Fuel Sender Assembly: 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.
NOTE: When installing fuel sending unit assembly, do not fold or twist strainer. This will restrict fuel flow. Ensure that the fuel pump strainer does not block the full travel of the float arm. Always replace the fuel sender seal when reinstalling the fuel sender.
  1. Position the NEW fuel sender seal on the fuel tank. Install the fuel sender assembly. Using Fuel Sender Lock Nut Wrench (J-39765), install the fuel sender lock ring. Connect the quick-connect fittings at the fuel sender. See FUEL LINE DISCONNECT FITTINGS  .
  2. Connect the fuel sender electrical connector. Connect the fuel tank pressure sensor electrical connector. Add fuel to the fuel tank. Install the fuel tank filler cap. Reconnect 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. Install the fuel sender access panel. Install the fuel sender access panel bolts. Tighten fuel sender access panel bolts to specification. See TORQUE SPECIFICATIONS  . Install the rear compartment floor trim. 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.