Relief Procedure
Tools Required
J 34730-1A , Fuel Pressure
 Gauge 
Caution: Unless directed otherwise, the ignition and start switch must be in the OFF or LOCK position, and all electrical loads must be OFF before servicing
any electrical component. Disconnect the negative battery cable to prevent an electrical spark should a tool or equipment come in contact with an exposed electrical terminal. Failure to follow these precautions may result in personal injury and/or damage to
the vehicle or its components. 
- Disconnect
the negative battery terminal. Refer to 
Battery Negative Cable Disconnection and Connection 
 in Engine Electrical.
 
- Loosen the fuel filler cap in order to relieve the tank vapor
pressure.
 
- Connect the Fuel Pressure Gauge J 34730-1A 
 to the fuel pressure connection. Wrap a shop towel  around
 the fuel pressure connection while connecting the fuel pressure gauge in
 order to avoid spillage.
 
- Install the bleed hose into an approved container, and open the
valve in order to bleed the system pressure. The fuel connections
are now safe for  servicing.
 
- Drain any fuel remaining in the fuel pressure gauge into an approved
container.