Envoy 2WD V8-5.3L VIN P (2004)
Fuel Pressure Release: Service and Repair
Fuel Pressure Gage Installation and Removal
FUEL PRESSURE GAGE INSTALLATION AND REMOVAL
INSTALLATION PROCEDURE
TOOLS REQUIRED
J 34730-1A Fuel Pressure Gage
CAUTION: Gasoline or gasoline vapors are highly flammable. A fire could occur if an ignition source is present. Never drain or store
gasoline or diesel fuel in an open container, due to the possibility of fire or explosion. Have a dry chemical (Class B) fire extinguisher nearby.
1. Remove the fuel pressure service connection cap, located on the fuel rail.
CAUTION: 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.
2. Install the J 34730-1A fuel pressure gage to the fuel pressure service connection, located on the fuel rail.
3. Turn ON the ignition.
CAUTION: Do not drain the fuel into an open container. Never store the fuel in an open container due to the possibility of a fire or an
explosion.
4. Place the bleed hose of the fuel pressure gage into an approved gasoline container.
5. Open the bleed valve on the fuel pressure gage in order to bleed the air from the fuel pressure gage.
6. Command the fuel pump ON with a scan tool.
7. Close the bleed valve on the fuel pressure gage.
8. Inspect for fuel leaks.
REMOVAL PROCEDURE
