engine MITSUBISHI GALANT 1989 Service Repair Manual

POWER PLANT MOUNT - Specifications/Special Tool32-3
Items
Centermember and crossmember

Front roll stopper to No. 1 crossmember
Front roll stopper insulator nut
No. 1 crossmember installation nut
Gusset installation bolt
Right member installation bolt (front)
Right member installation bolt (rear)
Left member installation bolt (front)
Left member installation bolt (rear)
Front exhaust pipe to exhaust fitting
Front exhaust pipe to engine
Front exhaust pipe to exhaust manifold
Front exhaust pipe clamp
Front exhaust pipe rear installation bolt
Front exhaust pipe hanger installation bolt
Stabilizer bar bracket to crossmember
Stabilizer link installation nut
Transfer assembly installation bolt MIT
Al-r
Tie rod end ball joint to knuckle
Joint assembly and gear box connecting bolt
Steering gear box assembly to return tube
Steering gear box assembly to pressure hose
Steering gear box assembly to crossmember Lower arm clamp to crossmember (nut)
Lower arm clamp to crossmember (bolt)
Lower arm clamp shaft to body
Lower arm mounting bolt
Crossmember to body
Nmftlbs.
40-5029-36
50-6536-47
80-10058-72
70-8051-58
80-10058-72
70-8051-58
80-10058-72
70-8051-58
40-6029-36
30-4022-29
30-4022-29
30-4022-29
30-4022-29
10-157-l 1
30-4222-30
35-45 25-33
55-6040-43
60-8044-57
24-34 17-25
15-2011-14
12-189-1
3
12-18 9-13
60-8043-58
35-47 25-34
80-10058-72
100-12072-87
95-12069-87
80-10058-72
SPECIAL TOOL
ToolNumber
MB991
045
Name
Bushing remover
and installerUse
Removal and installation of the crossmember
bushing
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32-4POWER PLANT MOUNT -Troubleshooting/Engine Mounting
TROUBLESHOOTING
SymptomProbable cause Remedy
Excessive engine wob-
Cracked rubber parts of insulator Replace
ble or vibration (with en-
gine rn normal condition) Insufficiently tightened parts Retighten
Abnormal noise Insufficiently tightened parts Retighten
ENGINE MOUNTING
REMOVAL AND INSTALLATION
.
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30-40 Nm22-29 ft.lbs.
Removal steps
Post-installation Operation@Lower the Engine
50-65 Nm36-47 ftlbs.
43-56 ft.lbs.
1. Pressure hose (power steering) and high
pressure hose (air conditioner)
2. BracketOIA0306
3. Engine mount bracket and body connection bolt
4. Engine mount bracket
l + 5. Mounting stopper
INSPECTION
l Check each insulator for cracks or damage
.
l Check each bracket for deformation or damage.

POWER PLANT MOUNT - Engine Mounting/Transaxle Mounting32-5
Engine side
1
Mounting stopper
Arrow 01AQOO4
TRANSAXLE MOUNTING
REMOVAL AND INSTALLATION
(Refer to GROUP 15-Air Cleaner.)
>
SERVICE POINTS OF INSTALLATIONM32GDAK
5. INSTALLATION OF MOUNTING STOPPER
Install the mounting stopper of the engine mount bracket
so that the arrow faces the center part of the engine.
Post-installation Operation @Lower
the Transaxle
@Installation of the Air Cleaner
(Refer to GROUP
15-Air Cleaner.)
60-60Nm43-58ft.lbs.
40-50Nm29-36ft.lbs.
60-80 Nm43-58 ft.lbs.
Transaxle mount
Removal steps
1. Transaxle mount bracket and transaxle
connection bolt
2. Cap3. Transaxle mount bracket installation bolt
4. Transaxle mount bracket
5. Mounting stopper
OlA0009
INSPECTIONNUZGCAHZ
l Check each insulator for cracks or damage.
l Check each bracket for deformation or damage. TSB Revision

32-6POWER PLANT MOUNT - Engine Roll Stopper
ENGINE ROLL STOPPER
REMOVAL AND INSTALLATION
M32GF-
Pre-removal Operation*Raise and Suspend the Engine to the
Extent Force IS not applied to the Engrne
Mount
I
Post-installation Operationl Lower the EngineI

