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Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> External Pages >> Different car >> Section 322 (Engine Controls And Fuel - 5.3L, 6.0L & 6.2L - Repair Instructions) >> Repair Instructions >> Fuel Pressure Gauge Installation and Removal >> Removal Procedure

Removal Procedure

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    Fig 1: Digital Pressure Gauge And Special Tools
    GM1828580Courtesy of GENERAL MOTORS CORP.
  1. Relieve the fuel system pressure, if required. Perform the following steps:
      WARNING:

      Wrap a shop towel around the fuel pressure connection in order to reduce the risk of fire and personal injury. The towel will absorb any fuel leakage that occurs during the connection of the fuel pressure gauge. Place the towel in an approved container when the connection of the fuel pressure gauge is complete.

    1. Wrap a shop towel around the fuel rail service port.
    2. Place the hose on the CH-48027-2 (2) into an approved gasoline container.
    3. Open the valve on the CH-48027-2 (2) in order to bleed any fuel from the fuel rail.
    4. Close the valve on the CH-48027-2 (2).
    5. Remove the hose on the CH-48027-2 (2) from the approved gasoline container.
    6. Remove the shop towel from around the fuel rail service port, and place in an approved gasoline container.
    2. CAUTION:

    Clean all of the following areas before performing any disconnections in order to avoid possible contamination in the system:

    • The fuel pipe connections
    • The hose connections
    • The areas surrounding the connections
  2. Disconnect the CH-48027-1 (1) from the CH-48027-2 (2).
  3. Disconnect the CH-48027-2 (2) from the CH-48027-3 (4).
  4. Disconnect the CH-48027-3 (4) from the fuel rail service port.
  5. Install the fuel rail service port cap.
  6. Tighten the fuel fill cap.
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