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HOMESERVICE MANUALSTOYOTA2004MATRIX XR, FWD, STANDARDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 954 (3.5L ENGINE (SERVICE INFORMATION))INTAKE MANIFOLDREMOVALREMOVAL - UPPER INTAKE MANIFOLD
2004 Toyota Matrix XR, FWD, Standard

Removal - Upper Intake Manifold

2004 Toyota Matrix XR, FWD, StandardSECTION Removal - Upper Intake Manifold
WARNING: This page is about a different car, the 2004 Chrysler Pacifica. However, it is still accessible from the selected car via links, so may be relevant.
  1. Disconnect negative battery cable.
  2. Remove air cleaner housing and inlet hose.
  3. Remove engine cover.
  4. Remove throttle and speed control cables from throttle arm and bracket (Refer to FUEL INJECTION ).
  5. Remove the two cable bracket retaining bolts and position the cables and bracket assembly out of the way.
  6. Remove the oil fill tube to upper intake manifold retaining bolt (Fig 1 ).
    Fig 1: Locating Oil Level Indicator And Fill Tube
    G03572593Courtesy of DAIMLERCHRYSLER CORP.
  7. Remove the oil level tube to upper intake manifold retaining bolt (Fig 1 ).
  8. Disconnect electrical connectors from the following sensors and actuators:
    • Manifold Tuning Valve (MTV)
    • Short Runner Valve
    • Exhaust Gas Recirculation (EGR)
    • Throttle Position Sensor (TPS)
    • Idle Air Control (IAC)
    • Manifold Absolute Pressure (MAP)
  9. Remove alternator support bracket (Fig 2 ).
    Fig 2: Identifying Upper Intake Manifold Components
    G03572594Courtesy of DAIMLERCHRYSLER CORP.
  10. Disconnect the EGR tube (Refer to EXHAUST GAS RECIRCULATION ).
  11. Disconnect vacuum hoses from the following (Fig 2 ):
    • Positive Crankcase Ventilation (PCV) Valve
    • EVAP Purge Solenoid
    • Power Brake Booster
  12. Remove the front and rear intake manifold support brackets (Fig 3 ). (Fig 4 )
    Fig 3: Identifying Upper Intake Manifold - Right Components
    G03572595Courtesy of DAIMLERCHRYSLER CORP.
RENDER: 1.0x

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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.