service MITSUBISHI MONTERO 1991 Service Manual
[x] Cancel search | Manufacturer: MITSUBISHI, Model Year: 1991, Model line: MONTERO, Model: MITSUBISHI MONTERO 1991Pages: 1333, PDF Size: 24.61 MB
Page 487 of 1333
![MITSUBISHI MONTERO 1991 Service Manual AIR INJECTION CONTROL SOLENOIDS
AIR INJECTION CONTROL SOLENOID INSPECTION \
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AIR INJECTION CONTROL SOLENOID INSPECTION \
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AIR INJECTION CONTROL SOLENOIDS
AIR INJECTION CONTROL SOLENOID INSPECTION \
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Condition Code Procedure
Attaching hardware
missing ................ C ......... Require replacement of
hardware.
Attaching hardware
threads damaged ........ A .. Require repair or replacement
of hardware.
Attaching hardware
threads stripped
(threads missing) ...... A .. Require repair or replacement
of hardware.
Connector broken ........ A . Require repair or replacement.
Connector (Weatherpack
type) leaking .......... A . Require repair or replacement.
Connector melted ........ A .......... ( 1) Require repair or
replacement.
Connector missing ....... C ........... Require replacement.
Inoperative ............. B .......... ( 2) Require repair or
replacement. Further
inspection required.
Leaking ................. A . Require repair or replacement.
Missing ................. C ........... Require replacement.
Resistance out of
specification .......... B . Require repair or replacement.
Restricted, affecting
performance ............ A . Require repair or replacement.
Terminal broken ......... A . Require repair or replacement.
Terminal burned, affecting
performance ............ A .......... ( 1) Require repair or
replacement.
Terminal burned, not
affecting performance .. 2 . Suggest repair or replacement.
Terminal corroded,
affecting performance .. A . Require repair or replacement.
Terminal corroded, not
affecting performance .. 2 . Suggest repair or replacement.
Terminal loose, affecting
performance ............ B . Require repair or replacement.
Terminal loose, not
affecting performance .. 1 . Suggest repair or replacement.
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) - Determine cause and correct prior to repair or
replacement of part.
( 2) - Inoperative includes intermittent operation or out of
OEM specification. Some components may be serviceable;
check for accepted cleaning procedure.
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AIR PLENUMS
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![MITSUBISHI MONTERO 1991 Service Manual AIR PLENUM INSPECTION \
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Condition Code](/img/19/57332/w960_57332-487.png "MITSUBISHI MONTERO 1991 Service Manual AIR PLENUM INSPECTION \
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Condition Code")
AIR PLENUM INSPECTION \
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Condition Code Procedure
Integrated air or fuel
control components
inoperative ............ A ........... (1) Require repair or
replacement.
Internal air or fuel
components damaged,
affecting performance .. A ... Require repair or replacement
of component.
Internal air or fuel
components damaged, not
affecting performance .. .. ........ No service suggested or
required.
Internal air or fuel
components missing ..... C .......... Require replacement of
component.
Leaking ................. A .. Require repair or replacement.
Restricted .............. A .. Require repair or replacement.
Threads damaged ......... A .. Require repair or replacement.
Threads stripped (threads
missing) ............... A .. Require repair or replacement.
( 1) - Inoperative includes intermittent operation or out of
OEM specification.
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AIR PUMP BELTS
AIR PUMP BELT INSPECTION \
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Condition Code Procedure
Alignment incorrect ..... B .......... ( 1) Further inspection
required.
Cracked ................. 1 ............ Suggest replacement.
Frayed .................. 1 ............ Suggest replacement.
Maintenance intervals ... 3 ... Suggest replacement to comply
with vehicle OEM recommended
service intervals.
Missing ................. C ............ Require replacement.
Noisy ................... 2 .......... ( 2) Further inspection
required.
Plies separated ......... A ............ Require replacement.
Tension out of
specification .......... B ........... Require adjustment or
replacement.
Worn beyond adjustment
range .................. B ............ Require replacement.
Worn so it contacts bottom
of pulley .............. A ............ Require replacement.
( 1) - Determine cause of incorrect alignment and require repair.
( 2) - Determine cause of noise and suggest repair.
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AIR PUMPS (ELECTRIC-DRIVEN)
AIR PUMP (ELECTRIC-DRIVEN) INSPECTION \
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of hardware.
Inoperative ............. A ........... (1) Require repair or
replacement.
Leaking ................. A ............ Require replacement.
Melted, affecting
performance ............ A ............ Require replacement.
