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Home >> Suzuki >> 2012 >> Equator Base >> Repair and Diagnosis >> Engine Mechanical >> Engine Mechanical - Qr25DE >> Repair Instructions >> Intake Manifold: Removal and Installation >> Removal
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Intake Manifold: Removal and Installation: Removal

  1. Release fuel pressure. Refer to [FUEL PRESSURE CHECK: QR25DE ]
  2. Disconnect battery negative terminal. Refer to [BATTERY: REMOVAL AND INSTALLATION ].
  3. Partially drain engine coolant. Refer to [CHANGING ENGINE COOLANT ].
  4. Remove air cleaner case, air cleaner filter and air duct and resonator assembly. Refer to Air Cleaner and Air Duct: Exploded View 
  5. Disconnect water hoses from electric throttle control actuator.
    CAUTION:
    • Perform this step when engine is cold.
    • Do not spill engine coolant on drive belt.
  6. Remove mass air flow sensor from intake manifold.
    CAUTION: Handle the mass air flow sensor with care:
    • Do not shock it.
    • Do not disassemble it.
    • Do not touch the internal sensor.
  7. Remove quick connector cap, and disconnect quick connector at the engine side. Refer to FUEL INJECTOR AND FUEL TUBE: REMOVAL AND INSTALLATION [QR25DE] .
    Fig 1: Identifying Quick Connector
    G06440688Courtesy of SUZUKI OF AMERICA CORP.
  8. Remove air duct. Refer to [Air Cleaner and Air Duct: Exploded View ].
  9. Remove electric throttle control actuator as follows:
    1. Disconnect harness connector.
    2. Loosen bolts in reverse order as shown, and remove electric throttle control actuator and gasket.
      Fig 2: Tightening Order Of Electric Throttle Control Actuator Bolts
      G06440689Courtesy of SUZUKI OF AMERICA CORP.
      CAUTION:
      • Handle carefully to avoid any shock to electric throttle control actuator.
      • Do not disassemble.
  10. Disconnect harness, vacuum hoses and PCV hoses from intake manifold, and move them aside.
  11. Remove intake manifold support.
  12. Loosen nuts and bolts in reverse order as shown, and remove intake manifold, fuel tube protector and gasket.
    Fig 3: Tightening Order Of Intake Manifold Nuts And Bolts
    G06440690Courtesy of SUZUKI OF AMERICA CORP.
    CAUTION:
    • Cover engine openings to avoid entry of foreign materials.
    • Do not disassemble intake manifold.
    NOTE: Disregard No. 6 when loosening.
  13. Remove EVAP canister purge volume control solenoid valve and vacuum hose adapter from intake manifold, if necessary.
  14. Disconnect sub-harness from fuel injector. Refer to FUEL INJECTOR AND FUEL TUBE: REMOVAL AND INSTALLATION [QR25DE] .
  15. Remove fuel tube and fuel injector assembly from intake manifold. Refer to FUEL INJECTOR AND FUEL TUBE: REMOVAL AND INSTALLATION [QR25DE] .
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