2007 Scion tC Base, AutomaticFACTORY OEM SERVICE PROCEDURE

Throttle Body: Removal

  1. DRAIN ENGINE COOLANT (See  COOLANT  ) 
  2. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL 
    CAUTION: Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to prevent airbag and seat belt pretensioner activation.
  3. REMOVE ENGINE COVER 
    1. Remove the 2 nuts and engine cover.
      Fig 1: Locating Engine Cover Nuts
      G04869342Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  4. REMOVE AIR CLEANER CAP 
    1. Disconnect the mass air flow meter connector.
    2. Disconnect the purge VSV connector.
    3. Remove the wire harness clamp.
      Fig 2: Locating Wire Harness Clamp
      G04869343Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    4. Disconnect the No. 2 ventilation hose from the cylinder head cover.
      Fig 3: Locating No. 2 Ventilation Hose
      G04869344Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    5. Disconnect the purge line hose from the purge VSV.
      Fig 4: Locating Purge Line Hose
      G04869345Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    6. Disconnect the purge line hose from the throttle body.
      Fig 5: Disconnecting Purge Line Hose From Throttle Body
      G04869346Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    7. Lock the No. 1 air cleaner hose clamp, and then disconnect the No. 1 air cleaner hose from the throttle body.
      Fig 6: Locating No. 1 Air Cleaner Hose
      G04869347Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    8. Unfasten the 2 hook clamps, and then remove the air cleaner cap.
      Fig 7: Locating Hook Clamps
      G04869348Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    9. Remove the air cleaner filter element from the air cleaner case.
      Fig 8: Locating Air Cleaner Filter Element
      G04869349Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  5. REMOVE THROTTLE BODY 
    1. Disconnect the water by-pass hose from the throttle body.
      Fig 9: Locating Water By-Pass Hose
      G04869350Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Disconnect the No. 2 water by-pass hose from the throttle body.
      Fig 10: Locating No. 2 Water By-Pass Hose
      G04869351Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Disconnect the No. 1 throttle body hose from the throttle body.
      Fig 11: Locating No. 1 Throttle Body Hose
      G04869352Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    4. Disconnect the throttle position sensor and control motor connector.
    5. Remove the wire harness clamp.
    6. Remove the fuel tube from the clamp.
      Fig 12: Locating Fuel Tube From Clamp
      G04869353Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    7. Remove the 4 bolts, and then remove the fuel pipe support and throttle body.
      Fig 13: Locating Throttle Body Bolts
      G04869354Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    8. Remove the gasket from the intake manifold.
      Fig 14: Locating Intake Manifold Gasket
      G04869355Courtesy 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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