1998 MITSUBISHI MONTERO mileage

(2) - Use Texaco MTX FM fluid.








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QUICK-SERVICE
SERVICE INTERVALS & SPECIFICATIONS
REPLACEMENT INTERVALS TABLE (DIAMANTE)








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Component Miles
Air Filter ........................................ 30,000
Automatic Transaxle Fluid ............................ ( 1)
Coolant ........................................... 30,000
Oil ................................................. 7500
Oil Filter .................................... ( 2) 15,000
Spark Plugs ....................................... 60,000
Spark Plug Wires .................................. 60,000
Timing Belt ....................................... 60,000
( 1) - Inspect fluid every 15,000 miles. Replace fluid if
evidence of contamination appears, after repairing
reason for contamination.
( 2) - Replace oil filter at oil change if annual mileage is
less than 7500 miles.









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REPLACEMENT INTERVALS TABLE (ECLIPSE)








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Component Miles
Air Filter ........................................ 30,000
Automatic Transaxle Fluid ............................ ( 1)
Coolant ........................................... 30,000
Oil
Non-Turbo ......................................... 7500
Turbo ............................................. 5000
Oil Filter
Non-Turbo ................................... ( 2) 15,000
Turbo ....................................... ( 2) 10,000
Spark Plugs ....................................... 30,000
Spark Plug Wires .................................. 60,000
Transfer Case Fluid .................................. ( 3)
Timing Belt ....................................... 60,000
( 1) - Inspect fluid every 15,000 miles. Replace fluid if
evidence of contamination appears, after repairing
reason for contamination.
( 2) - Replace oil filter at oil change if annual mileage is
less than 7500 miles.
( 3) - Inspect fluid every 30,000 miles. Replace fluid if
evidence of contamination appears, after repairing
reason for contamination.









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REPLACEMENT INTERVALS TABLE (GALANT)








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Component Miles
Air Filter ........................................ 30,000
Automatic Transaxle Fluid ............................ ( 1)
Coolant .............................................. ( 2)

Oil ................................................. 7500
Oil Filter .................................... (3) 15,000
Spark Plugs ....................................... 30,000
Spark Plug Wires .................................. 60,000
Timing & Balance Shaft Belts ...................... 60,000
( 1) - Inspect fluid every 15,000 miles. Replace fluid if
evidence of contamination appears, after repairing
reason for contamination.
( 2) - Inspect fluid every 30,000 miles. Replace fluid if
evidence of contamination appears, after repairing
reason for contamination.
( 3) - Replace oil filter at oil change if annual mileage is
less than 7500 miles.









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REPLACEMENT INTERVALS TABLE (MIRAGE)








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Component Miles
Air Filter ........................................ 30,000
Automatic Transaxle Fluid ............................ ( 1)
Coolant .............................................. ( 2)
Oil ................................................. 7500
Oil Filter .................................... ( 3) 15,000
Spark Plugs ....................................... 30,000
Spark Plug Wires .................................. 60,000
Timing Belt ....................................... 60,000
( 1) - Inspect fluid every 15,000 miles. Replace fluid if
evidence of contamination appears, after repairing
reason for contamination.
( 2) - Inspect fluid every 30,000 miles. Replace fluid if
evidence of contamination appears, after repairing
reason for contamination.
( 3) - Replace oil filter at oil change if annual mileage is
less than 7500 miles.









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REPLACEMENT INTERVALS TABLE (MONTERO)








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Component Miles
Air Filter ........................................ 30,000
Automatic Transmission Fluid ......................... ( 1)
Coolant ........................................... 30,000
Front & Rear Axle Fluid ( 2) ....................... 30,000
Oil ................................................. 7500
Oil Filter .................................... ( 3) 15,000
Manual Transmission .................................. ( 4)
Spark Plugs ( 5) ................................... 60,000
Spark Plug Wires .................................. 60,000
Timing Belt ....................................... 60,000
( 1) - Inspect fluid every 15,000 miles. Replace fluid if
evidence of contamination appears, after repairing
reason for contamination.
( 2) - Limited-slip differential.
( 3) - Replace oil filter at oil change if annual mileage is
less than 7500 miles.
( 4) - Inspect fluid every 30,000 miles. Replace fluid if
evidence of contamination appears, after repairing
reason for contamination.

