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Home >> GMC >> 2001 >> C3500 HD 6.5 F, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - 6.5L (L65) (Introduction) >> Repair Instructions >> Fuel Balance Pump Replacement >> Installation Procedure
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Installation Procedure

  1. Remove the caps from the fuel pipes.
  2. Install the new fuel pipe O-rings.
    3. Fig 1: View Of Fuel Pump And Bracket
    GM19671Courtesy of GENERAL MOTORS CORP.
  3. Position the new pump in the pump bracket.
    4. Fig 2: Fuel Pipes At Pump
    GM19670Courtesy of GENERAL MOTORS CORP.
    NOTE: Refer to Fastener Notice in Cautions and Notices.
  4. Connect the fuel feed pipe and suction pipe to the fuel pump. Use a backup wrench to prevent the pump from turning.

    Tighten:  Tighten the fittings to 30 N.m (22 lb ft).

    5. Fig 3: Fuel Pump Electrical Connector
    GM19669Courtesy of GENERAL MOTORS CORP.
  5. Connect the electrical connector.
  6. Lower the vehicle.
  7. Tighten the fuel filler cap.
  8. Connect the negative battery cable.
  9. Inspect for fuel leaks.
    1. Turn ON the ignition for 2 seconds.
    2. Turn OFF the ignition for 10 seconds.
    3. Turn ON the ignition switch.
    4. Inspect for fuel leaks.
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