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Home >> GMC >> 2003 >> Safari Van Cargo, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 948 (Engine Controls - 8.1L (Introduction)) >> Repair Instructions >> Evaporative Emission (EVAP) Hoses/Pipes Replacement - Engine/Chassis (Cab/Chassis) >> Installation Procedure

Installation Procedure

WARNING: This page is about a different car, the 2004 GMC Sierra, 2004 GMC Cab & Chassis Sierra, 2004 Chevrolet Silverado, and 2004 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
  1. Install the rear fuel line bundle.
    Fig 1: Rear Fuel Line Bundle (Cab/Chassis)
    GM1228198Courtesy of GENERAL MOTORS CORP.
  2. Install the rear fuel line bundle clip nuts.
    3. Fig 2: Fuel Feed And EVAP Quick Connect Fittings At Fuel Tank
    GM1228189Courtesy of GENERAL MOTORS CORP.
  3. Remove the caps from the fuel and balance lines at the fuel tank.
  4. Connect the fuel feed and pressure balance lines from the rear tank. Refer to Quick Connect Fitting(s) Service (Metal Collar) .
    5. Fig 3: View Of Fuel Feed And Pressure Balance Lines
    GM1228187Courtesy of GENERAL MOTORS CORP.
  5. Remove the caps from the fuel and balance lines at the fuel tank.
  6. Connect the fuel feed and pressure balance lines from the front tank. Refer to Quick Connect Fitting(s) Service (Metal Collar) .
  7. Install the fuel fill cap.
  8. Connect the negative battery cable. Refer to Battery Negative Cable Disconnect/Connect Procedure (Single Battery) or Battery Negative Cable Disconnect/Connect Procedure (Auxiliary Battery) in General Information.
  9. Perform the following procedure in order to inspect for leaks.
    1. Turn the ignition ON, with the engine OFF, for 2 seconds.
    2. Turn the ignition OFF for 10 seconds.
    3. Turn the ignition ON, with the engine OFF.
    4. Inspect for fuel leaks.
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