Relief Procedure
Tool Required: J 34730-1A 
, Fuel
Pressure Gauge 
- Disconnect the negative battery terminal to avoid possible fuel
discharge if an accidental attempt is made to start the engine.
 
- Loosen the fuel filler cap to relieve tank vapor pressure.
 
- Connect 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 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.