(5) - Use Platinum spark plugs only.








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REPLACEMENT INTERVALS TABLE (MONTERO SPORT)








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Component Miles
Air Filter ........................................ 30,000
Automatic Transmission
Except 4WD ......................................... ( 1)
4WD ............................................. 30,000
Axle Fluid ( 2) .................................... 30,000
Coolant ........................................... 30,000
Oil ................................................. 7500
Oil Filter .................................... ( 3) 15,000
Spark Plugs ( 4) ................................... 60,000
Spark Plug Wires .................................. 60,000
Timing Belt ....................................... 60,000
( 1) - Inspect fluid every 15,000 miles. Replace fluid if
evidence of contamination appears, after repairing
reason for contamination.
( 2) - Limited-slip differential.
( 3) - Replace oil filter at oil change if annual mileage is
less than 7500 miles.
( 4) - Use Platinum spark plugs only.









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REPLACEMENT INTERVALS TABLE (3000GT)








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Component Miles
Air Filter ........................................ 30,000
Automatic Transaxle Fluid ............................ ( 1)
Coolant ........................................... 30,000
Oil
Non-Turbo ......................................... 7500
Turbo ............................................. 5000
Oil Filter
Non-Turbo ....................................... 15,000
Turbo ........................................... 10,000
Spark Plugs
Except Platinum ................................. 30,000
Platinum ........................................ 60,000
Spark Plug Wires ( 2) .............................. 60,000
Timing Belt ....................................... 60,000
( 1) - Inspect fluid every 15,000 miles. Replace fluid if
evidence of contamination appears, after repairing
reason for contamination.
( 2) - Except vehicles equipped with Federal Emissions.









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BELT ADJUSTMENT TABLE








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( 1) Deflection ( 1) Deflection
Application New Belt - In. (mm) Used Belt - In. (mm\
)
Diamante
Generator & A/C .... .24-.28 (6.0-7.2) ....... .32-.37 (8.2-9.3\
)
P/S ................ .33-.37 (8.4-9.3) ..... .46-.52 (11.7-13.4\
)
Eclipse
2.0L Non-Turbo

COMPUTER RELEARN PROCEDURES
1998 Mitsubishi Montero
GENERAL INFORMATION
Computer Relearn Procedures
All Models
* PLEASE READ THIS FIRST *
The following general procedures are to be used if
driveability problems are encountered after power loss or battery has
been disconnected. These procedures may provide an aid in eliminating
these problems.
To reduce the possibility of complaints, after any service
which requires battery power to be disconnected, vehicle should be
road tested.
COMPUTER RELEARN PROCEDURES
Vehicles equipped with engine or transmission computers may
require a relearn procedure after vehicle battery is disconnected.
Many vehicle computers memorize and store vehicle operation patterns
for optimum driveability and performance. When vehicle battery is
disconnected, this memory is lost. The computer will use default data
until new data from each key start is stored. As computer memorizes
vehicle operation for each new key start, driveability is restored.
Vehicle computers may memorize vehicles operation patterns for 40 of
more key starts.
Customers often complain of driveability problems during
relearn stage because vehicle acts differently then before being
serviced. Depending on type and make of vehicle and how it is
equipped, the following complaints (driveability problems) may exist:
* Harsh Or Poor Shift Quality
* Rough Or Unstable Idle
* Hesitation Or Stumble
* Rich Or Lean Running
* Poor Fuel Mileage
These symptoms and complaints should disappear after a number
of drive cycles have been memorized. To reduce the possibility of
complaints, after any service which requires battery power to be
disconnected, vehicle should be road tested. If a specific relearn
procedure is not available, the following procedure may be used:
Automatic Transmission
* Set parking brake, start engine in "P" or "N" position.
Warm-up vehicle to normal operating temperature or until
cooling fan cycles.
* Allow vehicle to idle for one minute in "N" position. Select
"D" and allow engine to idle for one minute.
* Accelerate at normal throttle position (20-50%) until vehicle
shifts into top gear.
* Cruise at light to medium throttle.
* Decelerate to a stop, allowing vehicle to downshift, and use
brakes normally.
* Process may be repeated as necessary.
Manual Transmission

