weight MITSUBISHI MONTERO 1998 Service Manual

Ign. Ignition 

In. Inches 

Inj. Injector 











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"J" ABBREVIATION TABLE
"J" ABBREVIATION TABLE







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ABBREVIATION DEFINITION 










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J/B Junction Block 











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"K" ABBREVIATION TABLE
"K" ABBREVIATION TABLE







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ABBREVIATION DEFINITION 










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k/ohms 1000 ohms (kilo as in k/ohms) 

kg Kilograms (weight) 

kg/cm Kilograms Per Square Centimeter 

KAM Keep Alive Memory 

KAPWR Keep Alive Power 

KM/H Kilometers Per Hour 

KOEO Key On Engine Off 

KOER Key On Engine Running 

KS Knock Sensor 











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"L" ABBREVIATION TABLE
"L" ABBREVIATION TABLE







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ABBREVIATION DEFINITION 










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L Liter(s) 

L/D Light Duty 

LCD Liquid Crystal Display 

LED Light Emitting Diode 

LH Left Hand 

LOS Limited Operation Strategy 

LT BLU Light Blue 

LT GRN Light Green 

LUS Lock-Up Solenoid 

Lbs. Pounds 

Lt(s). Light(s) 

Lugg. Luggage 











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"M" ABBREVIATION TABLE
"M" ABBREVIATION TABLE







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ABBREVIATION DEFINITION 










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mA Milliamps 

mV Millivolts 

mfd. Microfarads 

Transportation (DOT) approved, DOT 4BW or DOT 4BA refrigerant
containers.
7) Never overfill refrigerant containers. The safe filling
level of a refrigerant container MUST NOT exceed 60 percent of the
container's gross weight rating. Store refrigerant containers at
temperature less than 125
F (52C).
8) R-134a refrigerant is sold and stored in 30- or 50-pound
Light Blue containers, while Freon (R-12) is stored in White colored
containers.
9) Refrigerant R-12 and R-134a must never be mixed, as they
and their desiccants and lubricants are not compatible. If
refrigerants are mixed, system cross-contamination or A/C system
component failure may occur. Always use separate servicing and
refrigerant recovery/recycling equipment.
10) Follow equipment manufacturer instructions of all service
equipment to be used. The Material Safety Data Sheet (MSDS), provided
by refrigerant manufacturer/suppliers, contains valuable information
regarding the safe handling of refrigerants.
11) Before connecting refrigerant lines always lubricate "O"
rings using appropriate refrigerant oil.
12) Always plug or cap A/C system refrigerant lines and
component connections as soon as possible to protect components from
moisture and/or dust. DO NOT remove plugs or caps until ready to
install component.
13) Always use a back-up wrench when tightening or loosening
fittings.
IDENTIFYING R-134a SYSTEMS & COMPONENTS
To prevent refrigerant cross-contamination, use following
methods to identify R-134a based systems and components.
Fittings & "O" Rings
All R-134a based A/C systems use 1/2" - 16ACME threaded
fittings (identifiable by square threads) and quick-connect service
couplings. See Fig. 1. Besides the use of these fittings, most
manufacturers will use Green colored "O" rings in R-134a systems.
Fig. 1: Identifying R-134a Fittings & Quick-Connect Service Couplings
Courtesy of Audi of America, Inc.
Underhood A/C Specification Labels
Most R-134a based systems will be identified through the use

