fuel MITSUBISHI ECLIPSE 1991 Service Manual

BACKUPGROUP INDEX &ma
;r Service Manual
LASER
TALON
1991
Volume-l
Engine, Chassis
& Body
FOREWORDThis Service Manual has been prepared with the
latest service information available at the time of
‘* publication.It is subdivided into various group
categories and each section contains diagnosis,
disassembly, repair, and installation procedures
along with complete specifications and tightening
references. Use of this manual will aid in properly
performing any servicing necessary to maintain or
restore the high levels of performance and reliabilitydesigned into these outstanding vehicles.
This BACKUP DSM manual IS to be used ONLY as a BACKUP. Please DO NOT REDISTRIBUTEWHOLE SECTIONS. This BACKUP was sold to you under the fact that you do indeed OWNa GENUINE DSM MANUAL. It CANNOT BE considered a REPLACEMENT (Unless your originalmanual was lost or destroyed.)Please See
README.N or README.HTML for additional information
Thank you. G~mm~emymanual@hotma~l.com
1,
wA
CHRYSLER
CORPORATION
Chrysler Corporation reserves the right to make changes in design 0’: tomake additions to or improvements in its products without lmqoslngd ., . any obligations upon itself to install them on its products previouslymanufactured.
0 1990 Mitsubishi Motors CorporationPrinted in U.S.A.Introduction and
Master
Troubleshooting. . . . . .,. . . . . . . . . r...m,
Lubrication and Maintenance . . . . . . . . ‘-0‘8
; “. i,
.Front Suspension. . . . . . . . . . . . . . ..*............d...Rear Axle
. . . . . . . . . . . . . . . . . . . . . . . . . . . . ..‘.....................
/
ServiceBrakes-Parking. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Clutch. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..~......................‘t.
Cooling. . . . . . . . . . . . . . . . . ..i....................................
,., .‘,-,
Engine..i....~....r...............~....~.*,.~.~.~,‘~~...;..~~..Intake and Exhaust
. . . . . . ..L....................Fuel System
. . . . . . . . . . . ..ti.......r................~...Propeller Shaft
.......................................IRear
Suspensiori.............................y.f...
ManualSteering- Power.....................................Manual
I
transaxle-Automatic .............:;i...,;.....;Wheels
and Tires.................................
Body.............................................................Heater & Air Conditioning
..............Emission
Contr6l Systems..............
INOTE: For Electrical, refer toVolume-2 “Electrical”.

20INTRODUCTION AND MASTER TROUBLESHOOTING - Towing and Hoisting
Frame contact support location
OOAOI 71
: 928mm (36.5 in.)
: 998mm (39.3 in.)
IRearISAFETY PRECAUTIONS
The following precautions should be taken when
towin the
vehicle.
1.DO NOT LIFT OR TOW THE VEHICLE BY ATTACHING TOOR WRAPPING AROUND THE BUMPER.
2. Any loose or protruding parts of damaged vehicle such as
hoods, doors, fenders, trim, etc., should be secured prior tomoving the vehicle.
3.Operator should refrain from going under a vehicle while it
is lifted by the towing equipment, unless the vehicle in
adequately supported by satefy stands.
4. Never allow passengers to ride in a towed vehicle.
5. State and local rules and regulations must be followed
when towing a vehicle.
Refer to the section “Special Handling Instructions for AWD
Models”.
HOISTING
POST TYPESpecial care should be taken when raising the vehicle on a
frame contact type hoist. The hoist must be equipped with the
proper adapters in order to support the vehicle at the proper
locations.Caution
When service procedures require removing rear sutpen-
sion, fuel tank, spare tire and lift gate, place addmonal
weight on rear end of vehicle or anchor vehicle to hoist to
prevent tipping of center of gravity changes.
FLOOR JACK
The usual type of floor jack is used at the following locations.
Front:
Under the mid point of centermember
Under the mid point of crossmember
Rear:
Under the jack up bracket of rear floor pan
Under the rear differential
Cautions
1. Never use a jack at the lateral rod or rear suspension
assembly.

2.In order to prevent scarring the centermember or crossmember
, place a piece of cloth on the
jack’s contact surface (to prevent corrosion caused by
damage to the coating).
3. A floor jack must never be used on any part of the
underbody.
4.Do not attempt to raise one entire side of the vehicle byplacing a jack midway between front and rear wheels.
This practice may result in permanent damage to the
body.

