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Home >> Cadillac >> 2012 >> Escalade EXT >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Controls/Fuel - 5.3L, 6.0L, 6.2L - Repair Instructions >> Repair Instructions >> Fuel Pressure Sensor Replacement >> Installation Procedure
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Installation Procedure

    Fig 1: Fuel Pressure Sensor
    GM1911651Courtesy of GENERAL MOTORS COMPANY
  1. Lubricate a NEW fuel pressure sensor O-ring seal with clean engine oil.
  2. Install the NEW fuel pressure sensor O-ring seal (2) onto the fuel line fitting.
  3. Wrap a shop towel around the fuel pressure sensor fitting in order to absorb any fuel that may leak out.
    4. CAUTION:

    Refer to Fastener Caution .

  4. Install the fuel pressure sensor (1) to the fuel line.

    Tighten 

    Tighten the sensor to 15 N.m (11 lb ft).

    5. Fig 2: Locating Chassis Wiring Harness Electrical Connector
    GM1911650Courtesy of GENERAL MOTORS COMPANY
  5. Connect the chassis wiring harness electrical connector (1) to the fuel pressure sensor.
  6. Lower the vehicle.
  7. Use the following procedure in order to inspect for leaks:
    1. Turn the ignition ON, with the engine OFF, for 2 seconds.
    2. Turn the ignition OFF for 10 seconds.
    3. Turn the ignition ON, with the engine OFF.
    4. Inspect for fuel leaks.
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