If equipped, the EMR light (some models may use a reminder
flag) reminds vehicle operator that an emission system maintenance is
required. This indicator is activated after a predetermined
time/mileage.
When performing a smog check inspection, ensure EMR indicator
is not activated. On models using an EMR light, light should glow when
ignition switch is turned to ON position and should turn off when
engine is running.
If an EMR flag is present or an EMR light stays on with
engine running, fail vehicle and service or replace applicable
emission-related components. To reset an EMR indicator, refer to
appropriate MAINTENANCE REMINDER LIGHTS in the MAINTENANCE section.
MALFUNCTION INDICATOR LIGHT (MIL)
The Malfunction Indicator Light (MIL) is used to alert
vehicle operator that the computerized engine control system has
detected a malfunction (when it stays on all the time with engine
running). On some models, the MIL may also be used to display trouble
codes.
As a bulb and system check, malfunction indicator light will
glow when ignition switch is turned to ON position and engine is not
running. When engine is started, light should go out.

H - TESTS W/O CODES
1998 Mitsubishi Montero
1998 ENGINE PERFORMANCE
Mitsubishi - Trouble Shooting - No Codes
Diamante, Eclipse, Galant, Mirage, Montero, Montero Sport,
3000GT
INTRODUCTION
Before using this article to diagnose symptoms or
intermittent faults, perform testing in F - BASIC TESTING article and
G - TESTS W/CODES article. Use this article to diagnose driveability
problems existing when a hard Diagnostic Trouble Code (DTC) is not
present.
NOTE: Some driveability problems may have been corrected by
manufacturer with a revised Powertrain Control Module (PCM).
Check with manufacturer for latest PCM.
Symptom checks can direct technician to malfunctioning
component(s) for further diagnosis. A symptom should lead to a
specific component, system test or adjustment.
Use intermittent test procedures to locate driveability
problems that DO NOT occur when vehicle is being tested. These test
procedures should also be used if an intermittent DTC was present, but
no problem was found during self-diagnostic testing.
NOTE: For specific testing procedures, see G - TESTS W/CODES
article. For specifications, see D - ADJUSTMENTS or
C - SPECIFICATIONS article.
SYMPTOMS
SYMPTOM DIAGNOSIS
Symptom checks cannot be used unless problem occurs while
vehicle is being tested. Before using this article to diagnose any
symptom, perform basic diagnostic procedures in F - BASIC TESTING
article and self-diagnostics in G - TESTS W/CODES article in order to
reduce diagnostic time. The following symptoms are available for
diagnosis:
* Difficult To Start/No Start (Cranks Okay)
* Rough Or Unstable Idle
* Engine Hesitates Or Poor Acceleration
* Engine Surges
* Detonation Or Knocking
* Poor Fuel Mileage
DIFFICULT TO START/NO START (CRANKS OKAY)
* Check idle air control (DC) motor (if applicable).
* Check idle air control (stepper) motor (if applicable).
* Check ignition switch.
* Check camshaft position sensor.
* Check crankshaft position sensor.
* Check park/neutral position switch (A/T).
* Check volume airflow sensor.
* Check engine coolant temperature sensor.

