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Home >> Cadillac >> 2007 >> CTS Base, 2.8 T, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls And Fuel - 2.8L - Introduction (2 Of 2) >> Repair Instructions >> Fuel Pressure Relief >> Tools Required

Tools Required

J 34730-1A  Fuel Pressure Gage. See Special Tools .

  1. Turn the ignition OFF.
  2. Disconnect the negative battery cable in order to avoid possible fuel discharge if an accidental attempt is made to start the engine. Refer to Battery Negative Cable Disconnection and Connection .
  3. Remove the fuel injector sight shield. Refer to Fuel Injector Sight Shield Replacement .
  4. Remove the air inlet grille panel. Refer to Air Inlet Grille Panel Replacement (LHD) or Air Inlet Grille Panel Replacement (RHD) .
    5. Fig 1: Identifying Fuel Pressure Gauge J 34730-1A
    GM180378Courtesy of GENERAL MOTORS CORP.
  5. Connect the J 34730-1A  to the fuel pressure valve. See Special Tools . Wrap a shop towel around the fitting while connecting the gage in order to avoid spillage.
  6. Install the bleed hose into an approved container.
  7. Open the valve in order to bleed the system pressure. Fuel connections are now safe for servicing.
  8. Drain any fuel remaining in the gage into an approved container.
  9. Install the air inlet grille panel. Refer to Air Inlet Grille Panel Replacement (LHD) or Air Inlet Grille Panel Replacement (RHD) .
  10. Install the fuel injector sight shield. Refer to Fuel Injector Sight Shield Replacement .
  11. Connect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection .
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