LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Cadillac >> 2011 >> STS AWD >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Controls And Fuel - 3.6L - Repair Instructions >> Repair Instructions >> Fuel Pump Replacement >> Removal Procedure
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Removal Procedure

  1. Relieve the low and high side fuel system pressure. Refer to Fuel Pressure Relief (High Pressure Pump) .
  2. Remove the cross vehicle brace. Refer to Cross Vehicle Brace Replacement .
  3. Remove the high pressure fuel pump shield. Refer to Fuel Pipe Shield Replacement .
  4. Remove the intake manifold. Refer to Intake Manifold Replacement .
  5. Remove the wiper module. Refer to Windshield Wiper Motor Replacement .
    6. Fig 1: Identifying High Pressure Fuel Pump & Components
    GM1977751Courtesy of GENERAL MOTORS COMPANY
  6. Disconnect the engine wiring harness electrical connector from the high pressure fuel pump.
  7. Remove the radiator surge tank outlet pipe. Refer to Radiator Surge Tank Outlet Hose/Pipe Replacement .
  8. Remove the low pressure feed pipe. Refer to Fuel Feed Pipe Replacement .
  9. Remove the high pressure pipe. Refer to Fuel Feed Intermediate Pipe Replacement . Discard this pipe.
  10. Remove and discard the high pressure fuel pump bolts (4).
  11. Remove the high pressure fuel pump (3).
  12. Remove and discard the high pressure fuel pump gasket (2).
  13. Remove and discard the high pressure fuel pump O-ring.
  14. Remove the high pressure fuel pump roller lifter.
scientia non olet · About LEMON Manuals