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Home >> GMC >> 2003 >> Safari Van Cargo, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1142 (Engine Controls - 6.0L - Alternative Fuels (Introduction)) >> Repair Instructions >> Fuel Hoses/Pipes Replacement - High Pressure Regulator (HPR) to Union >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2004 GMC Sierra and 2004 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.
    CAUTION: Refer to Compressed Natural Gas (CNG) Flammability Caution in Cautions and Notices.
    CAUTION: Refer to Compressed Natural Gas (CNG) Fuel Pressure Relief Caution in Cautions and Notices.
  1. Relieve the fuel system pressure. Refer to Fuel Pressure Relief Procedure .
    2. CAUTION: Refer to Battery Disconnect Caution in Cautions and Notices.
  2. Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnect/Connect Procedure (Single Battery) Battery Negative Cable Disconnect/Connect Procedure (Auxiliary Battery) in Engine Electrical in the C/K Pickup service manual.
    3. Fig 1: View Of Fuel Tank And Fuel Tank Cover
    GM757009Courtesy of GENERAL MOTORS CORP.
  3. Remove the tank cover (2). Refer to Fuel Tank Cover Replacement .
    4. Fig 2: Identifying HPR Fuel Lines
    GM757012Courtesy of GENERAL MOTORS CORP.
  4. Disconnect the HPR fuel outlet line (4).
    5. Fig 3: Identifying HPR Fuel Outlet Line
    GM757013Courtesy of GENERAL MOTORS CORP.
  5. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information in the C/K Pickup service manual.
  6. Disconnect the HPR fuel outlet line (3).
  7. Remove the line from the vehicle.
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