Subaru 2009 IMPREZA Service Manual page 163

FUEL INJECTION (FUEL SYSTEMS)
21.Fuel
A: PROCEDURE
1. RELEASING OF FUEL PRESSURE
WARNING:
Place "NO OPEN FLAMES" signs near the
working area.
CAUTION:
Be careful not to spill fuel.
1) Remove the fuse of fuel pump from main fuse
box.
2) Start the engine and run it until it stalls.
3) After the engine stalls, crank it for five more sec-
onds.
4) Turn the ignition switch to OFF.
5) Install the fuse of fuel pump to the main fuse box.
2. DRAINING FUEL
(WITH SUBARU SELECT MONITOR)
WARNING:
Place "NO OPEN FLAMES" signs near the
working area.
CAUTION:
Be careful not to spill fuel.
NOTE:
• If the fuel pump cannot be driven, refer to the
procedures for draining from the fuel filler hose.
<Ref. to FU(H4SO)-52,
(THROUGH THE FUEL FILLER HOSE), PROCE-
DURE, Fuel.>
• Be careful not to let the battery run-out.
1) Release the fuel pressure. <Ref. to FU(H4SO)-
52, RELEASING OF FUEL PRESSURE, PROCE-
DURE, Fuel.>
Fuel
FU-01122
DRAINING FUEL
FU(H4SO)-52
2) Attach ST to the fuel delivery pipe and push ST
in the direction of arrow mark to disconnect the fuel
delivery hose.
ST 42099AE000 QUICK CONNECTOR
RELEASE
CAUTION:
• Be careful not to spill fuel.
• Catch the fuel from hoses using a container
or cloth.
ST
3) Connect ST to the fuel delivery hose.
ST 18471AA000 FUEL PIPE ADAPTER
4) Connect the gasoline proof hose to ST and put
the end of the hose in the container.
5) Drive the fuel pump and drain the fuel using Sub-
aru Select Monitor. <Ref. to EN(H4SO)(diag)-57,
FUEL PUMP CONTROL (ON/OFF DRIVE), OP-
ERATION, System Operation Check Mode.>
CAUTION:
Be careful not to spill fuel.
6) Install the related parts in the reverse order after
draining the fuel.
3. DRAINING FUEL
(THROUGH THE FUEL FILLER HOSE)
• 4 DOOR MODEL
WARNING:
Place "NO OPEN FLAMES" signs near the
working area.
CAUTION:
• Be careful not to spill fuel.
• Fuel may remain in the fuel filler pipe. Drain-
ing the fuel from the fuel filler pipe through the
fill opening using the gasoline proof pump and
the gasoline proof hose (ø10 or less) before the
operation.
1) Set the vehicle on a lift.
2) Lift up the vehicle.
FU-03920