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.

2009 Toyota Matrix Base, AutomaticFACTORY OEM SERVICE PROCEDURE

Engine Coolant Temperature Sensor: Installation

WARNING: This page is about a different variant/trim than selected.

INSTALL ENGINE COOLANT TEMPERATURE SENSOR
1. Install the engine coolant temperature sensor through a new gasket.
  Torque: 20 N*m (204 kgf*cm, 15 ft.*lbf)
  
  Fig 1: Locating Engine Coolant Temperature Sensor
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Connect the engine coolant temperature sensor connector.
INSTALL AIR CLEANER CASE (See INSTALLATION )
INSTALL AIR CLEANER CAP SUB-ASSEMBLY WITH HOSE (See INSTALLATION )
ADD ENGINE COOLANT (See COOLANT )
INSPECT FOR COOLANT LEAK (See COOLING SYSTEM )
INSTALL NO. 1 ENGINE COVER SUB-ASSEMBLY (See INSTALLATION )

Fig 2: Locating Engine Coolant Temperature Sensor Connector
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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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.