Fuel System Pressure Release
NOTE:
Fuel Pressure Gauge (J-34730-1A) and Fuel Pressure Gauge Adapter (J-42242) are required to perform this procedure. See Figure
and Figure
.
Clean fuel pipe connections, hose connections, and areas surrounding the connections before performing any disconnections in order to avoid possible contamination in the system.
- Turn ignition OFF.
- Disconnect battery negative cable in order to avoid possible fuel discharge if an accidental attempt is made to start the engine.
- Loosen fuel filler cap and relieve fuel tank vapor pressure.
- Remove cap on fuel pressure service connection. Connect Fuel Pressure Gauge and Fuel Pressure Gauge Adapter to fuel pressure service connection. See Fig 1 . Wrap a shop towel around fitting while connecting the gauge to avoid spillage.
- Place bleed hose of Fuel Pressure Gauge into an approved gasoline container.
- Open bleed valve on Fuel Pressure Gauge and bleed the fuel system pressure. The fuel connections are now safe for servicing.
- Place a shop towel under fuel pressure service connection to catch any remaining fuel spillage.
- Remove both Fuel Pressure Gauge and Fuel Pressure Gauge Adapter from fuel pressure service connection.
- Drain any fuel remaining in Fuel Pressure Gauge into an approved gasoline container.
- Install cap on fuel pressure service connection.