Express 3/4 Ton Van V8-4.8L VIN V (2003)
Fuel Pressure Release: Service and Repair
Fuel Pressure Gage Installation and Removal
TOOLS REQUIRED
J 34730-1A Fuel Pressure Gage
INSTALLATION PROCEDURE
CAUTION: Refer to Gasoline/Gasoline Vapors Caution in Service Precautions.
1. Remove the engine cover.
CAUTION: Refer to Fuel Gage Leak Caution in Service Precautions.
NOTE: Clean all of the following areas before performing any disconnections in order to avoid possible contamination in the system:
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The fuel pipe connections
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The hose connections
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The areas surrounding the connections
1. Install the J 34730-1A to the fuel pressure service connection, located on the fuel rail.
2. Turn ON the ignition.
3. Place the bleed hose of the fuel pressure gage into an approved gasoline container.
CAUTION: Refer to Fuel Storage Caution in Service Precautions.
4. Open the bleed valve on the fuel pressure gage in order to bleed the air from the fuel pressure gage.
5. Command the fuel pump ON with a scan tool.
6. Close the bleed valve on the fuel pressure gage.
7. Inspect for fuel leaks.
REMOVAL PROCEDURE
1. Place the fuel pressure gage bleed hose into an approved container and open the bleed valve to bleed OFF fuel system pressure.
2. Place a shop towel under the J 34730-1A to catch any remaining fuel spillage.
