4WD MITSUBISHI ECLIPSE 1990 Service Manual

._._ -_- 1 -.
MODEL INDICATIONS
The following abbreviations are used in this manual for classification of model types.\
M/T: Indicates the manual transaxle, or models equipped ‘with the manual t\
ransaxle.
A/T: Indicates the automatic transaxle, or models equipped with the automatic\
transaxle.
MPI: Indicates the multi-point injection, or engines equipped with the multi-\
point injection.
DOHC: Indicates an engine with the double overhead camshaft, or a model equipp\
ed with such an engine,
Turbo: Indicates an engine with turbocharger, or a model equipped with such an \
engine.
2WD: Indicates the front wheel-drive vehicles.
4WD: Indicates the 4 wheel-drive vehicles.
HOW TO READ A CIRCUIT DIAGRAM
initionkey positions “ACC” ” N” and8“ST” is shown combined.
~
Service Manual.
o&ficates that current flows
Input
1 Indicates power1supply connection.
A : Female connector9.1 Male connector
\ Il-4’
Input Output output
is..used as an intermediate connec-

GENERAL
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O-l
CONTENTS
GENERAL DATA AND SPECIFICATIONS . . . . . . . ..._..................._........_ 9
TECHNICAL FEATURES
4WD (Four-wheel Drive)........................................710
PJT Safety-lock Syste m........................................7
..__............................... 3
Theft-alarm System (Option for 4WD
Vehicles) . . . . . . . . . . . . . . . . . . . . . . . . . .._._........_..................... 8

o-4GENERAL - Technical Features
BASIC CONSTRUCTION
The 4WD vehicles are equipped with
2.OL DOHC
16-valve turbocharged engine and incorporate new
technologies such as full time 4WD of center
differential type with viscous coupling differential
limiting for excellent running stability and excellent
Steering
l Light weight and compact rack and pinion
type for high steering response
l Tilt steering mechanism to give optimum
driving position
\driving across bad roads, and $-wheel independent
suspension for comfortable riding.
Adopted on
2WD vehicles are 2.OL DOHC 16-valveengine, MacPherson strut type front suspension
and torsion axle
typ.e 3-link rear suspension.
Rear suspension
l Self-aligning double wishbone type suspen-
sion for comfortable ride
(4WD)l Torsion axle type 3 link suspension for
outstanding driving stability
(2WD)l Negative chamber for outstanding steer-
ability during high speed driving
0 Anti-lift geometry for high stability duringbraking
lIntegral torsional bar type axle beam for
optimum roll stiffness (2WD)
\Front propeller shaft (3-piece
4-joint type)
lRobro joint to absorb lengthwise and angular
change and prevent transmission of vibrations.
(4WD)
IFront suspension
The front suspension of McPherson strut type
independent suspension system
l Under steer geometry for outstanding steering
stability
l Negative offset geometry for outstanding
stabil-ity at braking
0 Offset coil springs for comfortable ride
Brakes
l Cross piping dual type proportioning valvethat keeps balanced braking power even at
failure of the hydraulic system.
l Four wheel disc brake system for high
braking power.

GENERAL -Technical Featureso-74WD
(Four-wheel drive)The full time 4WD system adopts viscous coupling
unit (VCU) as the differential limiting device for thecenter differential of 4WD vehicle to achieve auto-
matic and ideal distribution of engine torque to the
front and rear wheels.
r_
Engine
00P0031Viscous coupling
Viscous coupling
(VCU) VP?limited slip differential (OptIOn)
A/TSAFETY-LOCK SYSTEMinterlock device) has been adopted to improve
JT safety-lock system (shift lock device and keysafety*FNKey interlock device
Ignition key cylinder
Shift lock device
Selector handle
AIT control cableShift lock cable
~ ^.._...

O-8GENERAL - Technical FeaturesTHEFT-ALARM SYSTEM (OPTION for4WD
VEHICLES)To make the vehicle theftproof, this system is so
designed that the headlights go on and off and the
horn is sounded intermittently for ‘about threeminutes when the locked door, hood or liftgate has
been forced open without using a key.
Furthermore, the starter circuit is interrupted so that
the engine may not be operated, making the vehicle
theftproof.
About 20 seconds after all doors are closed
and locked, the rear hatch is closed, and the
hood is closed---t SYSTEM ARMED4uthorized
I Unauthorized
A door, rf!ar hatch or hood is broken
to open + ALARMACTIVATED
Engineis disabled to start.
a-t
Driver opens door with the keyI
1SYSTEM DISARMED
0 1Normal starting-1
I
orrear hatch with the
- ALARM DEACTIVATED(SYSTEM DISARMED)
16Y3575
/

