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Home >> Chevrolet >> 2017 >> Suburban 3500 HD LS >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Controls And Fuel - 6.0L (L96) - Repair Instructions >> Repair Instructions >> Fuel Tank Fuel Pump Module Replacement (Rear Tank) >> Installation Procedure
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Installation Procedure

    Fig 1: View Of Vapor Line Quick Connect Fittings (Rear Tank)
    GM1372821Courtesy of GENERAL MOTORS COMPANY
  1. Install a NEW fuel tank module seal onto the fuel tank.
  2. Pull the vent lines in the 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 fittings to the module. Refer to Plastic Collar Quick Connect Fitting Service .
  5. Install the module into the fuel tank.
  6. Place the lock ring into position.
  7. Fig 2: Rotating Lock Ring (Rear Tank)
    GM1372822Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    Always replace the fuel sender seal when installing the fuel sender assembly. Replace the lock ring if necessary. DO NOT apply any type of lubrication in the seal groove.

    Ensure the lock ring is installed with the correct side facing upward. A correctly installed lock ring will only turn in a clockwise direction.

  8. Rotate the lock ring counterclockwise using the J-45722  wrench until fully seated.
  9. Connect the EVAP line quick connect fittings to the fuel tank module. Refer to Plastic Collar Quick Connect Fitting Service .
  10. Install the rear fuel tank. Refer to Fuel Tank Replacement (Rear Tank) .