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HOMESERVICE MANUALSCHEVROLET2006SUBURBAN C2500, 6.0 UREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1614 (ENGINE CONTROLS AND FUEL - 3.6L (LCS) - INTRODUCTION)REPAIR INSTRUCTIONSFUEL TANK FUEL PUMP MODULE REPLACEMENT - SECONDARYINSTALLATION PROCEDURE
2006 Chevrolet Suburban C2500, 6.0 U

Installation Procedure

2006 Chevrolet Suburban C2500, 6.0 USECTION Installation Procedure
WARNING: This page is about a different car, the 2009 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: Fuel Tank Module
    GM1884878Courtesy of GENERAL MOTORS CORP.
  1. If the secondary fuel tank fuel pump module was replaced, install the secondary fuel level sensor, if required. Refer to Secondary Fuel Level Sensor Replacement .
  2. Install a NEW fuel tank module O-ring seal (2) onto the fuel tank.
  3. Tilt the module toward the rear of the fuel tank to allow the fuel level sensor float arm to clear the tank opening. Install the module (1) into the fuel tank.
    4. Fig 2: Primary Fuel Tank Fuel Pump Module Suction Port
    GM1884877Courtesy of GENERAL MOTORS CORP.
  4. Align the arrow (2) on the primary fuel tank fuel pump module suction port to the arrow (1) on the secondary fuel tank fuel pump module. Install the primary fuel tank fuel pump module suction port to the secondary fuel tank fuel pump module.
    5. Fig 3: Fuel Tank Fuel Pump Module
    GM1884875Courtesy of GENERAL MOTORS CORP.
  5. Lower the fuel tank fuel pump module (2) into the fuel tank.
  6. Install the fuel tank module lock ring (1).
    7. Fig 4: Fuel Tank Wiring Harness
    GM1884873Courtesy of GENERAL MOTORS CORP.
  7. Install the CH-48482  to the fuel tank fuel pump module lock ring. See Special Tools .
  8. Using the CH-48482  and a long breaker bar, rotate the lock ring clockwise locking the fuel tank fuel pump module lock ring. See Special Tools .
  9. Remove the CH-48482  from the fuel tank fuel pump module lock ring. See Special Tools .
  10. Position the fuel tank wiring harness (1) to the module.
  11. Connect the fuel tank wiring harness electrical connector (2) to the secondary fuel tank fuel pump module.
  12. Install the fuel tank wiring harness to the retaining clip (3).
  13. Install the fuel tank. Refer to Fuel Tank Replacement .
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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.