Other Means Of Identification
Refrigerant R-134a, when viewed through a sight glass, may
have a "milky" appearance due to the mixture of refrigerant and
lubricating oil. As the refrigerant and oil DO NOT exhibit a "clear"
sight glass on a properly charged A/C system, most R-134a systems have
no sight glass.
REFRIGERANT OILS
NOTE: Use ONLY the specified oil for the appropriate system or A/C
compressor. Always check vehicle underhood A/C specification
label or A/C compressor label before adding refrigerant oil
to A/C compressor/system. See Figs. 2 and 3. Always use
refrigerant oil specified on vehicle underhood A/C
specification label if different from the following list.
Refrigerant R-12 based systems use mineral oil, while R-134a
systems use Polyalkylene Glycol (PAG) oils. Using a mineral oil based
lubricant with R-134a will result in A/C compressor failure due to
lack of proper lubrication. The following R-134a refrigerant oils are
currently specified:
Use DENSO/ND-Oil 8 refrigerant oil on Nippondenso
compressors. Use SUN PAG 56 refrigerant oil on Sanden compressors.
NOTE: PAG oils absorb moisture very rapidly, 2.3-5.6 percent by
weight, as compared to a mineral oil absorption rate of
0.005 percent by weight.
SERVICE EQUIPMENT
A/C systems using R-134a refrigerant and PAG lubricants
cannot use R-12 refrigerant or mineral oil lubricants. R-134a
refrigerant is NOT compatible or interchangeable with R-12
refrigerant. Separate sets of hoses, manifold gauge sets and
recovery/recycling equipment are required to service the different
systems. This is necessary to avoid cross-contaminating and damaging
A/C system. A single set of A/C service equipment cannot be cleaned
thoroughly enough to be used with both types of refrigerant.
All equipment used to service A/C systems using R-134a must
be U.L. listed and certified to meet SAE standard J2210. The service
hoses on the manifold gauge set must have manual (turn wheel) or
automatic back-flow valves at the service port connector ends. This
will prevent refrigerant from being released into the atmosphere.
For identification purposes, R-134a service hoses must have a
Black stripe along its length and be clearly labeled SAE J2196/R-134a.
The low pressure test hose is Blue with a Black stripe. The high
pressure test hose is Red with a Black stripe, and the center test
hose is Yellow with a Black stripe.
R-134a manifold gauge sets can be identified by one or all of
the following: Labeled FOR USE WITH R-134a on set, labeled HFC-134a or
R-134a on gauge face, or by a Light Blue color on gauge face. In
addition, pressure/temperature scales on R-134a gauge sets are
different from R-12 manifold gauge sets.
SYSTEM SERVICE VALVES
SCHRADER-TYPE VALVES
NOTE: Although similar in construction and operation to a tire
valve, NEVER replace a Schrader-type valve with a tire valve.

same axle to eliminate uneven braking behavior. Always wash drums
after servicing or before installing.
DRUM INSPECTION









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Condition Code Procedure
Balance weight missing .. .. ........ No service suggested or
required.
Bell-mouthed, affecting
performance ............ A ....... Require reconditioning or
replacement.
Cooling fin broken ...... .. ........ No service suggested or
required.
Cracked ................. B ............ Require replacement.
Drum diameter is greater
than OEM "machine to"
specifications but less
than "discard at"
specifications, and the
drum does not require
reconditioning ......... 1 ........ (1) Suggest replacement.
Drum diameter will exceed
OEM "machine to"
specifications after
required
reconditioning ......... B ........ ( 2) Require replacement.
Hard-spotted ............ 2 ....... Suggest reconditioning or
replacement.
Measured diameter is
greater than OEM discard
specifications ......... B ............ Require replacement.
Out-of-round (runout),
affecting performance .. A ....... Require reconditioning or
replacement.
Out-of-round (runout),
exceeding manufacturer's
specifications ......... B ....... Require reconditioning or
replacement.
Scored .................. B ....... Require reconditioning or
replacement.
Surface threaded due to
improper machining ..... B ....... Require reconditioning or
replacement.
Tapered, affecting
performance ............ A ....... Require reconditioning or
replacement.
( 1) - Only applies to vehicles for which OEM "machine to"
specifications exist. If OEM does not supply "machine to"
specifications, the drum may be worn to discard
specifications.
( 2) - If OEM does not supply "machine to" specifications, you
may machine to discard specifications.









