Mike's Workshop Manuals: Service manuals for every vehicle
Home >> Cadillac >> 2016 >> XTS Base >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Controls And Fuel - 3.6L (LFX LF3) - Repair Instructions >> Repair Instructions >> Fuel Pump Replacement (LF3) >> Removal Procedure

Removal Procedure

  1. Relieve the fuel pressure. Refer to Fuel Pressure Relief .
  2. Remove and DISCARD the fuel feed pipe. Refer to Fuel Feed Pipe Replacement (At Tank AWD) Fuel Feed Pipe Replacement (LF3 At Engine) .
  3. Remove and DISCARD the fuel feed intermediate pipe. Refer to Fuel Feed Intermediate Pipe Replacement (LF3) .
    4. Fig 1: High Pressure Fuel Pump
    GM3330535Courtesy 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

  4. Remove and DISCARD the high pressure fuel pump bolts (1).
    1. Remove the high pressure fuel pump (2).
    2. Remove the valve lifter follower (3).
    3. Remove and DISCARD the high pressure fuel pump gasket (4).
    4. Remove and DISCARD the high pressure fuel pump O-ring (5).
scientia non olet · About Mike's Workshop Manuals