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Home >> GMC >> 2018 >> Acadia Denali, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 56 (Engine Controls And Fuel - 3.6L (LF4 LGX) - Repair Instructions) >> Repair Instructions >> Fuel Pump Replacement (LGX) >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2016 Cadillac ATS. However, it is still accessible from the selected car via links, so may be relevant.
  1. Plenum Front Panel Replacement -Remove
  2. Fuel Feed Intermediate Pipe Replacement (LGX) -Remove and DISCARD
  3. Fig 1: Electrical Connector
    GM4420331Courtesy of GENERAL MOTORS COMPANY
  4. Electrical Connector -Disconnect
  5. Fig 2: Fuel Feed Pipe
    GM4094206Courtesy of GENERAL MOTORS COMPANY
  6. Fuel Feed Pipe @ Fuel Pump -Disconnect - Metal Collar Quick Connect Fitting Service 
  7. Fig 3: Fuel Pump
    GM4095372Courtesy of GENERAL MOTORS COMPANY
    CAUTION:

    Alternately loosen the fuel pump bolts one turn at a time until the pump is fully disengaged from fuel pump lifter follower. Trying to remove the pump bolts without even side-to-side loosening may result in pump plunger damage

  8. Fuel Pump Bolt -Remove and DISCARD
    1. Fuel Pump -Remove
    2. Gasket -Remove and DISCARD
    3. Fuel Pump O-Ring -Remove and DISCARD
    4. NOTE:

      Take note of the orientation of the valve lifter follower (5).

    5. Valve Lifter Follower -Remove