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ELECTRICAL PUMPS AND MOTORS
Copied fuel pump conditions from engine UIGs & deleted
pulsator from leaking conditions.
ELECTRICAL PUMP AND MOTOR INSPECTION









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Diamante, Eclipse,
Montero Sport & Galant .......................... 6.9-7.1 (175-181)\
Mirage ........................................... 6.4-6.6 (164-167)\
Montero .......................................... 7.3-7.5 (186-191)\
3000GT ........................................... 7.0-7.2 (177-182)\









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3) Tighten lock nut, and ensure brake pedal height is within
specification. Start engine to evacuate brake booster chamber. Stop
engine, and apply brake several times to remove vacuum from brake
booster.
4) Using hand pressure, depress brake pedal to measure free
play before resistance is felt. Free play distance for all models is
0.10-0.31" (3-8 mm). If distance is not within specification, it is
probably caused by excessive play between the brake pedal arm and the
clevis pin. Check and replace as necessary.
5) Start engine and apply 110 lbs. (490 N) of pressure to
brake pedal. With the carpet pulled back, measure the distance between
the brake pedal and the floorboard. If the distance is not 3.1-3.5"
(80-90 mm) check for air in brake hydraulic system, brake adjustment
or defective parking brake component or adjustment. Adjust or repair
as necessary.
LOAD-SENSING PROPORTIONING VALVE (LSPV)
Montero
1) Park vehicle on level surface. Remove excess weight from
vehicle. Make sure the lever is all the way towards the valve side.
Measure length of entire spring. See Fig. 1.
If spring length is not within specification, adjust spring
support until correct length is obtained. See LSPV SPRING LENGTH
table.
Fig. 1: Adjusting Load-Sensing Proportioning Valve Spring (Montero)
Courtesy of Mitsubishi Motor Sales of America.
BRAKE BOOSTER PUSH ROD

Condition Code Procedure
Application incorrect ... B .. Require repair or replacement.
Cracked ................. A .. Require repair or replacement.
Distorted ............... A .. Require repair or replacement.
Missing ................. C ............ Require replacement.
Positioned incorrectly .. B .. Require repair or replacement.
Stepped ................. A .. Require repair or replacement.
Worn to the extent that it
no longer performs its
intended function ...... A .. Require repair or replacement.









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DRIVE SHAFT FLANGES
See COMPANION FLANGES .
DRIVE SHAFTS AND HALF SHAFTS
DRIVE SHAFT AND HALF SHAFT INSPECTION








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Condition Code Procedure
Balance weight missing .. C .. Require repair or replacement.
Bearing cap bore
distorted .............. A .. Require repair or replacement.
Bent .................... A ............ Require replacement.
Bolt holes elongated .... A .. Require repair or replacement.
Bushing or seal surface
worn, affecting
performance ............ A .. Require repair or replacement.
Leaking through soft yoke
plug ................... A ... Require repair or replacement
of soft yoke plug.
Out of balance .......... A .. Require repair or replacement.
Retainer strap bent ..... A .......... Require replacement of
retainer strap.
Slip yoke broken ........ A ............ Require replacement.
Splines worn, affecting
performance ............ A ............ Require replacement.
Splines worn close to
the end of their
useful life ............ 1 ............ Suggest replacement.
Threads damaged ......... A .. Require repair or replacement.
Threads stripped (threads
missing) ............... A ............ Require replacement.
U-bolt damaged, affecting
performance ............ A . Require replacement of U-bolts.
Yoke damaged, affecting
performance ............ A .. Require repair or replacement.









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DUST BOOTS
NOTE: Does not include CV boots.
DUST BOOT INSPECTION









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Condition Code Procedure
Cracked, not leaking .... 1 ............ Suggest replacement.
Missing ................. C ............ Require replacement.
Leaking ................. A .. Require repair or replacement.

performs its intended
function ............... A ............ Require replacement.
Weights missing ......... A ............ Require replacement.









