2008 Lexus LS 600hLFACTORY OEM SERVICE PROCEDURE

Knock Sensor: Installation

HINT:

When viewed from the rear of the engine assembly, Bank 1 is on the left side and Bank 2 is on the right side.

  1. INSTALL KNOCK SENSOR 
    1. Install the 4 sensors with the 4 bolts so that the sensors are angled as shown in the illustration.

      Torque: 20 N*m (204 kgf*cm, 15 ft.*lbf) 

      HINT:

      The acceptable installation angle of the sensors is between 10° upwards and downwards from the horizontal position.

      Fig 1: Locating Knock Sensor And Bolts
      G05771266Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Connect the 4 sensor connectors.
  2. INSTALL SEPARATOR CASE 
    1. Install the separator case with the 4 bolts.

      Torque: 10 N*m (102 kgf*cm, 7 ft.*lbf) 

      Fig 2: Locating Separator Case And Bolts
      G04943090Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Connect the fuel pressure sensor connector.
      3. Fig 3: Identifying Fuel Pressure Sensor Connector
      G04943089Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  3. INSTALL NO. 4 FUEL PIPE SUB-ASSEMBLY  (See INSTALLATION )
  4. INSTALL NO. 1 ENGINE COVER SUB-ASSEMBLY  (See INSTALLATION )
  5. INSTALL NO. 2 ENGINE COVER SUB-ASSEMBLY  (See INSTALLATION )
  6. INSTALL NO. 2 ENGINE COVER SUB-ASSEMBLY LH  (See INSTALLATION )
  7. INSTALL INTAKE MANIFOLD 
    1. Install the intake manifold (see INSTALLATION ).
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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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