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HOMESERVICE MANUALSOLDSMOBILE2004BRAVADA AWDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 385 (ENGINE CONTROLS - REMOVAL & INSTALLATION)FUEL SYSTEMSFUEL RAIL & INJECTORSINSTALLATION
2004 Oldsmobile Bravada AWD

Fuel Rail & Injectors: Installation

2004 Oldsmobile Bravada AWDSECTION Installation
WARNING: This page is about a different car, the 2003 Oldsmobile Aurora. However, it is still accessible from the selected car via links, so may be relevant.
CAUTION: Use care when servicing the fuel system components, especially the fuel injector electrical connectors, the fuel injector tips, and the injector "O" rings. Plug the inlet and the outlet ports of the fuel rail in order to prevent contamination. Do not use compressed air to clean the fuel rail assembly as this may damage the fuel rail components. Do not immerse the fuel rail assembly in a solvent bath in order to prevent damage to the fuel rail assembly.
  1. Lubricate the NEW upper and lower injector "O" ring seals with clean engine oil. Install the NEW upper "O" ring. Install the fuel injector(s) on the fuel rail. Install the NEW lower "O" ring on the spray tip end of each injector. Install the fuel rail. Install the fuel rail attaching stud. Tighten the studs to specification. See TORQUE SPECIFICATIONS  .
  2. Connect the fuel injector electrical connectors to each fuel injector. Install the fuel rail bracket retainer nut. Tighten the nut to specification. Install the PCV valve to the valve cover. Install the coolant surge tank inlet pipe. Install the PCV air tube to the valve cover. Connect the fuel pressure regulator vacuum hose. Connect the fuel feed and return pipes to the fuel rail. Connect the negative battery cable.
  3. Inspect for leaks by using the following procedure.
    • Turn ignition on for 2 seconds.
    • Turn ignition off for 10 seconds.
    • Turn ignition on.
    • Check for fuel leaks.
  4. Fill the cooling system. See COOLING SYSTEM BLEEDING  under COOLING SYSTEM. Align and press the injector sight shield onto the mounting studs See Figure . Install the mounting nuts onto the mounting studs and tighten nuts.
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.