How to check and replace the Coolant Temperature Sensor?

The temperature gauge relies on a sending unit in the engine's water passage. If the gauge reads HOT on a cold engine, check for a short circuit in the wiring. If the engine is warm but the gauge reads COLD, test the gauge by grounding the wire to the sending unit with the ignition On and engine OFF. To test the unit, disconnect the connector and use an ohmmeter from the sender's pin to an engine ground. Apply conductive sealant on the threads of the new unit, not Teflon tape. Disconnect the connector, replace the unit quickly, reconnect the connector, and test the gauge.

Genuine Acura TL Coolant Temperature Sensor

Coolant Water Temperature Sensor

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4 Coolant Temperature Sensors found

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Acura TL Engine Coolant Temperature Sensor (Denso)
Part Number: 37870-RTA-005
$44.47 MSRP: $62.02
You Save: $17.55 (29%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Sensor Assembly, Water Temperature (Denso)
- Warranty: This genuine part is guaranteed by Acura's factory warranty.
Fits for 2007-2014 Acura TL
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Acura TL Water Temperature (Tw5) Sensor Assembly
Part Number: 37870-PJ7-003
$73.99 MSRP: $103.80
You Save: $29.81 (29%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Sensor Assembly, Water Temperature (Tw5) (Matsushita) ; Coolant Temp Sensor; Coolant Temperature Sensor, Temperature Sensor
- Warranty: This genuine part is guaranteed by Acura's factory warranty.
Fits for 1995-1998 Acura TL
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Acura TL Water Temperature Sensor
Part Number: 37870-PNA-003
$61.40 MSRP: $85.63
You Save: $24.23 (29%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Sensor Assembly, Water Temperature (Keihin) ; Coolant Temp Sensor; Coolant Temperature Sensor, Temperature Sensor
- Warranty: This genuine part is guaranteed by Acura's factory warranty.
Fits for 2004-2006 Acura TL
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Acura TL Water Temperature Sensor Assembly (Hadsys)
Part Number: 37870-PK2-015
$74.00 MSRP: $103.81
You Save: $29.81 (29%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Sensor Assembly, Water Temperature (Hadsys) ; Coolant Temp Sensor
- Replaces: 37870-PK2-005
- Warranty: This genuine part is guaranteed by Acura's factory warranty.
Fits for 1999-2003 Acura TL

Acura TL Coolant Temperature Sensor

Coolant Temperature Sensor is an important part of Acura TL vehicle, which is responsible for measuring the exteremal temperature of coolant for efficient perfomance of the vehicle's engine. This is because the amount of heat that is transferred by the coolant is constantly monitored by this sensor, and hence it assists in maintaining the efficiency of the engine. Through the various model years of the Acura TL model line there have been Coolant Temperature Sensors with the various features and designs. These changes in the types of sensors have enabled improvements in the kind of monitoring and generally the engines.

We provide a broad range of OEM Acura TL Coolant Temperature Sensor at unbeatable prices on our website. For your OEM parts, You can count on the guaranteed quality, manufacturer's warranty, outstanding customer service, and prompt delivery. We look forward to your visit.

Acura TL Coolant Temperature Sensor Parts Questions & Experts Answers

Water Temperature Sensor Assembly (Hadsys)
37870-PK2-015
Q: How to check and replace the Coolant Temperature Sensor?
A: The temperature gauge relies on a sending unit in the engine's water passage. If the gauge reads HOT on a cold engine, check for a short circuit in the wiring. If the engine is warm but the gauge reads COLD, test the gauge by grounding the wire to the sending unit with the ignition On and engine OFF. To test the unit, disconnect the connector and use an ohmmeter from the sender's pin to an engine ground. Apply conductive sealant on the threads of the new unit, not Teflon tape. Disconnect the connector, replace the unit quickly, reconnect the connector, and test the gauge.