26INTRODUCTION AND MASTER TROUBLESHOOTING - :;:%:a=and
Items
Chassis
TireFront suspension
TypeRear suspension
We
Brake
Type
SteeringGear typeFront
RearGear ratio
Fuel tank
Capacityliters (gals.)

1.8L Engine
“Medium”Pl85/70R14
PI 85/70Rl4
Independent
strut
Independentstrut
3l\Fk Torsion&k-k Torsion
Disc
DiscDisc
Disc
Rack and
pinion
03
Rack and
pinion
cn60 (16)
60
(16)
ItemsVehicle dimensions
mm(in.)Overall length
1Overall width
2Overall height
3Wheel base
4
TreadFront5
Rear6
OverhangFront7
Rear8Minimum running ground
9
clearancemm (in.)
Angle of approachdegrees
10Angle of departure
degrees 11
Vehicle weight
kg (Ibs.)Curb weightsMiT
Al-rGross vehicle weight rating
Gross axle weight rating
Front
RearSeating capacity
EngineModel No.
1.8L Engine
“Medium”2.0L DOHC
Kr%n?u rbo)
P205/55Rl6 89H
;;5/55R16 89V%55R16
88V
Independentstrut
zx;;k Torsion
Disc
Disc
Rack and
pinion
co60 (16)
2.0L DOHC
#b”;
P205/55Rl6 89
or
205155R16 88V
Independentstrut
3Lnk Torsion
Disc
Disc
Rack and
pinion
co
60 (16)
2.0L DOHC Engine(Non-Turbo)
4,330(I 70.5)
1,690(66.5)
1,306(51.4)
2,470(97.2)
1,465(57.7)
1,450(57.1)
950(37.4)
910(35.8)
160(6.3)
15.3
18.1”
1,230 (2,712)
1,255 (2,767)
1,630 (3,594)930 (2,050)
700 (1,543)
4
4G63
2.0L DOHC Engine
(FWD-Turbo)
4,350(171.3)
1,700(66.9)
1,306(51.4)
2,470(97.2)
1,465(57.7)
1,450(57.1)
960(37.8)
920(36.2)
160(6.3)
13.2”
18.1”
1,260 (2,778)
1,295 (2,855)
1,670 (3,682)965 (2,127)
705 (1,554)
1
4G63
2.0L DOHC Engine
(AWD-Turbo)
4,380(I 72.4)
1,700(66.9)
1,321(52.0)
2,470(97.2)
1,465(57.7)
1,455(57.3)
960(37.8)
950(37.4)
158(6.2)
14.0”
17.6”
1,405 (3,097)
1,440 (3,175)
I,81 0 (3,990)
1,005 (2,216)
805 (1,775)
4
4G63

INTRODUCTION AND MASTER TROUBLESHOOTING - f~EEaZ% acld27
=r
9..
Items
TransaxleModel No.
Manual transaxle
Automatic transaxle
Clutch
Type
Chassis
TireFront suspension
TypeRear suspension
Type
Brake
Type
SteeringGear type
Gear ratio
Fuel tank
Capacity
2.0L DOHC Engine2.0L DOHC Engine2.0L DOHC Engine
(Non-Turbo)(FWD-Turbo)(AWD-Turbo)
F5M22F5M33W5M33
F4A22F4A33W4A33Dry-single disc
Dry-single discDry-single disc& diaphragm spring& diaphragm spring& diaphragm spring
P205/55R16 89HP205155R16 89VP205/55R16 89Vor 205/55R16 89Vor 205/55R16 88Vor 205/55R16 88Vor 205/55R16 88VIndependent strut
Independent strutIndependent strut
3-Link Torsion axle3-Link Torsion axleDouble wishbone
Front
Disc
DiscDisc
RearDisc
DiscDiscRack and pinion
Rack and pinionRack
,and pinion
03coccliters (gals.) 60 (16)
60 (16)60 (16)
)
ENGINE SPECIFICATIONS
Items4G374G63 Non-Turbo4G63 Turbo
TypeIn-line SOHCIn-line DOHCIn-line DOHC
Number of cylinders
444
Boremm (in.) 80.6 (3.17)
85.0 (3.35)85.0 (3.35)
Strokemm (in.) 86.0 (3.39)
88.0 (3.46)88.0 (3.46)
Piston displacement
cm3 (cu.in.) 1,755 (107)1,997 (122)1,997 (122)Compression ratio
9.09.07.8Firina order
1-3-4-21-3-4-21-3-4-2
TRANSAXLE SPECIFICATIONS
ItemsF5M22F5M33W5M33F4A22F4A33W4A33
TypeGear ratio
1 st
2nd
3rd
4th
5th
Reverse
TransaxlePrimary reduction ratio
Secondary reduction
ratio
Transfer
5-speed M/T5-speed M/T
3.363
3.090
1.947
1.833
1.285
1.217
0.939
0.888
0.756
0.741
3.0833.166
5speed M/T4-speed A/T4-speed AIT
3.083
2.8462.551
1.6841.5811.488
1.115
1.0001 .ooo
0.8330.6850.685
0.666--
3.166
2.1762.176
Qspeed AIT
2.551
1.488
1 .ooo
0.685
-
2.176
1.096
3.9411.2081.275
1.1251.2281.228
3.4373.866
3.5623.222
3.600
-1.090--1.090