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FLUID LEVEL INDICATORS
See DIP STICKS (FLUID LEVEL INDICATORS) .
FLUIDS AND LUBRICANTS
FLUID AND LUBRICANT INSPECTION








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Condition Code Procedure
Application incorrect ... B ........ ( 1) Require replacement.
At service interval ..... 3 ............ Suggest replacement.
Beyond service interval . 3 ............ Suggest replacement.
Burned .................. .. ......... ( 2) Further inspection
required.
Contaminated, for example,
fluid other than hydraulic
fluid present .......... A or B .... ( 3)( 4) Require service.
Exceeding service
interval ............... 3 ............ Suggest replacement.
Hydraulic fluid
incorrect .............. B ............ ( 5) Require service.
Level incorrect ......... B ..... Require correction of fluid
level.
Near service interval ... 3 ............ Suggest replacement.
Rubber master cylinder
cover gasket distorted
and gummy .............. A ............ ( 3) Require service.
Varnished ............... .. ......... ( 6) Further inspection
required.
( 1) - Determine and correct cause.
( 2) - Fluid that is burned indicates a serious problem.
Determine and correct the cause.
( 3) - If a fluid other than hydraulic fluid is present in the
hydraulic system which DOES affect the rubber parts, the
required service is to: 1) remove all components having
rubber parts from the system, 2) flush lines with
denatured alcohol or hydraulic cleaner, 3) repair or
replace all components having rubber parts, and 4) bleed
and flush with correct hydraulic fluid. (Code A)
( 4) - If a fluid other than hydraulic fluid is present in the
hydraulic system which DOES NOT affect the rubber parts,
the required service is to flush and fill with the
correct hydraulic fluid. (Code B)
( 5) - If a fluid other than specification hydraulic fluid is
present in the hydraulic system, the required service
is to flush and fill with the correct hydraulic fluid.
( 6) - Fluid that is varnished may indicate a serious problem.
Determine and correct the cause.









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FLYWHEELS
NOTE: Clutch disc replacement does not necessitate flywheel
reconditioning, unless other conditions justify the
reason to do so.

Condition Code Procedure
Attaching hardware
broken ................. A ... Require repair or replacement
of hardware.
Attaching hardware
missing ................ C .......... Require replacement of
hardware.
Attaching hardware not
functioning ............ A ... Require repair or replacement
of hardware.
Broken .................. A ............ Require replacement.
Leaking (hydraulic
mount) ................. A ............ Require replacement.
Mounting hole worn,
affecting performance .. A ............ Require replacement.
Mounting hole worn, not
affecting performance .. .. ........ No service suggested or
required.
Rubber deteriorated,
affecting performance .. A ............ Require replacement.
Rubber deteriorated, not
affecting performance .. .. ........ No service suggested or
required.
Threads damaged ......... A .. Require repair or replacement.
Threads stripped (threads
missing) ............... A ............ Require replacement.









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ODOMETER DRIVES (MECHANICAL)
See SPEEDOMETER/ODOMETER DRIVES (MECHANICAL) .
ODOMETER HEADS (MECHANICAL)
See SPEEDOMETER/ODOMETER HEADS (MECHANICAL) .
OIL PANS
See TRANSMISSION PANS .
PANS
See TRANSMISSION PANS .
PILOT HOLES
See DOWEL PINS, GUIDES AND PILOT HOLES .
PRESSURE PLATES
PRESSURE PLATE INSPECTION








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Condition Code Procedure
Balance weight missing .. C ............ Require replacement.
Broken .................. A ............ Require replacement.
Contact surface
distorted .............. B ............ Require replacement.
Cracks .................. B ............ Require replacement.
Fingers bent ............ A ............ Require replacement.
Hard spots .............. B ............ Require replacement.

incorrect .............. B ............ Require replacement.
Teeth broken ............ A ............ Require replacement.
Teeth damaged, affecting
performance ............ A ............ Require replacement.









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TORQUE CONVERTERS
TORQUE CONVERTER INSPECTION








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Condition Code Procedure
Converter clutch lock-up
operation is faulty .... A ............ Require replacement.
Cover shell damaged,
affecting performance .. A ............ Require replacement.
Does not meet stall speed
specification .......... B ............ Require replacement.
End play exceeds
specifications ......... B ............ Require replacement.
Hub broken .............. A ............ Require replacement.
Hub cracked ............. A ............ Require replacement.
Internal component
failure ................ A ............ Require replacement.
Leaking ................. A .. Require repair or replacement.
Pilot broken ............ A ............ Require replacement.
Pilot worn, affecting
performance ............ A ............ Require replacement.
Threads damaged ......... A .. Require repair or replacement.
Threads stripped (threads
missing) ............... A ............ Require replacement.
Weights missing ......... C ............ Require replacement.









