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Home >> GMC >> 2001 >> Sierra 1500 HD, 4WD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 8 (Engine Controls - 4.3L - Repair Instructions) >> Repair Instructions >> Fuel Line Replacement - Chassis >> Installation Procedure

Installation Procedure

WARNING: This page is about a different variant/trim than selected.
    Fig 1: View Of EVAP Pipe & Retaining Clips
    GM304560Courtesy of GENERAL MOTORS COMPANY
    IMPORTANT:
    • When replacing the fuel pipes, always replace them with original equipment or parts that meet the GM specifications for those parts. The replacement pipes must have the same type of fittings as the original pipes in order to ensure the integrity of the connection.
    • DO NOT use copper or aluminum tubing to replace steel tubing. Only tubing meeting the 124-M specification or its equivalent is capable of meeting all pressure, corrosion, and vibration characteristics necessary to ensure the durability standard required.
  1. Install the fuel pipes into the retaining clips (1).
    2. Fig 2: Chassis Fuel Pipes
    GM303903Courtesy of GENERAL MOTORS COMPANY
  2. Remove the caps from the rear fuel pipes.
  3. Connect the chassis fuel feed and return pipes at the rear fuel feed and return pipes. Refer to Plastic Collar Quick Connect Fitting Service .
    4. Fig 3: Evaporative Emission Canister
    GM303981Courtesy of GENERAL MOTORS COMPANY
  4. Install the EVAP canister. Refer to Evaporative Emission Canister Replacement (Pickup) .
    5. Fig 4: View Of Fuel Feed/Return Pipe & EVAP Pipe Clip
    GM300385Courtesy of GENERAL MOTORS COMPANY
  5. Install the fuel pipes into the transfer case bracket clip, 4 wheel drive only.
    6. Fig 5: View Of EVAP Pipe, Fuel Feed/Return Pipes & Engine Compartment Pipes
    GM583167Courtesy of GENERAL MOTORS COMPANY
  6. Install the fuel pipes into the transmission bracket clip.
  7. Lower the vehicle.
  8. Remove the caps from the engine compartment fuel pipes.
  9. Refer to FASTENER NOTICE in Cautions and Notices.

    Connect the fuel feed and return pipes (4) to the engine compartment fuel pipes.

    Tighten 

    Tighten the fuel feed and return pipe fittings to 28 N.m (21 lb ft).

  10. Install the fuel pipes into the bellhousing stud clip (3).

    Tighten 

    Tighten the fuel pipe clip nut to 25 N.m (18 lb ft).

  11. Tighten the fuel filler cap.
  12. Connect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection (Auxiliary Battery) , Battery Negative Cable Disconnection and Connection (Single Battery) in Engine Electrical.
  13. Inspect for leaks using the following procedure:
    1. Turn ON the ignition, with the engine OFF for 2 seconds.
    2. Turn OFF the ignition for 10 seconds.
    3. Turn ON the ignition, with the engine OFF.
    4. Inspect for fuel leaks.
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