Mitsubishi 1989-1993 GALANT Service Manual page 763

AWD A/T
Problem
low (or high).
NOTE
Line pressures are oil
pressures 2 ,, 0, @,
7
8
standard oil pressure
table on the preced-
ing page.
2. Inappropriate reduc- a. Reducing pressure circuit filter
ing pressure.
c. Malfunction of the valve body
3. Inappropriate kick- a. Malfunction of the kick-down
down brake pressure
b. Malfunction of the valve body
a. Malfunction of the kickdown
down brake release
pressure. b. Malfunction of the valve body
a. Malfunction of the kickdown
clutch pressure.
c. Unusual wear or abrasion of the
a. Malfunction of one or more of
clutch pressure.
b. Malfunction of the valve body
Inappropriate end a. Malfunction of the end clutch's
clutch pressure.
b. Malfunction of the valve body
AUTOMATIC TRANSAXLE - Troubleshootinn
Probable cause(s)
a. Clogged oil filter.
b. Improper adjustment of the oil
pressure (line pressure) of the
regulator valve.
c. Malfunction of the valve body
assembly.
d. Looseness of the valve body
bolts.
e. Improper discharge pressure of
the oil pump.
Looseness of each check plug,
or malfunction of the O-ring.
adjusted.
assembly.
servo piston's @ seal ring, 43
D-ring and/or the sleeve's 0
O-ring.
assembly.
servo piston's @ seal ring.
assembly.
servo piston's @ seal ring.
assembly.
front clutch piston and/or the
retainer, or malfunction of the 0
D-ring and/or the @ seal ring.
the following parts of the rear
clutch: the piston's @I D-ring, or
the retainer's 68 seal ring, or the
input shaft's @I seal ring or @
O-ring.
assembly.
assembly.
Remedy
a. Visually check the oil filter; replace it if it is
clogged.
b. Measure line pressure @ (kick-down brake
pressure); readjust the line pressure if there is a
deviation from the standard value, or replace the
valve body assembly.
d. Tighten the valve body bolts to the specified
torque.
e. Check the side clearance of the oil pump gear;
replace the oil pump assembly if necessary.
f. Check each check plug; replace it if necessary.
a. Disassemble the valve body assembly and check
the filter; replace the filter if it is clogged.
b. @ Measure the reducing pressure; readjust if
there is a diviation from the standard value, or
replace the valve body assembly.
c. Replace the valve body assembly.
a. Disassemble the kick-down servo and check the
seal ring, O-ring and D-ring for damage.
Replace the seal ring, O-ring or D-ring if they are
cut, scarred or scratched.
b. Replace the valve body assembly.
a. Disassemble the kickdown servo and check the
seal ring, for damage.
Replace the seal ring if it is cut, scarred or
scratched.
b. Replace the valve body assembly.
a. Disassemble the kickdown servo and check the
seal ring for damage.
Replace the seal ring if it is cut, scarred or
scratched.
b. Replace the valve body assembly.
c. Disassemble the transaxle itself and check for
unusual wear or abrasion of the front clutch
piston and/or retainer inner circumference, or for
damage of the D-ring and/or seal ring.
If unusual wear or abrasion, or damage, is
discovered, replace the piston, retainer, D-ring or
seal ring.
a. Disassemble the rear clutch and check the input
shaft's O-ring, the retainer's seal ring, the pis-
ton's D-ring, etc.; replace any part that is
discovered to be cut, scarred or scratched.
b. Replace the valve body assembly.
a. Disassemble the end clutch and check the
piston's oil seal and D-ring, and the retainer's
seal ring, etc.; replace any part that is cut,
scarred or scratched.
b. Replace the valve body assembly.