Installation Procedure

2006 Chevrolet Chevy Express G2500, Van Cargo, 6.6 2SECTION Installation Procedure
WARNING: This page is about a different car, the 2009 GMC Sierra, 2009 GMC Cab & Chassis Sierra, 2009 Chevrolet Silverado, and 2009 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: View Of Vent Hose To Differential Carrier Assembly
    GM834272Courtesy of GENERAL MOTORS CORP.
  1. Install the vent hose to the vehicle.
    • Route the vent hose the same way as when removed.
    • Ensure the hose is free of kinks and routes clear of sharp components.
    • Ensure the vent hose is not plugged.
  2. Connect the vent hose to the differential carrier assembly.
  3. Fig 2: Identifying Vent Hose & Wiring Bundle
    GM341716Courtesy of GENERAL MOTORS CORP.
  4. Install the vent hose (1) to the wiring bundle (2), S4WD axles only.
  5. Install the vent hose to the retainer clips, all axles.
  6. Install the engine shield, if equipped. Refer to Engine Shield Replacement .
  7. Lower the vehicle.
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:

  • 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.