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Home >> Chevrolet >> 2003 >> SSR Base >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - 5.3L - Introduction >> Repair Instructions >> Fuel Pressure Relief Procedure >> Tools Required
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Tools Required

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

CAUTION: Relieve the fuel system pressure before servicing fuel system components in order to reduce the risk of fire and personal injury.
After relieving the system pressure, a small amount of fuel may be released when servicing the fuel lines or connections. In order to reduce the chance of personal injury, cover the regulator and the fuel line fittings with a shop towel before disconnecting. This will catch any fuel that may leak out. Place the towel in an approved container when the disconnection is complete.
    Fig 1: Identifying Fuel Pressure Gauge J 34730-1A
    GM180378Courtesy of GENERAL MOTORS CORP.
  1. 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 Disconnect/Connect Procedure in Engine Electrical.
  2. Remove the engine sight shield. Refer to Engine Sight Shield Replacement in Engine Mechanical.
  3. Loosen the fuel filler cap in order to relieve the fuel tank vapor pressure.
  4. Connect the J 34730-1A  to the fuel pressure valve.Special Tools . Wrap a shop towel around the fitting while connecting the gauge in order to avoid spillage.
  5. Install the bleed hose of the gauge into an approved container.
  6. Open the valve on the gauge to bleed the system pressure. The fuel connections are now safe for servicing.
  7. Drain any fuel remaining in the gauge into an approved container.