2008 Toyota Matrix Base, StandardFACTORY OEM SERVICE PROCEDURE

Throttle Body: Removal

  1. DISCONNECT BATTERY NEGATIVE TERMINAL 
  2. DRAIN ENGINE COOLANT  (See ON-VEHICLE INSPECTION )
  3. REMOVE CYLINDER HEAD COVER NO. 2 
    1. Remove the 2 nuts and 2 clips, then remove the cylinder head cover No. 2.
      Fig 1: Identifying Cylinder Head Cover No. 2
      G05192704Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  4. REMOVE AIR CLEANER CAP SUB-ASSEMBLY 
    1. Disconnect the mass air flow meter connector [A].
    2. Disconnect the VSV connector [B].
      3. Fig 2: Identifying VSV Connector
      G05192705Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Remove the 2 wire harness clamps [C].
    4. Disconnect the fuel vapor feed hose No. 1 [D] from the VSV.
      5. Fig 3: Identifying Fuel Vapor Feed Hose No. 1, 3 From VSV
      G05192706Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    5. Disconnect the fuel vapor feed hose No. 3 [E] from the VSV.
    6. Disconnect the ventilation hose No. 1 from the cylinder head cover.
      Fig 4: Identifying Ventilation Hose No. 1 To Cylinder Head Cover
      G05192707Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    7. Loosen the hose clamp bolt and air cleaner hose No. 1.
      Fig 5: Identifying Hose Clamp Bolt And Air Cleaner Hose No. 1
      G05192708Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    8. Remove the air cleaner cap together with the air cleaner hose.
      Fig 6: Identifying Air Cleaner Cap Together With Air Cleaner Hose
      G05192709Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  5. REMOVE THROTTLE BODY ASSEMBLY 
    1. Disconnect the throttle control motor connector.
      Fig 7: Identifying Throttle Control Motor Connector
      G05192710Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Disconnect the water by-pass hose [B] from the throttle body.
      3. Fig 8: Identifying Water By-Pass Hose
      G05192711Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Disconnect the water by-pass hose No. 2 [C] from the throttle body.
    4. Remove the 2 bolts and 2 nuts, then remove the throttle body.
      Fig 9: Identifying Throttle Body
      G05192712Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    5. Remove the gasket from the intake manifold.
      Fig 10: Identifying Gasket From Intake Manifold
      G05192713Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
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:

  • • 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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