40-50 Nm29-36 ftlbs.I
40-50 Nm29-36 ft.lbs.
nA5

40-50 Nm29-36 ft.lbs.
40-50Nm29-36ft.lbs. 2
136-47
ft.lbs.*
50-65 Nm36-47 ft.lbs.
Front roll stopper bracket removal steps
1. Front roll stopper bracket and engineconnection bolt
2. Front roll stopper bracket installation bolt
l +3. Front roll stopper bracket
Rear roll stopper bracket removal steps 4. Rear roll stopper bracket and engineconnection bolt
5. Rear roll stopper bracket installation bolt
l +6. Rear roll stopper bracket
NOTE+ Indicates parts which should be temporarily tightened. and then fully tightened with the weight of the engine
supported by the body
INSPECTIONM32GcAH3
l Check each insulator for cracks or damage
.
l Check each bracket for deformation or damage.
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POWER PLANT MOUNT - Engine Roll Stopper32-7
SERVICE POINTS OF INSTALLATIONM32GJAB
6. INSTALLATION OF REAR ROLL STOPPER BRACKET

bRear roll
in.)
After temporarily tightening the rear roll stopper bracket,
tighten so that, in the unladen vehicle condition, the
dimension of the clearance of the insulator is the specified
dimension.
Rear roll
86.7-92.7 mm
46.7-52.7 mm(1.8-2.1 in.)
Front roll
stopper bracket
/ OlR0033
cAWD-M/T>Front roll
stopper
bracket
44-50 m
m
(1.7-2.0 in.
OlAOBlO
r
,-

After temporarily tightening the rear roll stopper bracket,
tighten so that, in the unladen vehicle condition, the
distance from the center hole of the insulator to the lower
edge of the bracket is the specified distance.
3. INSTALLATION OF FRONT ROLL STOPPER BRACKET
(1) Install the front roll stopper bracket so that the part where the round hole is made is facing the front of the
vehicle.
(2) After temporarily tightening the front roll stopper
bracket, tighten so that, in the unladen vehicle condi-
tion, the distance from the center hole of the insulator
to the lower edge of the bracket is the specified
distance.
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32-8POWER PLANT MOUNT -Centermember and Crossmember
CENTERMEMBER ANDCROSSMEMBER
REMOVAL AND INSTALLATIONM3ZYA-A
Pre-removal Operationl Disconnection of the Front Exhaust Pipe
when removing the Crossmember (Re-fer to GROUP 15-Exhaust Pipe and
Main Muffler.) aRaise
and Suspend the Engine to the
Extent Force IS not applied to the Engine
Mount
@Draining of the Power-steering Fluid (Re-
fer to GROUP 37A-Service Adjustment
Procedures.)
40-50 N29-36 ft
Post-installation Operationl Lower the Engine*Coupling of the Front Exhaust Pipe (Re-fer to GROUP 15-Exhaust Pipe and
Main Muffler.)
l Air bleeding of the Power-steering Fluid
(Refer to GROUP
37A- Service Adjust-
ment Procedures.)
l Adjustment of the Front Wheel Align-
ment
(Refer to GROUP
33A-Service Adjust-Iment Procedures.)
80-100 Nm
58-72 ft.lbs.
80-100 Nm
58-72 ft.lbs.
Removal steps
1. Front roll stopper bracket mounting bolt
2. Centermember installation bolts (front)
3.Stopper4.Bushing5.Bushing6.Collar
7. Centermember installation bolts (rear)
8.Centermember9.Stay llA0283
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ACTIVE-ELECTRONIC CONTROL SUSPENSION - Troubleshooting 33B-17
CHECKING ACCORDING TO CHARTS CLASSIFIED BY THE MALFUNCTION SYMPTOM
[A] DIAGNOSTIC TROUBLE CODE NO.54
No
Yes
b Excessive vehicle-height ad-justment
(overload) overload). time (due to -Unload the vehicle and turn* the ignition key to OFF; then
restart the engine and check
whether or not the system
functions normally.
Is the installation position of Nothe height sensor correct?
Yes Improper setting of the heightc sensor, or malfunction of the
height sensor. l Correct the installationcposition of the height sen-
sor, or adjust the vehicle
-height sensor rod.
l Check the height sensor. Refer to troubleshooting
hints [IO] and
[ll]classified by circuit.
Are the front strut and rear
NoMalfunction of the rolling
shock absorber unit air spr-* diaphragm.
Repair the rolling diaphragm,
or replace the shock absorber
ings in normal condition?Lunit.
(become folded)
Yes
Is the sound of operation
NoThe solenoid valves remain
heard from each solenoid closed, or there is air leakage
valve necessary for th
e
’ due to a malfunction of the
vehicle-height adjustment? valve seat.
Yes
Is the air pressure in the
vehicle-height adjustment
Nopressure line 950 kPa (135
psi) or higher?
I
Yes Damaged or disconnected
wiring of the high-pressure
switch, or incorrect vehicle
-height adjustment pressureline.
l Check the high-pressure switch circuit.
* Refer to troubleshooting hint [5] classified by circuit.
l Correct the clogging pro-
blem, or replace the air
tube.
Control unit malfunction.
[B] DIAGNOSTIC TROUBLE CODE NO.55
- No
Does the compressor func-
tion normally?
Yes Replace the control unit.c l Power is not supplied to
the compressor.Refer to troubleshooting
hint
[18] classified by cir-
cuit.
0 Improper compressor com- pression.
Is the air pressure in the
Novehicle-height adjustment
