Fuel Level Sensor - Subaru 2009 IMPREZA Service Manual

25.Fuel Level Sensor

A: REMOVAL
WARNING:
Place "NO OPEN FLAMES" signs near the
working area.
CAUTION:
• Be careful not to spill fuel.
• If the fuel gauge indicates that two thirds or
more of the fuel is remaining, be sure to drain
fuel before starting work to avoid the fuel to
spill.
NOTE:
The fuel level sensor is built in fuel pump assembly.
1) Remove the fuel pump assembly. <Ref. to
FU(H4SO)-65, REMOVAL, Fuel Pump.>
2) Disconnect the connector (A) from the sub tank
bracket assembly.
3) Remove the fuel temperature sensor (B) from
sub tank.
(A)
(B)
4) Slide the fuel level sensor in the direction of the
arrow and remove the fuel level sensor by pressing
the claw (A) of the fuel level sensor.
B: INSTALLATION
Install in the reverse order of removal.
Fuel Level Sensor
FU-04347
(A)
FU-04225
FU(H4SO)-67
FUEL INJECTION (FUEL SYSTEMS)
C: INSPECTION
NOTE:
When inspecting the fuel level sensor, perform the
work with it installed to the fuel pump.
1) Measure the fuel level sensor float position.
(1) FULL
(2) EMPTY
(3) Fuel tank seating surface
Float position
FULL to Fuel tank seating
surface (A)
EMPTY to Fuel tank seating
surface (B)
2) Measure the resistance between fuel level sen-
sor terminals.
Float position Terminal No.
FULL (A)
EMPTY (B)
(1)
(A)
(2)
(B)
(3)
FU-04348
Standard
135 4 mm (5.315 0.157 in)
23.7 4 mm (0.933 0.157 in)
(A)
(B)
2 1
4 3
6 5
FU-04349
Standard
2.0 1.0
1 and 4
31.9 1.0