2017 Chevrolet Suburban 3500 HD LSFACTORY OEM SERVICE PROCEDURE

Installation Procedure

    Fig 1: View Of Fuel Tank Module Quick Connect Fitting
    GM1705662Courtesy of GENERAL MOTORS COMPANY
  1. Install the NEW fuel tank module seal onto the fuel tank.
  2. Pull the vent line in the fuel tank up as far as possible for ease of installation.
  3. Position the fuel tank module part way into the fuel tank.
  4. Connect the quick connect fitting (1) to the module cover. Refer to Plastic Collar Quick Connect Fitting ServiceΒ .
  5. Install the fuel tank module into the fuel tank.
  6. Place the lock ring into position.
  7. Fig 2: Identifying Lock Ring
    GM1642096Courtesy of GENERAL MOTORS COMPANY
Factory Service Tools

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.