1991 MITSUBISHI ECLIPSE brake fluid

21-202AUTOMATIC TRANSAXLE - Troubleshooting
CONVERTER STALL TESTStall test consist of determining maximum engine
speed obtained at full throttle in “D” and “R”
positions. This test checks torque converter stator
overrunning clutch operation, and holding ability of
transaxle clutches and low-reserve brake.
CautionDuring this test, make sure that no one stand in
front of or behind vehicle.
1. Check transaxle fluid level. Fluid should be at
normal operating temperature
[70-80°C (160-
18O”F)]. Engine coolant should also be at normaloperating temperature
[80-90°C (180- 19O”F)l.2. Apply chocks to both rear wheels.
3. Attach engine tachometer.
4. Apply parking and service brakes fully.
5. Start engine.
6. With selector lever in “D” position, depress
accelerator pedal fully to read engine maximum
rpm. Do not hold throttle wide open any longer
than is necessary to obtain maximum engine
rpm reading, and never longer than 5 seconds ata time. If more than one stall test is required,
operate engine at approximatey 1,000 rpm in
neutral for 2 minutes to cool transaxle fluid
between tests.
Stall speed:
1,800-3,200 rpm
TRANSAXLE CONTROL7. Place selector lever to “R” position and perform
?+stall test by the same procedure as in foregoing
-,
item.Stall Speed Above Specification in “D”
If stall speed is higher than specification, rear clutchor overrunning clutch of transaxle is slipping. In this
case, perform hydraulic test to locate cause of
slippage.Stall Speed Above Specifjcation in “R”
If stall speed is higher than specification, front
clutch of transaxle or low-reverse brake is slipping.
In this case, perform hydraulic test to locate cause
of slippage.
Stall Speed Below Specification in “D” and “R”
If stall speed is lower than specification, insufficient
engine output or faulty torque converter is sus-
pected. Check for engine misfiring, ignition timing,
valve clearance etc. If these are good, torque
converter is faulty.
Symptom
Selector lever operation isstiff
Probable causeIncorrect adjustment of sleeve
Incorrect adjustment of control cable
Excessive wear of detent plate
Worn contact surfaces of pushbutton and sleeveRemedyAdjust
Replace
Starter motor does notoperate with the selector
lever in the “N” or
“P”position
Will not shift to
4-speedMalfunction in inhibitor switch
Malfunction of starter relay
Incorrect adjustment of control cableMalfunction of OD switch
Replace
Adjust
Replace

AUTOMATIC TRANSAXLE - service Adjustment Procedures21-209
09Pooi awith this range.
09POOll
TWO382
SERVICE ADJUSTMENT PROCEDURESN21FB6E
TRANSAXLE FLUID LEVEL INSPECTION1. Drive until the fluid temperature reaches the usual tem-
perature
[70-80°C (160- 18O”F)I.2. Place 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.
4. Before removing dipstick, wipe all dirt from area around
dipstick. Then take out the dipstick and check the conditionof 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.
lIf there is a noticeably great amount of metal particles inthe fluid.
5.Check to see if fluid level is in “HOT” range on dipstick. If
fluid level is low, add automatic transaxle fluid until level
reaches “HOT” range.
Transaxle fluid: MOPAR ATF PLUS (Automatic trans-
mission fluid type 7176) or Dia ATF SPor equivalent
Low fluid level can cause a variety of conditions
becaljse 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, causing delayed shift,
slippy clutch and brakes, etc.
Improper filling can also raise fluid level too high. When
transaxle has too much fluid, gears churn up foam and
cause the same conditions which occur with low fluid level,
resulting in accelerated deterioration of automatic transaxle
fluid.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.
TRANSAXLE FLUID REPLACEMENTN21FCBAaRefer to GROUP O-Maintenance Service.
TRANSFER OIL LEVEL INSPECTIONNZlFXAATransfer oil level inspection is the same as for the manual
transaxle transfer.
Refer to GROUP
22-Service Adjustment Procedures.
TRANSFER OIL REPLACEMENTNZlFYAFaTransfer oil replacement is the same as for manual transaxle
transfer.Refer to GROUP
22-Service Adjustment Procedures.

21-214AUTOMATIC TRANSAXLE - Service Adjustment Procedures
'50157
F4
1
7.Turn the adjustment screw of the regulator valve and adjustso that the line pressure
(kickdown brake pressure) a,becomes the standard value.
When the adjustment screw is turned to the clockwise, the
Lline pressure becomes lower; when it is turned to
counter-clockwise, it becomes higher.
Standard value:
870-890 kPa (124-127 psi)
Oil pressure change for each turq of
adjustment screw: 38
kPa (54 psi)
8. Check to be sure that the O-ring is installed on the upper
surface of the valve body at the place shown in the figure.
9.Replace the O-ring of the solenoid valve harness grommet
with a new one.
10. Insert the solenoid valve harness grommet in the axle case.
11. Install the valve body and oil temperature sensor, and then
(IO pieces) to
tighten valve body assembly mounting bolts
IO-12 Nm (7.5-8.5 ft.lbs.).A: 18 mm
(.709 in.) long
B: 25 mm
(.984 in.) long
C: 40 mm (1.575 in.) long
12. Install the oil filter.
13. Install a new oil pan gasket and oil pan.
14. Pour in the specified amount of Automatic transaxle fluid.
15. Make the oil pressure test. Readjust if necessary.
+-t
--,,
REDUCING PRESSURE ADJUSTMENTNZlFTAC(If the multi-use tester is not available)
1. Remove parts up to the oil filter in the same way as for
adjustment of the line pressure. The valve body need not
be removed.
+%2. Turn the adjustment screw of the lower valve body and_adjust so that the reducing pressure is the standard value.
When the adjustment screw is turned to the right, the
reducing pressure becomes lower; when it is turned to the
left, it becomes higher.

AUTOMATIC TRANSAXLE - Transaxle Assembly 21124931. Install the brake disc and brake plate.
32. Mount the pressure plate which was selected in Step 1.
33. Install the return spring.
34. Apply a coating of petrolatum to the wave spring and attachit to the center support.
35. Install two new O-rings to hydraulic holes of the center
support.36. Apply automatic transaxle fluid to the O-rings.

21-298 AUTOMATIC TRANSAXLE - Transaxle Assembly 91. Insert the center shaft and hit it with a plastic hammer or
similar instrument to install it securely
.
NOTEApply ATF to the oil seal lip and do not scratch it.
92. Apply ATF to the oil pump drive hub, install the torque
converter and push it in securely so dimension A shown in
the figure reaches the standard value.
Standard value: Approximately 16.3 mm
(.642 in.)
CAUTIONS DURING COMPONENT DISASSEM-
BLY AND REASSEMBLYGeneral cautions when cleaning
1. Clean each part, blow out oil passages and oil holes, etc.
with air and check that nothing is clogged.
2. For cleaning fluid, use the designated ATF (automatic
transmission fluid) or kerosene.3. When drying parts with air, be careful not to get ATF or
kerosene on your face.Cautions when handling parts
1. After washing the parts, arrange them in order so inspec-
tion, repairs and assembly can be performed properly.
2. When disassembling the valve body, store each valve,
making a group of the various springs.
3.Soak the new brake and clutch discs used for replacementin ATF for more than 2 hours before assembly.
General cautions during reassembly
1.Be sure to apply ATF to seal rings, clutch disc, clutch plateand rotating parts and sliding parts and then install.
2.Replace all gaskets and O-ring with new ones and do not
reuse the old ones.
3.Use petrolatum to hold the parts in their specified places.