Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2017 Subaru WRX BaseFACTORY OEM SERVICE PROCEDURE
Engine Coolant Temperature Sensor: Installation
WARNING: This page is about a different car, the 2022 Subaru WRX. However, it is still accessible from the selected car via links, so may be relevant.
- Place a new gasket and install the engine coolant temperature sensor.
Tightening torque:
16 N.m (1.6 kgf-m, 11.8 ft-lb)
- Connect the connector (B) to engine coolant temperature sensor and connect the connector (A) to the knock sensor.
- Install the connector (A) and clip (B).
- Install the clip (C), clip (D) and clip (E), and connect connector (A) and connector (B). (CVT model)
- Install the intercooler. Ref. to INTAKE (INDUCTION) (H4DOTC)>INTERCOOLER>INSTALLATION
- Connect the ground terminal to battery sensor. Ref. to REPAIR CONTENTS>NOTE>BATTERY
- Fill engine coolant. Ref. to COOLING (H4DOTC)>ENGINE COOLANT>REPLACEMENT>FILLING OF ENGINE COOLANT
Factory Service Tools
Use the Manual With the Right Hardware
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.