Mitsubishi 1989 Galant, Service Manual

Page: 45 / 1273

GENERAL
Maintenance Service
TRANSAXLE
Inspect fluid level
1. Drive until the fluid temperature reaches the usual
ternperature
2. vehicle on level floor.
3. Move selector lever sequentially to every position to fill
torque converter and hydraulic circuit with fluid, then
place lever in “N” Neutral position. This operation is
necessary to be sure that fluid level check is accurate.
4.
Before removing dipstick, wipe all dirt from area around
dipstick. Then
take
out the dipstick and check the
condition of the fluid.
The transaxle should be overhauled under the following
conditions.
l
If there is a “burning” odor.
l
If the fluid color has become noticeably blacker.
l
If there is a noticeably great amount of metal
particles in the fluid.
5. to see if fluid level is in “HOT” range on dipstick.
If fluid level is low, add ATF until level reaches “HOT”
range.
fluid level can cause a variety of conditions
because it allows pump to take in air along with fluid. Air
trapped in hydraulic circuit forms bubbles which make
fluid spongy. Therefore, pressures will be erratic.
Improper filling can also raise fluid level too high. When
transaxle has too much fluid, gears
churn
up
foam and
cause same conditions which occur with low fluid level,
resulting in accelerated deterioration of ATF.
In either case, air bubbles can cause overheating, fluid
oxidation, which can interfere with normal valve, clutch,
and servo operation. Foaming can also result in fluid
escaping from transaxle vent where it may be mistaken
for a leak.
6. Be sure to examine fluid on dipstick closely.
fluid
Drain fluid and check whether there is any evidence of
contamination.
Replenish with new fluid after the cause of any contamina-
tion been corrected.
Rernove drain plugs to let fluid drain.
(2) Rernove the oil pan.
(3) Check the oil filter for clogging and damage and replace
if necessary.
(4) Clean the inside of oil pan and 5 magnets.
(5) Attach the five magnets to the concave part of the oil
TSB Revision
(6) Clean both gasket surfaces of transaxle case and oil
pan.
(7) Install oil pan with new gasket and tighten oil pan bolts
to 2 Nm (7.5-8.5
(8) Tighten drain plug with gasket to Nm (22-25
(9) Supply 4 (4.23 qts.) of specified ATF into case
through dipstick hole. [Total quantity of ATF required is
6.1 (6.45
Actually however, approx. 4.5 (4.76 qts.) of fluid
be replaced because rest of fluid remains in torque
1