Melted, not affecting
performance ............ .. ........ No service suggested or
required.
Missing ................. C ............ Require replacement.
Threads damaged ......... A .. Require repair or replacement.
Threads stripped (threads
missing) ............... A .. Require repair or replacement.
( 1) - Inoperative includes intermittent operation or out
of OEM specification.
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BAFFLES
See SHROUDS, BAFFLES AND DEFLECTORS .
BALLAST PRIMARY SUPPLY RESISTOR WIRES
See BALLAST RESISTORS AND PRIMARY SUPPLY RESISTOR WIRES .
BALLAST RESISTORS AND PRIMARY SUPPLY RESISTOR WIRES
BALLAST RESISTOR AND PRIMARY SUPPLY RESISTOR WIRE INSPECTION \
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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.
Conductor exposed ....... A ............ Require replacement.
Connector broken ........ A .. Require repair or replacement.
Connector melted ........ A ........... ( 1) Require repair or
replacement.
Connector missing ....... C ............ Require replacement.
Inoperative ............. A ........ ( 2) Require replacement.
Insulation overheated ... A ............ Require replacement.
Terminal broken ......... A .. Require repair or replacement.
Terminal burned, affecting
performance ............ A ........... ( 1) Require repair or
replacement.
Terminal burned, not
affecting performance .. 2 .. Suggest repair or replacement.
Terminal corroded,
affecting performance .. A .. Require repair or replacement.
Terminal corroded, not
affecting performance .. 2 .. Suggest repair or replacement.
Terminal loose, affecting
performance ............ B .. Require repair or replacement.
Terminal loose, not
affecting performance .. 1 .. Suggest repair or replacement.
Page 492 of 1333
replacement of part.
(2) - Determine source of contamination, such as engine coolant,
fuel, metal particles, or water. Require repair or
replacement.
( 3) - Inoperative includes intermittent operation or out of
OEM specification. Some components may be serviceable;
check for accepted cleaning procedure.
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BATTERIES
Proper operation of any electrical system or component can be
affected by battery condition. The battery(ies) must meet or exceed
minimum specification for vehicle as equipped and test to that
specific battery's CCA.
Definition of Terms
* Battery Performance Testing
Testing that determines whether or not a battery meets both
vehicle OEM and battery manufacturer's specifications.
* Cold Cranking Amp (CCA) Rating
The number of amperes a new, fully charged battery at
0
F (-17.8 C) can deliver for 30 seconds and maintain at
least a voltage of 1.2 volts per cell (7.2 volts for a
12-volt battery).
* Cranking Amps (CA)
The number of amperes a new, fully charged battery, typically
at 32
F (0 C) can deliver for 30 seconds and maintain at
least a voltage of 1.2 volts per cell (7.2 volts for a
12-volt battery).
* OEM Cranking Amps
The minimum CCA required by the original vehicle manufacturer
for a specific vehicle.
BATTERY INSPECTION
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Condition Code Procedure
Battery frozen .......... .. ......... ( 1) Further inspection
required.
Case leaking ............ A ............ Require replacement.
Casing swollen .......... A .......... ( 2) Further inspection
required.
Circuit open internally . A ............ Require replacement.
Electrolyte
contamination .......... A .......... ( 2) Further inspection
required.
Electrolyte
discoloration .......... A .......... ( 2) Further inspection
required.
Fails to accept and
hold charge ............ A ........ ( 3) Require replacement.
Fluid level low ......... B .......... ( 4) Further inspection
required.
Out of performance
specification
for battery ............ B ........ ( 5) Require replacement.
Out of specification for
application ............ B ........ ( 5) Require replacement.
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Post (top or side) burned,
affecting performance .. A ........... (6) Require repair or
replacement.
Post (top or side) burned,
not affecting
performance ............ 2 ........... ( 6) Suggest repair or
replacement.
Post (top or side)
corroded, affecting
performance ............ A ................. Require repair.
Post (top or side)
corroded, not affecting
performance ............ 2 ................. Suggest repair.
Post (top or side)
loose .................. A ............ Require replacement.
Post (top or side)
melted, affecting
performance ............ A ........... ( 6) Require repair or
replacement.
Post (top or side)
melted, not affecting
performance ............ 2 ........... ( 6) Suggest repair or
replacement.
Specific gravity low .... B .......... ( 7) Further inspection
required.
State of charge low ..... A .......... ( 7) Further inspection
required.
Top dirty ............... 2 ....... Suggest cleaning battery.