pressure line 760 kPa (108psi) or lower? High-pressure
switch
isRefer to troubleshooting hint
shorted____* [5] classified by circuit.
Yes Air leakage.
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33B-18 ACTIVE-ELECTRONIC CONTROL SUSPENSION - Troubleshooting
2. SERlflCE DATA OUTPUT
Item No. Service data item
Conditions for checking
Standard
11G sensorVehicle horizontal condition2.520.6V
After checking the above, shake the body to theThe indication fluctuate!
left and right.above and below 2.5V.
12/ Generator L terminalIgnition switch at ON; engine not running.LOW
While engine is running.HIGH
13Low-pressure switch
Internal pressure of the low-pressure tank 40 kPaON
(5.7 psi) or lower.
(In the actuator test mode, cause the return pump
relay to switch ON several times in succession.)
Internal pressure of the low-pressure tank
170 kPa
(24 psi) or higher.
(In the actuator test mode, conduct the anti-roll
action several
times in succession.)
OFF
14Throttle-position sensor Gradually depress the accelerator pedal. 500mV
I
5000mV
15High-pressure switch
Internal pressure of the high-pressure tank 710ON
kPa (101 psi) or lower.
(In the actuator test mode, activate the
vehicle-height-increase function and
vehicle-height-decrease function several times in
succession until the compressor is activated.)
Internal pressure of the high-pressure tank 1,000
kPa (142 psi) or higher.
OFF
(In the actuator test mode, cause the compressor
relay to switch ON several times in succession.)
16Ignition switch Ignition switch OFFOFF
I
Ignition switch ONON
17Control mode selection switch
Do not press any switch. 5.oov
“HIGH” switch (only) ON.
4.02V
“SOFT” switch (only) ON.2.71V
“AUTO” switch (only) ON.1.53V
“SPORT” switch (only) ON.o.oov
18Headlight switch Headlight switch OFFOFF
Headlight switch ONON
21Steering angle-velocity sensor
Turn the steering wheel at a very slow speed. Left turnST1 ST2
__I
’ E3
ON OF
F
OFF OFF
Right turn OFF ON
j
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ACTIVE-ELECTRONIC CONTROL SUSPENSION - Troubleshooting 33B-25
OperationThe generator
‘I-” terminal signal is used to deter-
pressor
operation, and is because activation of the
mine whether or not the engine is operating.
This is in order to reduce the frequency of
com-
system is possible while the engine is operating, or
at a vehicle speed of 3 km/h (2 mph) or higher.
Diagnostic
When the generator “L” terminal is LOW level (as a result of a short-circuit of the heavy-line circuit or
due to an abnormal condition of the generator) even
though the vehicle speed is 40 km/h (25 mph),
con-
trol is as described in the table below.Note,
however, that there is no detection if there is
damaged or disconnected wiring of the harness,
and the alarm light does not illuminate.
Diagnostic No. Attitude control Damping force
control Vehrcle-height
control
HIGH
Switch acceptance
SPORTAUTOSOFT
I12‘“L” terminal “L” logic
““L” terminal “L” logic: As a result of system operation conditions, the system is not ac\
tivated at a vehicle speed of less than 3 km/h (2mph). When the vehicle speed becomes 3 km/h (2 mph) or higher all fun\
ctions are normal. (Refer to the explanation of the opera-
tron.)
Service data indication
1 CodeNo. /Indication Display
I12The output voltage level of the12: ALT. LTERMI.
HIGH/LOW
generator “L” terminal is indicated.
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ECU terminal voltage (when connector is connected)
Terminal
No.Signal Condition Termrnal
voltage
52Generator ‘I” terminal signal When engine stalls
When engine is operating
When harness wiring is damaged or disconnected0.5-3v
13-15v
5v
Checking the generator “L” terminal circuit (with the connector d\
isconnected)
Terminal Connection destination or
M
easurement
No.measured part Tester connectronCheck condrtion
Standard
52 Generator
Voltage52 ground Ignition switch ON
2-5V
While engine is operatingB+
B+: Battery positive voltage

ACTIVE-ELECTRONIC CONTROL SUSPENSION - Troubleshooting 33B-29
Operation
The throttle-position sensor is the same for the ECM of engine and transaxle. The ECM estimates
the acceleration status of the vehicle according to
the sensor output.
Service data indication
) Code No 1 lndrcatron
Display
I
l4 1
The output voltage of the throttle 14: TPS 549mV-postron sensor IS indicated.I
ECU terminal voltages (when connector is connected)
Terminal
No.Condition Terminal
voltage
51
1 !
Throttle-posrtlon sensor signal During idleo-1v
When fully open5v
/ When there is damaged or disconnected wiringIov I
Checking the throttle-position sensor circuit (with the connector disco\
nnected) Terminal Connection
destrnation or MeasurementNo measured part Tester connection
Check condition
Standard
51Throttle-positron
sensor Resistance
51 -ground Change according to the throttle0.5-5 k0opening should be smooth and
within the standard value range shown at the right.
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