INTRODUCTION AND MASTER TROUBLESHOOTING - Mast& Tro6blerhootbia
MASTER TROUBLESHOOTING7 *
I,._ ,...
r. ENGINE OVERHEATSi ”
SymptomEngine overheatsProbable causeCooling system faulty
Incorrect ignition timingReference page: I._),7-5
8-169
ENGINE WILL NOT CRANK OR CRANKS SLOWLY
SymptomEngine will not crank
or cranks slowlyProbable causeStarting system faulty
,’
Reference page8-153
ENGINE WILL NOT START OR
HbRD TO START (CRANKS OK)
SymptomProbable causeReference page
Engine will not start or hard toNo fuel supply to injector
-start (Cranks OK)
Injection system problems
-Ignition system problems
8-16!$/ ”;Vacuum leaks11-5..“,:’l Purge control valve hose25-4
l Vacuum hoses
l Intake manifoldl Air intake plenum
l Throttle body
l EGR valveCompression too low
g-23,‘, :. ” ‘,;A;ROUGH IDLE OR ENGINE STALL
Symptom
Rough idle or engine stallsProbable cause
Vacuum leaks
l Purge control valve hosel Vacuum hosesl Intake manifoldl Air intake plenuml Throttle bodyl EGR valve
“. ._
Reference page or remedy
11-525-4
Ignition system problems
Idle speed set too low8-169Check idle speed control sys-
tem
Idle mixture too lean or too rich
Fuel injection system problems
Exhaust gas recirculation
(EGR) system
problems
Engine overheatsCompression too low
-
-
25-l 57-5
9-23

30INTRODUCTION AND MASTER TROUBLESHOOTING - Master Troubleshooting
ENGINE HESITATES OR POOR ACCELERATION
SymptomEngine hesitates or poor
accelerationProbable causeIgnition system problem
Vacuum leaks
l Purge control valve hose
l Vacuum hosesl Intake manifoldl Air intake plenum
l Throttle bodyl EGR valveReference page
8-169
11-525-4
Air cleaner clogged
Fuel line clogged
Fuel injection system problem
Emission control system problem
l EGR system always on
Engine overheats
Compression too low
-
-
-25-15
7-5
9-23
ENGINE
DIESELING
SymptomEngine dieseling (runs after
ignition switch is turned off)Probable causeIncorrect ignition timingReference page
8-169
EXCESSIVE OIL CONSUMPTION
Symptom
Excessive oil consumptionProbable cause
Oil leak
Positive crankcase ventilation line clogged.
Valve stem seal worn or damaged.Valve stem worn.
Piston ring worn or damaged.Reference page or remedy
Repair as necessary.25-7
g-55.114
g-55.114
g-66,128

