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.

2008 Scion tC Base, StandardFACTORY OEM SERVICE PROCEDURE

Engine Coolant Temperature Sensor: Installation

INSTALL ENGINE COOLANT TEMPERATURE SENSOR
1. Install a new gasket onto the sensor.
2. Using SST, install the sensor.
  SST 09817-33190
  
  Torque: 19.6 N*m (200 kgf*cm, 14 ft.*lbf)
  
  Fig 1: Identifying Engine Coolant Temperature Sensor
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
3. Connect the sensor connector.
CONNECT CABLE TO NEGATIVE BATTERY TERMINAL
ADD ENGINE COOLANT (See ON-VEHICLE INSPECTION )
CHECK FOR COOLANT LEAKAGE (See ON-VEHICLE INSPECTION )
PERFORM INITIALIZATION
1. Perform initialization (see INITIALIZATION ).
  NOTE: Certain systems need to be initialized after disconnecting and reconnecting the cable from the negative (-) battery terminal.

Chapter Navigation

Return to Chapter: Engine Coolant Temperature Sensor

Factory Service Tools

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.

Shop Manual-Ready Tools Compare Repair Quote Quote Shield Pro

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.