Transfer Clutch Pressure Test - Subaru Impreza 2004 Service Manual

8. Transfer Clutch Pressure
Test
A: INSPECTION
• MPT MODEL
Check the transfer clutch pressure in accordance
with the following chart in the same manner as with
line pressure. <Ref. to 4AT-38, Line Pressure
Test.>
ST 498897700 OIL PRESSURE ADAPTER
SET
ST 498575400 OIL PRESSURE GAUGE
ASSY
AWD mode: "D" range
FWD mode: "P" range, engine speed 2,000 rpm
If oil pressure is not produced or if it does not
change in the AWD mode, the transfer duty sole-
noid or transfer valve assembly may be malfunc-
tioning. If oil pressure is produced in the FWD
mode, the problem is similar to that in the AWD
mode.
NOTE:
Before setting in FWD mode, install the spare fuse
on FWD mode switch.
(A) Test plug
NOTE:
If the oil pressure is not produced or if it does not
change in the AWD mode, the transfer duty sole-
noid or transfer valve assembly may be malfunc-
tioning. If the oil pressure is produced in the FWD
mode, the problem is similar to that in the AWD
mode.
• VTD MODEL
Check transfer clutch pressure using the following
chart. <Ref. to 4AT-38, Line Pressure Test.>
ST 498897700 OIL PRESSURE ADAPTER
SET

Transfer Clutch Pressure Test

( A )
AT-00021
4AT-39
AUTOMATIC TRANSMISSION
ST 498575400 OIL PRESSURE GAUGE
ASSY
(A) Test plug
(A)
AT-00676