Top wet ................. A ... ( 8) Require cleaning battery.
Further inspection required.
Vent cap loose .......... A ... Require repair or replacement
of vent cap.
Vent cap missing ........ C ..... Require replacement of vent
cap.
( 1) - DO NOT attempt to charge a frozen battery. Allow
battery to warm thoroughly and then performance-test.
If battery fails performance test, require replacement.
( 2) - No service suggested or required unless the battery
fails performance test, in which case, require
replacement.
( 3) - This phrase refers to a battery that fails to either
accept and/or retain a charge using appropriate times
listed in the Battery Charging Guide of the BCI Service
Manual, battery charger operating manual, or battery
manufacturer's specifications.
( 4) - Determine cause of low fluid level. Refill to proper
level(s) with water (distilled water preferred).
Recharge battery and performance-test.
( 5) - The battery may meet battery manufacturer's
specifications but test below the minimum
specification defined by the vehicle's OEM for
that vehicle.
( 6) - Determine cause and correct prior to repair or
replacement of part.
( 7) - Recharge and test to manufacturer's specifications.
If battery fails performance test, require replacement.
( 8) - Check fluid level and adjust to manufacturer's
specification. Suggest checking charging system
for proper operation.
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BATTERY CABLES, WIRES AND CONNECTORS
Page 495 of 1333
![MITSUBISHI MONTERO 1991 Service Manual BATTERY TRAY AND HOLD DOWN HARDWARE INSPECTION \
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BATTERY TRAY AND HOLD DOWN HARDWARE INSPECTION \
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Condition Code Procedure
Battery improperly
secured ................ 2 ................. Suggest repair.
Bent, affecting
performance ............ A .. Require repair or replacement.
Bent, not affecting
performance ............ .. ....... No service suggested or
required.
Broken, affecting
performance ............ A .. Require repair or replacement.
Broken, not affecting
performance ............ .. ....... No service suggested or
required.
Corroded, affecting
performance ............ A .. Require repair or replacement.
Corroded, not affecting
performance ............ 2 .. Suggest repair or replacement.
Cracked, affecting
performance ............ A .. Require repair or replacement.
Cracked, not affecting
performance ............ 1 .. Suggest repair or replacement.
Missing ................. C ............ Require replacement.
Threads damaged ......... A .. Require repair or replacement.
Threads stripped (threads
missing) ............... A ............ Require replacement.
Water drain clogged ..... A ................. Require repair.
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BATTERY WIRES
See BATTERY CABLES, WIRES AND CONNECTORS .
BELT-DRIVEN AIR PUMPS
BELT-DRIVEN AIR PUMP INSPECTION \
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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.
Inoperative ............. A ........ ( 1) Require replacement.
Leaking ................. A ............ Require replacement.
Missing ................. C ............ Require replacement.
Noisy ................... 2 ............ Suggest replacement.
Pulley alignment
incorrect .............. B .. Require repair or replacement.
Pulley bent ............. A ............ Require replacement.
Pulley cracked .......... A ............ Require replacement.
Pulley loose ............ A .. Require repair or replacement.
Pulley missing .......... C ............ Require replacement.
Threads damaged ......... A .. Require repair or replacement.
Threads stripped (threads
Page 497 of 1333
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Condition Code](/img/19/57332/w960_57332-496.png "MITSUBISHI MONTERO 1991 Service Manual \
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Condition Code")
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Condition Code Procedure
Attaching hardware
missing ................ C .......... Require replacement of
hardware.
Attaching hardware threads
damaged ................ A ... Require repair or replacement
of hardware.
Attaching hardware
threads stripped
(threads missing) ...... A ... Require repair or replacement
of hardware.
Connector broken ........ A .. Require repair or replacement.
Connector (Weatherpack
type) leaking .......... A .. Require repair or replacement.
Connector melted ........ A ........... (1) Require repair or
replacement.
Connector missing ....... C ............ Require replacement.
Contaminated ............ A ........... ( 2) Require repair or
replacement.
Inoperative ............. B ........... ( 3) Require repair or
replacement. Further
inspection required.
Leaking ................. A .. Require repair or replacement.
Missing ................. C ............ Require replacement.
Terminal broken ......... A .. Require repair or replacement.
Terminal burned, affecting
performance ............ A ........... ( 1) Require repair or
replacement.
Terminal burned, not
affecting performance .. 2 .. Suggest repair or replacement.
Terminal corroded,
affecting performance .. A .. Require repair or replacement.
