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Home >> Suzuki >> 2003 >> Grand Vitara 4WD, Standard >> Repair and Diagnosis >> Engine Performance >> Fuel Delivery >> Fuel System >> Repair Instructions >> Fuel Injector Removal and Installation >> Installation
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Fuel Injector Removal and Installation: Installation

  1. Replace injector O-ring (1) with new one using care not to damage it. Install grommet (2) to injector.
    Fig 1: Installing Injector O-Ring & Grommet
    G01478908Courtesy of SUZUKI OF AMERICA CORP.
  2. Check if insulator (1) is scored or damaged. If it is, replace with new one. Install insulators and cushions (2) to intake manifold.
    Fig 2: Installing Insulators & Cushions To Intake Manifold
    G01478909Courtesy of SUZUKI OF AMERICA CORP.
  3. Apply thin coat of fuel to O-rings (1) and then install injectors into delivery pipes (right and left) and intake manifold.

    Make sure that injectors rotate smoothly. If not, probable cause is incorrect installation of O-ring or grommet (2). Replace O-ring with new one.

  4. Tighten delivery pipe bolts (3) and make sure that injectors rotate smoothly.
    Fig 3: Tightening Delivery Pipe Bolts & Ensuring Injectors Rotate Smoothly
    G01478910Courtesy of SUZUKI OF AMERICA CORP.
  5. Install fuel connect pipe (1) and tighten union bolts to specified torque with new gaskets (3).

    Tightening torque 

    1. Fuel connect pipe union bolt (b):  30 N.m (3.0 kg-m, 22.0 lb-ft)
  6. Install fuel feed pipe (2) and tighten union bolt to specified torque with new gaskets.

    Tightening torque 

    1. Fuel feed pipe union bolt (a):  30 N.m (3.0 kg-m, 22.0 lb-ft)
  7. Connect vacuum hose (5) and fuel return hose (4) to fuel pressure regulator.
    Fig 4: Installing Fuel Delivery Components
    G01478911Courtesy of SUZUKI OF AMERICA CORP.
  8. Connect fuel feed hose (1) and fuel return hose (2).
  9. Connect connectors of injector wire (3) to injectors.
  10. Install throttle body and intake collector referring to THROTTLE BODY & INTAKE MANIFOLD .
  11. With engine "OFF" and ignition switch "ON", check for fuel leaks around fuel line connection.
    Fig 5: Connecting Injector Connectors
    G01478912Courtesy of SUZUKI OF AMERICA CORP.