1998 MITSUBISHI MONTERO engine coolant

tire size deactivate passenger airbag automatic transmission fluid climate settings CD changer air condition

Page 28 of 1501

$MITSUBISHI MONTERO 1998 Service Manual \ \b\ \ \ \ \ \ EAC Electric Assist Choke$

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EAC Electric Assist Choke

EACV Electric Air Control Valve

EBCM Electronic Brake Control Module

ECA Electronic Control Assembly

ECAT Electronically Controlled Automatic Transaxle

ECM Electronic Control Module

ECT Engine Coolant Temperature Sensor

ECU Electronic Control Unit or Engine Control Unit

EDF Electric Drive Fan relay assembly

EDIS Electronic Distributorless Ignition System

EEC Electronic Engine Control

EECS Evaporative Emission Control System

EEPROM Electronically Erasable PROM

EFE Early Fuel Evaporation

EFI Electronic Fuel Injection

EGO Exhaust Gas Oxygen sensor (see HEGO)

EGR Exhaust Gas Recirculation system

EGRC EGR Control solenoid or system

EGRV EGR Vent solenoid or system

EMR Emission Maintenance Reminder Module

ESA Electronic Spark Advance

ESC Electronic Spark Control

EST Electronic Spark Timing

ETR Emergency Tensioning Retractor

EVAP Fuel Evaporative System

EVIC Electronic Vehicle Information Center

EVO Electronic Variable Orifice

EVP EGR Valve Position Sensor

EVR EGR Valve Regulator

EVRV Electronic Vacuum Regulator Valve

Elect. Electronic

Eng. Engine

Evap. Evaporative

Exc. Except

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"F" ABBREVIATION TABLE
"F" ABBREVIATION TABLE\
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ABBREVIATION DEFINITION

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F Fahrenheit (Degrees)

F/B Fuse Block

FBC Feedback Carburetor

FI Fuel Injector or Fuel Injection

FICD Fast Idle Control Device

FIPL Fuel Injector Pump Lever

FP Fuel Pump

FPM Fuel Pump Monitor

FPR-VSV Fuel Pressure Regulator Vacuum Switching Valve

FWD Front Wheel Drive

Fed. Federal

Ft. Lbs. Foot Pounds

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"G" ABBREVIATION TABLE
"G" ABBREVIATION TABLE\
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ABBREVIATION DEFINITION

Page 63 of 1501

MITSUBISHI MONTERO 1998 Service Manual Threads damaged ......... A .. Require repair or replacement.
Threads stripped (threads
missing) ............... A ............ Require replacement.
Wire lead conductors
exposed ...........

Threads damaged ......... A .. Require repair or replacement.
Threads stripped (threads
missing) ............... A ............ Require replacement.
Wire lead conductors
exposed ................ B .. Require repair or replacement.
Wire lead corroded ...... A .. Require repair or replacement.
Wire lead open .......... A .. Require repair or replacement.
Wire lead shorted ....... A .. Require repair or replacement.
(1) - Refer to manufacturer's diagnostic trouble code
procedure and require repair or replacement of
affected component(s).
( 2) - Determine cause and correct prior to repair or
replacement of part.
( 3) - Determine source of contamination, such as engine coolant,
fuel, metal particles, or water. Require repair or
replacement. Check for accepted cleaning procedure.
( 4) - Inoperative includes intermittent operation or out of
OEM specification. Some components may be serviceable.
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COOLANT
COOLANT INSPECTION\
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Condition Code Procedure
Acidity (pH) incorrect .. 1 ........... Suggest correction or
replacement.
Contaminated ............ B ...... ( 1) Require replacement or
recycling. Further
inspection required.
Level incorrect ......... B .......... ( 2) Require filling to
proper level.
Maintenance intervals ... 3 ........ ( 3) Suggest replacement.
Mixture incorrect ....... B ........... Require correction or
replacement.
Type incorrect .......... B ............ Require replacement.
( 1) - Determine source of contamination and require correction
prior to coolant replacement.
( 2) - Determine source of incorrect level and suggest repair.
( 3) - The system should be drained and/or flushed and
refilled with correct coolant according to OEM
recommended service interval and procedures.
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COOLING FAN BLADES
COOLING FAN BLADE INSPECTION\
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Condition Code Procedure
Application incorrect ... B ............ Require replacement.
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.

Page 84 of 1501

MITSUBISHI MONTERO 1998 Service Manual A/C-HEATER SYSTEM
1998 Mitsubishi Montero
1998 AIR CONDITIONING & HEAT
Mitsubishi - A/C-Heater System
Montero
* PLEASE READ THIS FIRST *
WARNING: To avoid injur