INTRODUCTION AND MASTER TROUBLESH’OOTING .- Master ~pAi&oOti~31POOR FUEL MILEAGE
../, *,, /S./..‘, _I, #_.a,‘.rr?
Symptom
Poor fuel mileageProbable cause
Fuel leak
Air cleaner clogged.Ignition system problems
Reference page or remedy”Repair as necessary.
-8-169
IFuel injection system problems.I-ICompression too low.9-23
Tires improperly inflated.22-3
Clutch slips.6-4
Brakes drag.5-7I
NOISE
Symptom
NoiseProbable cause
Loose bolts and nuts.
Engine noiseReference page or remedy
Retighten as necessary
9-23
’
HARD STEERING
Symptom
Hard steeringProbable causeLoose power steering oil pump belt
Low fluid levelAir in power steering system
Low tire pressure
Reference page or remedy19-12
Replenish19-13
22-3
Excessive turning resistance of lower arm ballExcessively tightened of steering gear box
IImproper front wheel alignment2-8
Excessive turning resistance of tie-rod ballioint2-35
1 i-23.30
19-8.10Sticky flow control valve
Bent rack in steering gear box‘.19-4119-23.30
POOR RETURN OF STEERING WHEEL TO CENTERSymptom
1Probable causeIReference pageI
Poor return of steering wheel tocenterImproper front wheel alignment
2-8
Improper tire pressure22-3
Excessive tightened rack support cover19-23.30
I-- ~~~Damaged front wheel bearingI2-12I

LUBRICATION AND’ I
MAINTENANCE
CONTENTSGENERAL INFORMATION
..............................2MAINTENANCE SERVICE
...............................7Air
CleanerElement.....................................7Automatic Transaxle....................................
11Ball Joint and Steering Linkage Seals
........13Brake Hoses
.................................................12
DiscBrakePads...........................................12-lbDrive Belt (For Water Pump and
Alternator).....................................................8
DriveShaftBoots.........................................13
EngineCoolant.............................................12
EngineOil.....................................................9
EngineOilFilter...........................................9Exhaust System
............................................13
FuelHose.....................................................7
FuelSystem.................................................7
ManualTransaxle..........................................10
RearAxle......................................................13
SparkPlugs...................................................8
TimingBelt......................................................8RECOMMENDED LUBRICANTS AND
LUBRICANT CAPACITIES TABLE
..................4SCHEDULED MAINTENANCE TABLE
............3

o-2LUBRICATION AND MAINTENANCE - General Information
GENERAL INFORMATIONNGQPA--Maintenance and lubrication service recommenda-
tions have been compiled to provide maximum
protection for the vehicle owner’s investment
against all reasonable types of driving conditions.
Since these conditions vary with the individual
vehicle owner’s driving habits, the area in which the
vehicle is operated and the type of driving to which
the vehicle is subjected, it is necessary to prescribe
lubrication and maintenance service on a time
frequency as well as mileage interval basis.
Oils, lubricants and greases are classified and
graded according to standards recommended by theSociety of Automotive Engineers (SAE), the Amer-
ican Petroleum Institute (API) and the National
Lubricating Grease Institute
(NLGI).MAINTENANCE SCHEDULES
Information for service maintenance is provided
under “SCHEDULED MAINTENANCE TABLE”.
Three schedules are provided; one for “Required
Maintenance”, one for “General Maintenance” and
one for “Severe Usage Service”.
Item numbers in the “SCHEDULED MAINTE-
NANCE TABLE” correspond to the item numbers in
the “MAINTENANCE SERVICE” section.
SEVERE SERVICEVehicles operating under severe service conditions
will require more frequent service.
Component service information is included in
appropriate units for vehicles operating under one ormore of the following conditions:
1.Trailer towing or police, taxi, or commercial type
operation2. Operation of Vehicle
(1) Short-trip operation at freezing temperature
(engine not thoroughly warmed up)
(2) More than 50% operation in heavy city
traffic during hot weather above
32°C (90°F)(3) Extensive idling
(4) Driving in sandy areas
(5) Driving in salty areas
(6) Driving in dusty conditions
ENGINE OIL
The SAE grade number indicates the viscosity of
engine oils, for example, SAE 30, which is a single
grade oil. Engine oils are also identified by a dual
number, for example, SAE
lOW-30, which indicates
a multigrade oil.
The API classification system defines oil perform-
ance in terms of engine usage. Only engine oil
designed “For Service SG” or “For Service
SGKD”,when available, should be used. These oils contain
sufficient chemical additives to provide maximum
engine protection. Both the SAE grade and the API
designation can be found on the container.Caution
Test results submitted to EPA have shown thatlaboratory animals develop skin cancer after
prolonged contact with used engine oil. Accor-
dingly, the potential exists for humans
to de-
velop a number of skin disorders, including
cancer, from such exposure to used engine oil.
Care should be’ taken, therefore, when changingengine oil, to minimize the amount and length of
exposure time to used engine
pi! on your skin.
Protective clothing and gloves, that cannot be
penetrated by oil, should be worn. The skin
should be thoroughly washed with soap and
water, or use waterless hand cleaner, to removeany used engine oil. Do not use gasoline,
thinners, or solvents.
GEAR LUBRICANTSThe SAE grade number also indicates the viscosity
of Multi-Purpose Gear Lubricants.
The API classfication system defines gear lubricants
in terms of usage. Typically gear lubricants conform-ing to API
GL-4 or GL-5 with a viscosity of SAE
75W-85W are recommended for manual transaxle.
LUBRICANTS
- GREASES
Semi-solid lubricants, bear the NLGI designation andare further classified as grades 0, 1, 2, 3 etc.
Whenever “Chassis Lubricant” is specified, Multi-
Purpose Grease,
NLGI grade 2 should be used.
MOPAR Multi-Mileage Lubricant, P&t Number
2525035 or equivalent, meets these requirement
and is recommended.
FUEL USAGE STATEMENT
Use gasolines having a minimum anti-knock index
(Octane Value) of 87,
(R + M)/2. This designation is
comparable to a Research Octane Number of 91.
Unleaded gasolines only must be used in vehicles
equipped with catalyst emission control systems.
All vehicles, so equipped, have labels located on the
instrument panel and on the back of fuel filler lid that
state, “UNLEADED GASOLINE ONLY”. These vehi-
cles also have fuel filler tubes especially designed toaccept the smaller diameter unleaded gasoline
dispensing nozzles only.
MATERIALS ADDED
TO FUELIndiscriminate use of fuel system cleanng agents
should be avoided. Many of these materials in-
tended for gum and varnish removal may contain
highly active solvents or similar ingredients that can
be harmful to gasket and diaphragm materials usedin fuel system component parts.

