1999 MITSUBISHI LANCER EVOLUTION VI air bleeding

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MITSUBISHI LANCER EVOLUTION VI 1999 Workshop Manual ENGINE – Special Tools11-11
SPECIAL TOOLS
ToolNumberNameUse
MD998781Flywheel stopperHolding of flywheel and drive plate
MD998778Crankshaft
sprocket pullerRemoval of crankshaft sprocket
MD998719Pulle

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MITSUBISHI LANCER EVOLUTION VI 1999 Workshop Manual CLUTCH – On-vehicle Service21A-3
4. Measure the clutch pedal play.
Standard value (B): 1 – 3 mm
5. If the clutch pedal play is not within the standard value,
loosen the setting nut and move the pu

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MITSUBISHI LANCER EVOLUTION VI 1999 Workshop Manual CLUTCH – Clutch Control21A-5
CLUTCH CONTROL <L.H. DRIVE VEHICLES>
REMOVAL AND INSTALLATION
Pre-removal Operation
Clutch Fluid Draining
Air Cleaner RemovalPost-installation Operation
Air Cleaner I

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MITSUBISHI LANCER EVOLUTION VI 1999 Workshop Manual REAR AXLE – Troubleshooting <AYC>27-27
ACTUATOR TEST REFERENCE TABLE
The following items can be tested by driving the corresponding actuator forcibly using the MUT-II.
Item No.Check itemChecking re

REAR AXLE – Troubleshooting 27-27
ACTUATOR TEST REFERENCE TABLE
The following items can be tested by driving the corresponding actuator forcibly using the MUT-II.
Item No.Check itemChecking requirementsNormal value
10Air bleedingSupply current to proportioning
valve in accordance with steering
angle to operate directional valve.No air is to be bled from the
bleeder plug on the torque transfer
differential.
11Oil level checkLet the directional valve operate to
left and right 20 times.To be checked by oil level in
reservoir tank.
12Electric pump operationLet the electric pump operate for 5
seconds.Operation sounds of the electric
pump are to be heard.
13Clutch operation (left)Let the directional valve operate to
supply the maximum pressure to the
left clutch.The operation conditions are to be
checked by the speed difference
between left and right rear wheels
with the wheels raised. For details,
refer to AYC Operation Check on
P.27-34.
14Clutch operation (right)Let the directional valve operate to
supply the maximum pressure to the
right clutch.The operation conditions are to be
checked by the speed difference
between left and right rear wheels
with the wheels raised. For details,
refer to AYC Operation Check on
P.27-34.
15Control OFFTurn off the electric pump relay to
deactivate AYC control.During the test run, some
differences are to be recognized in
running behaviors between when
the system is ON and when it is
OFF.
NOTE
(1) The actuator test is feasible only when the following requirements are all satisfied.
All of inputs from four wheel speed sensors show 20 km/h or lower.
No system failure is registered.
The steering angle is within ±30 deg. from the neutral position.
(2) The actuator test comes to an end when either of the following conditions is met since the forced
actuation is canceled.
Either of inputs from four wheel sensors shows higher than 20 km/h (with exception of Item
No.15 “Control OFF”).
Some trouble with the system is registered.
Forced activation time expires.
MUT-II is removed.
The clear key of MUT-II is operated.

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MITSUBISHI LANCER EVOLUTION VI 1999 Workshop Manual REAR AXLE – On-vehicle Service <Vehicles with AYC>REAR AXLE – On-vehicle Service <Vehicles with AYC>27-34
BLEEDING
1. Lift up the vehicle.
2. Connect the MUT-II to the 16-pin diagnosis connector.

REAR AXLE – On-vehicle Service REAR AXLE – On-vehicle Service 27-34
BLEEDING
1. Lift up the vehicle.
2. Connect the MUT-II to the 16-pin diagnosis connector.
Caution
Before connecting or disconnecting the MUT-II,
always turn off the ignition switch.
3. Turn on the ignition switch.
4. Operate the MUT-II (Item No.10) to activate the hydraulic
unit forcibly.
NOTE
(1) The forced activation (air bleeding mode) will be
automatically canceled after 5 minutes operation. It
can also be canceled forcibly by operating the clear
key on the MUT-II.
(2) While this function is being disabled by the fail-safe
function, the forced activation of the hydraulic unit
can not be executed.
5. Remove the cap of the left bleeder screw on the torque
transfer differential and connect a vinyl hose.
6. Gradually turn the steering wheel clockwise from the
straight-ahead position. At this time, loosen the left bleeder
screw and check that fluid is discharged with air.
7. After air has been completely discharged, tighten the
bleeder screw.
Caution
While the system is being bled of air, add fluid as
necessary to ensure that it is left in the oil reservoir
during the entire procedure.
8. Repeat steps (6) and (7) two to three times until no air
bubbles are recognized in the fluid that comes out. Then,
tighten the bleeder screw to the specified torque.
Tightening torque: 9 Nm
9. Perform steps (5) through (8) for the right bleeder screw.
Note, however, that the steering wheel should be turned
counterclockwise.
10. After the system has been completely bled of air, check
for the fluid level. (Refer to P.27-33.)
Caution
If the system is not completely bled of air, the hydraulic
unit could generate noise, degrading pump durability.
AYC OPERATION CHECK
1. Lift up the vehicle.
2. Connect the MUT-II to the 16-pin diagnosis connector.
Caution
Before connecting or disconnecting the MUT-II, always
turn off the ignition switch.
3. Start the engine.
4. Operate the MUT-II with the transmission in 2nd or a
higher gear and check to ensure that the vehicle speed
is higher than 10 km/h using the Data List (Item 10).
Bleeder
screws Vinyl hose

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MITSUBISHI LANCER EVOLUTION VI 1999 Workshop Manual BASIC BRAKE SYSTEM – Master Cylinder and Brake Booster35A-5
MASTER CYLINDER AND BRAKE BOOSTER
<L.H. DRIVE VEHICLES>
REMOVAL AND INSTALLATION
Pre-removal Operation
Brake Fluid Draining
Air Intake

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