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Home >> Buick >> 2017 >> LaCrosse Base >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Controls And Fuel - 3.6L (LGX) - Repair Instructions >> Repair Instructions >> Fuel Pump Replacement >> Installation Procedure
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Installation Procedure

Fig 1: Fuel Pump Components
GM4315985Courtesy of GENERAL MOTORS COMPANY
Fig 2: Fuel Pump Installation Alignment Gauge
GM4094256Courtesy of GENERAL MOTORS COMPANY
    Fig 3: Fuel Pump Components
    GM4315985Courtesy of GENERAL MOTORS COMPANY
  1. Before continuing, lubricate the cylinder head bore with clean engine oil. Adhesives, Fluids, Lubricants, and Sealers
  2. Install the Fuel Pump. FUEL PUMP INSTALLATION
    3. Fig 4: Electrical Connector And Fuel Pump
    GM4315979Courtesy of GENERAL MOTORS COMPANY
  3. Electrical Connector (1) @Fuel Pump (2) - Connect
    4. Fig 5: Fuel Feed Pipe And Fuel Pump
    GM4315879Courtesy of GENERAL MOTORS COMPANY
  4. Fuel Feed Pipe 1 @Fuel Pump 2 - Connect - Metal Collar Quick Connect Fitting Service 
    NOTE: Once all fuel related components are installed, perform the fuel leak check in Installation Step 12 BEFORE continuing to install any non fuel related components.
  5. Fuel Feed Intermediate Pipe - Install NEW Fuel Feed Intermediate Pipe Replacement  - Install
    NOTE: If a fuel leak occurs at the fuel pump or fuel injection fuel rail fittings, the corresponding component will need to be replaced.
  6. Inspect for fuel 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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