Subaru 2009 IMPREZA, Service Manual

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4AT-86
Oil Pump Housing
AUTOMATIC TRANSMISSION
31.Oil Pump Housing
A: REMOVAL
1) Remove the transmission assembly from the ve-
hicle. <Ref. to 4AT-36, REMOVAL, Automatic
Transmission Assembly.>
2) Pull out the torque converter clutch assembly.
<Ref. to 4AT-69, REMOVAL, Torque Converter
Clutch Assembly.>
3) Remove the input shaft.
4) Lift up the lever on the rear side of transmission
harness connector, and then remove it from the
stay.
5) Remove the inhibitor switch connector from the
stay.
6) Remove the oil charge pipe. <Ref. to 4AT-68,
REMOVAL, Oil Charge Pipe.>
7) Remove the ATF inlet and outlet pipes. <Ref. to
4AT-64, REMOVAL, ATF Cooler Pipe and Hose.>
8) Separate the converter case and transmission
case. <Ref. to 4AT-83, REMOVAL, Converter
Case.>
9) Separate the transmission case and extension
case section. <Ref. to 4AT-71, REMOVAL, Exten-
sion Case.>
10) Remove the reduction drive gear. <Ref. to 4AT-
80, REMOVAL, Reduction Drive Gear.>
11) Remove the reduction driven gear. <Ref. to
4AT-78, REMOVAL, Reduction Driven Gear.>
12) Loosen the oil pump housing mounting bolts.
13) Place two wooden blocks on the workbench,
and stand the transmission case with the rear end
facing down.
NOTE:
• Be careful not to scratch the rear mating surface
of the transmission case.
• Check the height of the wooden blocks to avoid
damaging the parking rod and the drive pinion pro-
truding from the mating surface.
14) Remove the oil pump housing and the adjust-
ing thrust washer.
AT-00114
AT-01034
(A) Oil pump housing
AT-04862
(2.17in)
55mm
AT-00182
(A)