2006 Scion xB AutomaticFACTORY OEM SERVICE PROCEDURE

Throttle Body: Inspection

  1. INSPECT THROTTLE BODY ASSEMBLYΒ 
    1. Inspect that the throttle valve shaft is not rickety.
    2. Inspect that all ports are not clogged.
    3. Inspect that the throttle valve opens and closes smoothly.
    4. Inspect that there is no clearance between the throttle stop screw and throttle lever at throttle valve closed position.
      Fig 1: Inspecting Clearance Between Throttle Stop Screw
      G04225750Courtesy of Β© 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:

  • 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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