2006 Toyota Matrix XRSFACTORY OEM SERVICE PROCEDURE

Throttle Body: Inspection

  1. INSPECT THROTTLE BODY ASSEMBLYΒ 
    1. Check the throttle body.
      1. Check that the throttle valve shaft is not rickety.
      2. Check that all ports are not clogged.
      3. Check that the throttle valve opens and closes smoothly.
      4. Check that there is no clearance between the throttle stop screw and throttle lever at the throttle valve closed position.
        NOTE: Do not touch the throttle stop screw.
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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