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Home >> Chevrolet >> 2016 >> Malibu LS >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Controls And Fuel - 1.5L (LFV) - Repair Instructions >> Repair Instructions >> Fuel Injection Pump Replacement >> Installation Procedure

Installation Procedure

    Fig 1: Gauge
    GM3824669Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    The camshaft must be in the base circle position before the high pressure fuel pump is installed.

  1. Install the EN-51365  gauge (1).
  2. Use EN-51365  gauge (1) and rotate the crankshaft until the special tool is flush with the cylinder head. This indicates the camshaft lobe is at base circle position.
  3. Remove the EN-51365  gauge (1).
  4. Fig 2: Fuel Injection Pump Bolt
    GM3824668Courtesy of GENERAL MOTORS COMPANY
  5. Lubricate the valve lifter follower (1) with engine oil.
  6. Install the valve lifter follower (1).
  7. Ensure that the guide pin on the follower is aligned with the groove in the fuel pump bore.
  8. Install a NEW Fuel Injection Pump Gasket (2)
  9. Install Fuel Injection Pump (3)
  10. Install the 2 fuel injection pump bolts (4) alternating in steps of 1/2 turn.
  11. CAUTION:

    Alternately hand-tighten the fuel pump bolts one turn at a time until the pump is fully seated. Trying to draw down the pump without even side-to-side tightening may result in pump plunger damage.

    CAUTION:

    Refer to Fastener Caution .

  12. Tighten Fuel Injection Pump Bolt (4) (Qty: 2) to 25 N.m (18 lb ft)
  13. Fig 3: Fuel Pump Insulator
    GM3824664Courtesy of GENERAL MOTORS COMPANY
  14. Install Fuel Pump Insulator (3) at Fuel Injection Pump (1)
  15. Connect the electrical connector (2)
  16. Fig 4: Fuel Feed Front Pipe
    GM3824663Courtesy of GENERAL MOTORS COMPANY
  17. Reposition the engine control module and engine wiring harness bracket (3).
  18. Install the 2 engine control module and engine wiring harness bracket bolts (2) and tighten to 9 N.m (80 lb in).
  19. Connect Fuel Feed Front Pipe (1). Refer to: Plastic Collar Quick Connect Fitting Service 
  20. Connect Charge Air Cooler Outlet Air Hose at Throttle Body. Refer to: Charge Air Cooler Outlet Air Tube Replacement 
  21. Install Fuel Feed Intermediate Pipe Replacement 
  22. Connect Battery Negative Cable Disconnection and Connection (with KL9)Battery Negative Cable Disconnection and Connection (without KL9)
  23. After replacement of the fuel injection pump, use a scan tool to learn functions. Refer to K20 Engine Control Module: Programming and Setup .