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.
2006 Lexus GS 430FACTORY OEM SERVICE PROCEDURE
Knock Sensor: Installation
- INSTALL KNOCK SENSOR
- Install the 2 knock sensors with the 2 nuts, as shown in the illustration.
Torque: 20 N*m (204 kgf*cm, 15 ft.*lbf)
- Connect the 2 knock sensor connectors.
- Install the 2 knock sensors with the 2 nuts, as shown in the illustration.
- INSTALL INTAKE MANIFOLD ASSEMBLY
- Install the intake manifold (ON-VEHICLE INSPECTION ).
- CONNECT CABLE TO NEGATIVE BATTERY TERMINAL
- PERFORM INITIALIZATION
- Perform initialization (INITIALIZATION
).NOTE: Certain systems need to be initialized after disconnecting and reconnecting the cable from the negative (-) battery terminal.
- Perform initialization (INITIALIZATION
).
- ADD ENGINE COOLANT ( ON-VEHICLE INSPECTION )
- CHECK FOR ENGINE COOLANT LEAKS
- Check for engine coolant leaks (ON-VEHICLE INSPECTION ).
- CHECK FOR FUEL LEAKS ( REMOVAL )
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.