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gmc Workshop Repair Guides


Savana 3500 V8-4.8L (2009)

Maintenance > Tune-up and Engine Performance Checks > Fuel Filter > Fuel Pressure Release > System Information > Service and Repair > Fuel Pressure Relief (With CH-48027) > Page 873

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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 gage. Place the towel in an approved container when the connection of the fuel pressure gage 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.

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. Install the engine cover, if required.
7. Tighten the fuel fill cap.

Maintenance > Tune-up and Engine Performance Checks > Fuel Filter > Fuel Pressure Release > System Information > Service and Repair > Fuel Pressure Relief (With CH-48027) > Page 873

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