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Home >> Chevrolet >> 2010 >> Cobalt SS >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Controls And Fuel - 2.0L - Repair Instructions >> Repair Instructions >> Fuel Pump Replacement >> Removal Procedure
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Removal Procedure

    Fig 1: View Of Engine Wiring Harness & High Pressure Fuel Pump
    GM2035275Courtesy of GENERAL MOTORS CORP.
  1. Relieve the low and high side fuel system pressure. Refer to Fuel Pressure Relief (With CH 48027)  or Fuel Pressure Relief (Without CH 48027)  or Fuel Pressure Relief (High Pressure Side) .
  2. Disconnect the engine wiring harness electrical connector (1) from the high pressure fuel pump.
  3. Remove the engine wiring harness clip (3) from the high pressure fuel pump cover.
  4. Remove the fuel feed intermediate pipe. Refer to Fuel Feed Intermediate Pipe Replacement .
  5. Remove the fuel feed pipe. Refer to Fuel Feed Pipe Replacement .
    6. Fig 2: High Pressure Fuel Pump & Bolts
    GM1769960Courtesy of GENERAL MOTORS CORP.
  6. Remove and discard the high pressure fuel pump bolts.
  7. Remove the high pressure fuel pump.
  8. Remove and discard the high pressure fuel pump gasket.
  9. Remove and discard the high pressure fuel pump O-ring.
    10. Fig 3: Fuel Pump Roller Lifter
    GM1769961Courtesy of GENERAL MOTORS CORP.
  10. Remove the high pressure fuel pump roller lifter, if necessary.
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