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 Avalon LimitedFACTORY OEM SERVICE PROCEDURE
Knock Sensor: Installation
- INSTALL KNOCK CONTROL SENSOR
- Install the 2 knock control sensors with the 2 bolts as shown in the illustration.
Torque: 20 N*m (204 kgf*cm, 15 ft.*lbf)
- Connect the 2 knock control sensor connectors.
- Install the 2 knock control sensors with the 2 bolts as shown in the illustration.
- INSTALL INTAKE MANIFOLD
- INSTALL INTAKE AIR SURGE TANK
- INSTALL AIR CLEANER CAP WITH AIR CLEANER HOSE
- CONNECT CABLE TO NEGATIVE BATTERY TERMINAL NOTE: When disconnecting the cable, some systems need to be initialized after the cable is reconnected (See INITIALIZATION ).
- ADD ENGINE COOLANT (See REPLACEMENT )
- INSPECT FOR COOLANT LEAK (See REPLACEMENT )
- INSPECT FOR FUEL LEAK (See ON-VEHICLE INSPECTION )
- INSTALL V-BANK COVER SUB-ASSEMBLY (See INSTALLATION )
- INSTALL COWL TOP PANEL OUTER (See INSTALLATION )
- INSTALL WINDSHIELD WIPER MOTOR & LINK ASSEMBLY (See INSTALLATION )
- CHECK FUNCTION OF THROTTLE BODY (See ON-VEHICLE INSPECTION )
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.