GENERAL - Vehicle Identification019
VEHICLE IDENTIFICATIONRooDAiAVEHICLE IDENTIFICATION
NUMBER LOCATION
The vehicle identification number
(V.I.N.) is located on a plate
attached to the left top side of the instrument panel.
VEHICLE IDENTIFICATION CODE CHART PLATEAll vehicle identification numbers contain 17 digits. The vehicle
number is a code which tells country, make, vehicle type, etc.
1st2nd
DigitDigit
---l--CountryMake
/
3rd
DigitI4thDigit
I
5th
Digit
1I-USAE-EagleVehicle
IOthersILinetvw3-6-
S-PassengerManual
Talon
carseat beltIZWDIC-T-
AutomaticTalonseat belt(4WD)
\
6thDigit
Price
class
\
7th
Digit
Sody
4-4-HighBdoor6-Hatch-Premrumback6Special
6th
Digit9th
Digit10th
Digit11th
Digit12th to17th
Digits
Engine
*CheckdigitsModel
yearPlantSerialnumberR-
1L-E-000001
2.0 liters1990DSM
/;gHE.in.):year99%99
MPI]U-2.0 liters1/;gHF.in.)
MPI-Turbo]:9X
NOTEl “Check digit” means a single number or letter X used to verify the accuracy of transcriptron of vehicle identification number.

r -.--
O-10GENERAL - Vehicle Identification
VEHICLE IDENTIFICATION NUMBER LISTVEHICLES FOR FEDERAL
V.I.N. (except sequence number)
Brand
4E3CT44RClLE
Eagle TalonQWD)Engine displacement
2.0 liter (122 cu,in.)[DOHC-MPI]
4E3CT54UClLE
4E3CT64UOLE
Eagle Talon (4WD)
2.0 liter (122 cu.in.)[DOHC-MPI-Turbo]Models CodeD22AMNHML4ED22AMRHML4ED22AMNPFL4ED27AMNGFL4E
VEHICLES FOR CALIFORNIA (Can also be sold in Federal States.)
1 V.I.N. (except sequence number)( Brand1 Engine displacementIModels Code4E3CT44tKILE
Eagle Talon (2WD)2.0 liter (122 cu.in.)[DOHC-MPI]
4E3CT54UOLE
4E3CT64UOLE
Eagle Talon (4WD)
2.0 liter (122 cu.in.1
[DOHC-MPI-Turbo]D22AMNHMLSED22AMRHMLSE
D22AMNPFLSE
D27AMNGFLSEVEHICLES FOR CANADA
1 V.I.N. (except sequence number)1 BrandEngine displacementModels Code
4E3BT44ROLE4E3BT54UOLE4E3BT64UOLE
Eagle Talon (4WD)
2.0 liter (122 cu.in.)[DOHC-MPI]D22AMNHML5ED22AMRHML5E
2.0 liter (122 cu.in.)[DOHC-MPI-Turbo]

2-2
t
featuring light unsprung weight.
. CONSTRUCTION DIAGRAM
<2WD>
<4WD>
Rubber insulator
/
lshing
Coil spring
,Strut assembly
I ,Rubber bushing
Stabili
Lowecarm
Rubber insulator
No.1 Crokmember
- -12AOO25Lower arm

FRONT SUSPENSION - General Information
c4WD>Items
Suspension system
CamberCaster
Toe-inmm (in.)
Coil springWire dia. x O.D. x free length
mm (in.)Coil spring identification color
Spring constantN/mm
(Ibs./in.)
Shock absorber
TypeMax. length
mm (in.)Min. length
mm (in.)
Strokemm (in.)Damping force [at 0.3
m/set. (.984 ft./set.)]Expansion
N (Ibs.)Contraction
N (Ibs.)Specifications
McPherson strut with coil spring and compression rod type
10’
+- 30’
2”18’ + 30’
0
zk 3 (0 f .l2)14.0 x 174.0
x 326.5 (.55 x 6.85 x 12.9)
Pink x 1
26 (146)
Hydraulic, cylindrical double-acting type
489 (19.25)
340 (13.39)
149 (5.87)
1,000 (220)
300 (66)

3-6REAR AXLE - Viscous Coupling Type Limited Slip Differential
Is
Side gear (L.H.)
Side gear (R.H.)1Differential case B
Pinion shaft
Thrust
washer
Viscous cokpling
3r
Side gear U3.H.)Differential case
B
, ,,Differential cover
I
‘Gear cagierPir
,Drive pinionfront bearing
Driv& pinionDrive gear
Bearing caprear bearing
ICokpanion flangellAo337
Normal operating range
Hump region
Difference in rotating speed between
right and left wheels (rpm)
RemarkslA hump occurs when there is a large differencein rotatinwheels..!speed between the right and leftlnce the large difference causes
violent shearing of the silicone oil in the
viscous couplin7.by the plates, the oil tempera-
ture rises (the SI Icone 011 expands), and the
torque abruptly rises. If the hump occurs, the
inner and outer plates enter a directly coupled(differential locked) state.llAOO5r
FUNCTIONS AND FEATURES(1) The viscous coupling type limited-slip differential
is functionally the same as
the conventional
mechanical type which reduces slipping of the
rear wheels for better performance when travel-
ing on a rough road or when getting out of a
snowy or muddy surface.
(2) The viscous coupling type limited slip differential
responds to a difference in rotating speed and
has outstanding characteristics for use in an
on-road
4WD vehicle, as it has no difference in
characteristics in the normal operating range
between when power is ON and when it is OFF,
and provides better straight ahead stability and
running performance.
(3) When a single wheel is slipping, a hump could
cause the differential to approach a locked state.
Provision is therefore made to provide a better
ability to get out even in cases of one in a million
such as a stuck state.