* Check idle air control (DC) motor (if applicable).
* Check idle air control (stepper) motor (if applicable).
* Check for fuel injector malfunction.
* Check for power transistor malfunction (if applicable).
* Check A/C switch and power relay (if applicable).
* Check for PCM malfunction.
* Ensure electrical harness, connectors and wires are not
broken, bent or loose.
ENGINE SURGES
* Check engine coolant temperature sensor.
* Check EGR control solenoid valve (if applicable).
* Check fuel pressure.
* Check for fuel injector malfunction.
DETONATION OR KNOCKING
* Check for knock sensor malfunction (if applicable).
* Check volume airflow sensor.
* Check for engine cooling system problems.
* Check fuel quality.
* Check intake air temperature sensor.
* Check barometric pressure sensor (if applicable).
* Check manifold absolute pressure sensor (if applicable).
* Check ignition coil.
* Check power transistor (if applicable).
* Check for EGR system malfunction.
POOR FUEL MILEAGE
* Check intake air temperature sensor.
* Check engine coolant temperature sensor.
* Check barometric pressure sensor (if applicable).
* Check manifold absolute pressure sensor (if applicable).
* Check ignition switch.
* Check throttle position sensor.
* Check camshaft position sensor.
* Check crankshaft position sensor.
* Check power steering oil pressure switch (if applicable).
* Check A/C switch and power relay (if applicable).
* Check park/neutral position switch (A/T).
* Check heated oxygen sensor.
* Check volume airflow sensor.
* Check fuel pressure.
* Check for SFI system malfunction.
* Check idle air control (DC) motor (if applicable).
* Check idle air control (stepper) motor (if applicable).
* Check for fuel injector malfunction.
* Check for power transistor malfunction (if applicable).
INTERMITTENTS
INTERMITTENT PROBLEM DIAGNOSIS
Intermittent fault testing requires duplicating circuit or
component failure to identify problem. These procedures may lead to
computer setting a Diagnostic Trouble Code (DTC) which may help in
diagnosis.
If problem vehicle does not produce DTCs, monitor voltage or
resistance values using a DVOM while attempting to reproduce
conditions causing intermittent fault. A status change on DVOM

8 - Engine Type
M * 3.5L V6
9 - VIN Check Digit
* 1 Through 9 Or X
10 - Vehicle Model Year
V * 1997
W * 1998
11 - Assembly Plant
J * Nagoya, Japan
12-17 - Serial Number
* Sequential Production Number
MAINTENANCE SERVICE INFORMATION
SEVERE & NORMAL SERVICE DEFINITIONS
Service is recommended at mileage intervals based on vehicle
operation. Service schedules are based on the following primary
operating conditions.
Normal Service
* Driven More Than 10 Miles Daily
* No Operating Conditions From Severe Service Schedule
Severe Service (Unique Driving Conditions)
NOTE: Use the Severe Service schedule if the vehicle to be serviced
is operated under ANY (one or more) of these conditions:
* Driving In Dusty Conditions
* Towing A Trailer, Police, Taxi, Or Commercial Type Operation
* Extensive Idling, Driving In Stop And Go Traffic
* Short-Trip Operation At Freezing Temperatures
(Engine Not Thoroughly Warmed Up)
* Driving In Sandy Areas
* Driving In Salty Areas
* More Than 50% Operation In Heavy City Traffic Or At Sustained
High Speeds During Hot Weather Above 90
\bF (32\bC)
* Driving On Off-Road
CAMSHAFT TIMING BELT
Replace the camshaft timing belt every 60,000 miles. It is
recommended that the timing belt be inspected every 30,000 miles after
replacement.
CAUTION: Failure to replace a faulty camshaft timing belt may result
in serious engine damage.
The condition of camshaft drive belts should always be
checked on vehicles which have more than 50,000 miles. Although some
manufacturers do not recommend belt replacement at a specified
mileage, others require it at 60,000-100,000 miles. A camshaft drive
belt failure may cause extensive damage to internal engine components
on most engines, although some designs do not allow piston-to-valve
contact. These designs are often called "Free Wheeling".
Many manufacturers changed their maintenance and warranty