LUBRICATION AND MAINTENANCE - Scheduled MaintenanCe Table. &3
SCHEDULED MAINTENANCE TABLE1
- SCHEDULED MAINTENANCE SERVICES FOR EMISSION CONTROL AND PRO;;
VEHICLE PERFORMANCEInspection and Services should be performed any time a malfunction is observed or suspected. Retain
receipts for all vehicle emission services to protect your emission warranty.
Kilometers in Thousands 24 48 72 80 96
No.Emission Control System Maintenance
Service IntervalsMileage in Thousands 15 30 45 50 60
1Check Fuel System (Tank, Line and Connections and Fuel Filler Cap) for Leaks
Every 5 YearsorX
2Check Fuel Every 2 Years for Leaks or DamageorXX
3Replace Air Cleaner Element
atXX
4Replace Spark Plugs
atXXGENERAL MAINTENANCE SERVICE FOR PROPER VEHICLE PERFORMANCE
Yo. General Maintenance
Service IntervalsKilometers in Thousands 24 48 72 80 9cMileage in Thousands 15 30 45 50
6C
5Timing Belt (Including theBalancer Belt)ReplaceatX
6Drive Belt (for Water Pump
and Alternator)Inspect for tensionatXX.’
Non-TurboChange Every YearEvery 12 000 kmOr (7,500 miles).
7Engine Oil
TurboChange Every 6 MonthsEvery 8,000 km
(5,000 miles)
Non-TurboChange Every Yearor X X XX
8Engine Oil
Filter
TurboChange Every YearEvery 16,000 km
(10,000 miles)
9Manual Transaxle OilInspect Oil LevelatX.X
Inspect Fluid Level Every Yearor X X XX
10Automatic Transaxle Fluid
Change FluidatXX11 Engine Coolant
Replace Every 2 YearsorXX
12Disc Brake PadsInspect for Wear Every Yearor X X XX13 Brake Hoses
Check for Deterioration or Leaks Every YearX X XX
l 4Beiloint and Steering Linkageinspect for Grease Leaks and Damage Every
2 YearsorXX
15Drive Shaft BootsInspect for Grease Leaks and Damage Every Yearor XXXX
Rear Axle
With LSDChange OilXX1 6Inspect Oil LevelXX
Exhaust System (Connection17Portion of Muffler, Pipings andCheck and Service as Required Every 2 Yearsorx -xConverter Heat Shields)
NOTELSD: Limited-slip differential