A/C-HEATER SYSTEM
1998 Mitsubishi Montero
1998 AIR CONDITIONING & HEAT
Mitsubishi - A/C-Heater System
Montero
* PLEASE READ THIS FIRST *
WARNING: To avoid injury from accidental air bag deployment, read and
carefully follow all SERVICE PRECAUTIONS and DISABLING &
ACTIVATING AIR BAG SYSTEM procedures in AIR BAG RESTRAINT
SYSTEM article.
A/C SYSTEM SPECIFICATIONS
A/C SYSTEM SPECIFICATIONS TABLE\
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Application Specification
Compressor Type ............... Nippondenso 10PA15 10-Cyl.
Compressor Belt Deflection ( 1)
New .......................... 13/64-15/64" (5.1-6.0 mm)
Used ......................... 17/64-19/64" (6.6-7.5 mm)
Compressor Oil Capacity ..................... ( 2) 2.7 ozs.
Refrigerant (R-134a) Capacity ................. 21-23 ozs.
System Operating Pressures ( 4)
High Side ............... 149-213 psi (10.5-15.0 kg/cm
)
Low Side .................... 14-33 psi (1.0-2.3 kg/cm)
( 1) - With 22 lbs. (100 N.m) force applied midway on longest
span of belt.
( 2) - Use ND 8-OIL refrigerant oil.
( 3) - Use SUN PAG 56 refrigerant oil.
( 4) - With ambient temperature at about 80
F (27C).\
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DESCRIPTION
Slight variations exist among manual A/C-heater systems used.
On Montero, a Nippondenso 10-cylinder compressor is used. Cycling of
compressor clutch is controlled by an automatic A/C Control Unit
(ACCU).
Compressors will only operate within normal temperatures and
pressures set for each model. An electric condenser fan operates
whenever A/C system is operating. System components may vary depending
upon model. Systems may include an ACCU, fan switch, evaporator,
temperature sensor, dual-pressure switch, engine coolant temperature
switch, compressor, condenser, receiver-drier and various pipes and
hoses.
OPERATION
A/C CONTROL UNIT (ACCU)
ACCU controls cycling of compressor clutch based on
information received from air thermosensor and air inlet sensor, dual-
pressure switch, A/C switch and A/C engine coolant temperature switch.
ACCU is attached to top of evaporator housing.

Page 85 of 1501

MITSUBISHI MONTERO 1998 Service Manual A/C SWITCH
When turned on, the A/C system will operate if blower motor
control lever is in a position other than OFF. When activated, A/C
switch allows A/C compressor clutch to engag

A/C SWITCH
When turned on, the A/C system will operate if blower motor
control lever is in a position other than OFF. When activated, A/C
switch allows A/C compressor clutch to engage and operate the
compressor.
A/C ENGINE COOLANT TEMPERATURE SWITCH
The A/C engine coolant temperature switch, located on
thermostat housing, is wired in series with compressor clutch. When
coolant temperature is greater than switch control temperature, power
to compressor is cut and compressor is turned off until temperature
returns to operating range. Switch will turn on at 226
F (108C) and
off at 235-243F (112-118C).
AIR SELECTOR LEVER
The lever moves horizontally to select source of air used
inside passenger compartment. Lever moves from position on left
(outside air mode) to position on right (recirculated air mode). Lev\
er
should be set in recirculated air mode for maximum A/C cooling.
BLOWER MOTOR CONTROL SWITCH
Blower motor control switch rotates to select blower motor
speeds. As switch is rotated from left or OFF position, increasing
speeds of blower operation are selected. In order for A/C system to
operate, blower motor control switch must be in a position other than
OFF.
MODE SELECTOR KNOB
Mode selector knob has six modes available to achieve desired
distribution of air from various outlets. When knob is rotated fully
to left (counterclockwise), airflow is directed to upper passenger
area. In second position (clockwise), airflow is directed to upper
passenger area and slightly to leg area. Position 3, directs air
mostly to leg area and slightly to upper passenger area. Position 4,
directs air exclusively to leg area. Position 5, directs air to leg
area and to windshield and door windows. Position 6, directs air
exclusively to windshield and door windows.
TEMPERATURE CONTROL KNOB
Temperature control knob operates blend-air door in
heater/air conditioning unit, mixing cooled and heated air so that
selected air temperature can be obtained. The system will provide
cooled air when A/C switch is in ON position and blower motor is in
any position other than OFF. Temperature control knob should be on far
left (maximum cooling) side of temperature selection scale when
maximum A/C cooling is desired.
DUAL-PRESSURE SWITCH
The dual-pressure switch, mounted on receiver-drier, is wired
in series with compressor clutch. Whenever system pressures drop below
or increase above control points of switch, power supplied to
compressor will be cut and compressor function will cease until
pressures are back to normal operating ranges.

Page 88 of 1501

MITSUBISHI MONTERO 1998 Service Manual With A/C switch in indicated position, ensure continuity
exists between listed terminals. See appropriate A/C SWITCH CONTINUITY
TEST table. See Fig. 2.
A/C SWITCH CONTINUITY TEST TABLE
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Page 89 of 1501

MITSUBISHI MONTERO 1998 Service Manual Fig. 3: Testing A/C Engine Coolant Temperature Switch
Courtesy of Mitsubishi Motor Sales of America.
AIR THERMOSENSOR & AIR INLET SENSOR
1) Disconnect sensor connector at evaporator

Page 93 of 1501

MITSUBISHI MONTERO 1998 Service Manual A/C SWITCH
Removal & Installation
Lower glove box. Remove instrument cover. Remove lap cooler
and foot shower ducts. Remove center panel and A/C-heater control
panel. Remov

Page 99 of 1501

MITSUBISHI MONTERO 1998 Service Manual Removal & Installation
Discharge A/C system, using approved refrigerant
recovery/recycling equipment. Disconnect refrigerant temperature
sensor wiring connector. Remove temperature s

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