Envoy 4WD V8-5.3L VIN M (2005)
Fuel Pressure Release: Service and Repair
Fuel Pressure Relief Procedure
FUEL PRESSURE RELIEF PROCEDURE
TOOLS REQUIRED
J 34730-1A Fuel Pressure Gage
1. Disconnect the negative battery cable.
2. Install J 34730-1A.
3. Loosen the fuel fill cap in order to relieve the fuel tank vapor pressure.
4. Open the valve on J 34730-1A in order to bleed the system pressure. The fuel connections are now safe for servicing.
5. Drain any fuel remaining in the gage into an approved container.
6. Once the system pressure is completely relieved, remove J 34730-1A.
