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.
Inlet Engine Coolant Temperature Sensor
- Disconnect the ground terminal from battery sensor. Ref. to REPAIR CONTENTS>NOTE>BATTERY .
- Drain engine coolant. Ref. to COOLING (H4DO)>ENGINE COOLANT>REPLACEMENT>DRAINING OF ENGINE COOLANT .
- Remove the front exhaust pipe. Ref. to EXHAUST (H4DO)>FRONT EXHAUST PIPE>REMOVAL .
- Disconnect the connector (A) and disconnect the connector (B) from the chain cover.
- Remove the bolt (C) securing the harness stay, and remove the inlet engine coolant temperature sensor.
- Remove the inlet engine coolant temperature sensor from the harness stay.
Do not remove the inlet engine coolant temperature sensor harness from the harness stay unless replacing the inlet engine coolant temperature sensor.
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.
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