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TRANSAXLE MOUNTS
See MOUNTS (ENGINE, TRANSAXLE AND TRANSMISSION) .
TRANSDUCERS (TRANSMISSION)
See SENSORS.
TRANSMISSION COOLERS
TRANSMISSION COOLER INSPECTION








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Condition Code Procedure
Air flow obstruction .... A ................. Require repair.
Attaching hardware
broken ................. A ... Require repair or replacement
of hardware.
Attaching hardware
missing ................ C .......... Require replacement of
hardware.
Attaching hardware not
functioning ............ A .. Require repair or replacement
of hardware.
Connection leaking ...... A .. Require repair or replacement.
Contaminated ............ A .. Require repair or replacement.
Corroded ................ 1 .. Suggest repair or replacement.
Fins damaged, affecting

interchangeable. Inspect all components for wear. Note amount of wear
in lifter body-to-camshaft contact area. Surface must have smooth and
convex contact face. If wear is apparent, carefully inspect cam lobe.
Inspect push rod contact area and lifter body for scoring
or signs of wear. If body is scored, inspect lifter bore for damage
and lack of lubrication. On roller type lifters, inspect roller for
flaking, pitting, loss of needle bearings and roughness during
rotation.
Measure lifter body O.D. in several areas. Measure lifter
bore I.D. of cylinder block. Some models offer oversized lifters.
Replace lifter if damaged.
If lifter check valve is not operating, obstructions may be
preventing it from closing or valve spring may be broken. Clean or
replace components as necessary.
Check plunger operation. Plunger should drop to bottom of the
body by its own weight when assembled dry. If plunger is not free,
soak lifter in solvent to dissolve deposits.
Lifter leak-down test can be performed on lifter. Lifter
must be filled with special test oil. New lifters contain special test
oil. Using lifter leak-down tester, perform leak-down test following
manufacturer's instructions. If leak-down time is not within
specifications, replace lifter assembly.
Lifters should be soaked in clean engine oil several hours
prior to installation. Coat lifter base, roller (if equipped) and
lifter body with ample amount of Molykote or camshaft lubricant. See
Fig. 13. Install lifter in original location. Install remaining
components. Valve lash adjustment is not required on most hydraulic
lifters. Preload of hydraulic lifter is automatic. Some models may
require adjustment.
Mechanical Lifters
Lifter assemblies must be installed in original locations.
Remove rocker arm assembly and push rod. Mark components for location.
Some applications require intake manifold or lifter cover removal.
Remove lifter retainer plate (if used). To remove lifters, use lifter
remover or magnet.
Inspect push rod contact area and lifter body for scoring or
signs of wear. If body is scored, inspect lifter bore for damage and
lack of lubrication. Note amount of wear in lifter body-to-camshaft
contact area. Surface must have smooth and convex contact face. If
wear is apparent, carefully inspect cam lobe.
Coat lifter base, roller (if equipped) and lifter body with
ample amount of Molykote or camshaft lubricant. Install lifter in
original location. Install remaining components. Tighten bolts to
specification. Adjust valves. See VALVE ADJUSTMENT in this article.
PISTONS, CONNECTING RODS & BEARINGS
* PLEASE READ THIS FIRST *
NOTE: Always refer to appropriate engine overhaul article in the
ENGINES section for complete overhaul procedures and
specifications for the vehicle being repaired.
RIDGE REMOVAL
Ridge in cylinder wall must be removed prior to piston
removal. Failure to remove ridge prior to removing pistons will cause
piston damage in piston ring locations.
With the piston at bottom dead center, place a rag in the
bore to trap metal chips. Install ridge reamer in cylinder bore.
Adjust ridge reamer using manufacturer's instructions. Remove ridge