2009 Lexus LS 460L AWDFACTORY OEM SERVICE PROCEDURE

Throttle Body: Installation

  1. INSTALL THROTTLE BODY ASSEMBLYΒ 
    1. Install a new gasket to the intake manifold.

      HINT:

      Align the protrusion of the gasket with the groove on the intake manifold.

      Fig 1: Aligning Protrusion Of Gasket With Groove On Intake Manifold
      G06190150Courtesy of Β© TOYOTA, LICENSE AGREEMENT TMS1002
    2. Connect the No. 4 and No. 5 water by-pass hoses to the throttle body.
      NOTE:
      • Position the claws of the clamps as shown in the illustration.
      • Install the clamps so that they are within the hose's paint marks.
Factory Service Tools

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.

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