexus RX330 | STD | 6 Cyl 3.5L | 2GRFE; 2GRFE; GSU30L-CWAGKA, GSU35L-CWAGKA

Lexus RX330 Coolant Temperature Sensor

Coolant Temperature Sensor used in Lexus RX330 is a Key Control Index used by the vehicle to regulate the temperature of the coolant to enable efficient operation of the engine. This sensor supplies input data in terms of its readings to assist in controlling the engine power and fuel consumption. As you can see from the mentioned information, they failed to differentiate Coolant Temperature Sensors types/ styles in RX330 but stressed on the component's significance in determining engine conditions. Coolant temperature sensor accurately measures the coolant temperature hence helps to avoid situations where the vehicle gets overheated, which is fundamental in improving the vehicle reliability.

Should you need to purchase new auto parts for your vehicle, we strongly suggest you consider the genuine Lexus RX330 Coolant Temperature Sensor available on LexusPartsNow.com. Our OEM Lexus RX330 Coolant Temperature Sensor come with the reassurance of the manufacturer's warranty, a hassle-free return policy, and speedy delivery service, all at affordable prices online. Feel free to shop with confidence!

Lexus RX330 Coolant Temperature Sensor Parts Questions & Experts Answers

Sensor, Water Temperature (For E.F.I.)
89422-33030
Q: How to disconnect, remove, and replace the Engine Coolant Temperature (ECT) sensor in Lexus RX330?
A: Be careful with the ECT sensor in four-cylinder models as it affects the fuel injection system. It's on the left end of the cylinder head. Disconnect the negative battery cable, partially drain the cooling system, disconnect the sensor's electrical connector, and unscrew it. Apply Teflon tape to the threads and ensure secure tightening during installation. In V6 models, the ECT sensor is on the water outlet casting on 3.0L and 3.3L engines, and under the air filter housing on 3.5L engines. Disconnect the negative battery cable, partially drain the cooling system, and disconnect the sensor's electrical connector. Depending on the model, unscrew the sensor or remove the retaining clip and pull out the sensor. Ensure proper tightening or full seating before reinserting the clip. Refill the cooling system to finish.