Terminal corroded, not
affecting performance .. 2 .. Suggest repair or replacement.
Terminal loose, affecting
performance ............ B .. Require repair or replacement.
Terminal loose, not
affecting performance .. 1 .. Suggest repair or 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) - Determine cause and correct prior to repair or
replacement of part.
( 2) - Determine source of contamination, such as engine
coolant, fuel, metal particles, or water. Require
repair or replacement.
( 3) - Inoperative includes intermittent operation or out of
OEM specification. Some components may be serviceable;
check for accepted cleaning procedure.
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CARBURETORS AND CHOKES
NOTE: Proper operation of a carburetor includes the ability to
control air/fuel mixtures during all phases or driving
operation to comply with all federal and local emissions
standards. Adjustments are to be considered repairs.
Page 498 of 1333
![MITSUBISHI MONTERO 1991 Service Manual CARBURETOR AND CHOKE INSPECTION \
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CARBURETOR AND CHOKE INSPECTION \
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Condition Code Procedure
Air/fuel control
incorrect .............. B .. Require repair or replacement.
Application incorrect ... B .. Require repair or 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.
Components binding ...... A .. Require repair or replacement.
Components damaged,
affecting operation or
performance ............ A .. Require repair or replacement.
Components missing ...... C .......... Require replacement of
components.
Contaminated ............ A ........... (1) Require repair or
replacement. Further
inspection required.
Controlling linkages
binding ................ A ... Require repair or replacement
of linkage.
Leaking ................. A .. Require repair or replacement.
Mechanical operation
incorrect .............. B .. Require repair or replacement.
Operating incorrectly ... B .. Require repair or replacement.
( 1) - Some components may be serviceable; check for accepted
cleaning procedure. Determine source of contamination,
such as engine coolant, fuel, metal particles, or water.
Require repair or replacement.
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CASTING CORE PLUGS AND EXPANSION PLUGS
CASTING CORE PLUG AND EXPANSION PLUG INSPECTION \
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Condition Code Procedure
Leaking ................. A ............ Require replacement.
Material type
incorrect .............. 2 ............ Suggest replacement.
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CHARGE AIR COOLERS "INTERCOOLERS" (CAC)
CHARGE AIR COOLER "INTERCOOLER" (CAC) INSPECTION \
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Condition Code Procedure
Air-to-air intercooler
leaking, affecting boost
performance ............ A .. Require repair or replacement.
Attaching hardware
broken ................. A ... Require repair or replacement
of hardware.
Attaching hardware
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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) - Determine cause and correct prior to repair or
replacement of part.
( 2) - Inoperative includes intermittent operation or out of OEM
specification. Some components may be serviceable;
check for accepted cleaning procedure.
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COLD START INJECTORS
See FUEL AND COLD START INJECTORS .
CONNECTORS
See WIRING HARNESSES AND CONNECTORS .
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 low ............... 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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COOLANT RECOVERY TANKS
COOLANT RECOVERY TANK INSPECTION \
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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.
Leaking ................. A . Require repair or replacement.
Page 503 of 1333
replacement.
Inoperative ............. B ........... (3) Require repair or
replacement. Further
inspection required.
Leaking ................. A .. Require repair or replacement.
Missing ................. C ............ Require replacement.
Resistance out of
specification .......... B .. Require repair or replacement.
Terminal broken ......... A .. Require repair or replacement.
Terminal burned, affecting
performance ............ A ........... ( 1) Require repair or
replacement.
Terminal burned, not
affecting performance .. 2 .. Suggest repair or replacement.
Terminal corroded,
affecting performance .. A .. Require repair or replacement.
Terminal corroded, not
affecting performance .. 2 .. Suggest repair or replacement.
Terminal loose, affecting
performance ............ B .. Require repair or replacement.
Terminal loose, not
affecting performance .. 1 .. Suggest repair or replacement.
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) - Determine cause and correct prior to repair or
replacement of part.
( 2) - Determine source of contamination, such as engine
coolant, fuel, metal particles, or water. Require
repair or replacement.
( 3) - Inoperative includes intermittent operation or out of
OEM specification. Some components may be serviceable;
check for accepted cleaning procedure.
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COOLING FAN MOTOR SWITCHES
See COOLING FAN MOTOR SENSORS AND SWITCHES .
COOLING FAN MOTORS
COOLING FAN MOTOR INSPECTION \
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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.
Connector broken ........ A . Require repair or replacement.
Connector (Weatherpack
type) leaking .......... A . Require repair or replacement.