1991 MITSUBISHI MONTERO engine coolant

cruise control low oil pressure battery seat memory oil additives immobilizer

Page 720 of 1333

$MITSUBISHI MONTERO 1991 Service Manual Fluid Capacities \ \ \ \ \ \$

Fluid Capacities

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Application Quantity

Engine Oil

1987 ......................................... 5.2 Qts. (5.0L)

1988 ......................................... 5.0 Qts. (4.8L)

1989-92 ...................................... 5.5 Qts. (5.3L)

1993-95 ...................................... 5.2 Qts. (4.9L)

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105,000 MILE (168,000 KM) SERVICE
105,000 MILE (168,000 KM) SERVICE\
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Service Or Inspect

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Verify Last Major Service Was Performed

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Fluid Levels

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Braking System

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Drive Shaft Boots

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Replace

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Engine Oil

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Oil Filter

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Lubrication Specifications

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Application Specification

Brake & Clutch Fluid ............................ DOT 3 Or DOT 4

Engine Coolant .............. Ethylene-Glycol Antifreeze Coolant

Engine Oil (
1)

Minimum Temperature

Greater Than 32
F (0
C) ...... SAE 20W-40 Or 20W-50 API SG/CD

Greater Than -10
F (-23
C) ..... SAE 10W-30, 10W-40 API SG/CD

Maximum Temperature

Less Than 60
F (16
C) .......... SAE 5W-30 Or 5W-40 API SG/CD

Front Axle & Conventional Rear Axle

Minimum Temperature

Greater Than -10
F (-23
C) ........... SAE 90, 85W-90, 80W-90

API GL-5

Maximum Temperature

Less Than -30
F (-34
C) .................... SAE 75W API GL-5

Power Steering Fluid ............................. Dexron-II ATF

Rear Axle (With Limited

Slip Differential) ............ Hypoid Gear Oil (8149630EX) Or

Equivalent

Transmission

Automatic ...................................... Dexron-II ATF

Manual Transaxle &

Transfer Case (4WD) ................. SAE 75W-85W, 75W-90 API

GL-4 Or GL-5

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1) - Since temperature ranges for different oil grades overlap,

brief fluctuations in outside temperatures are no cause for

concern.

Page 723 of 1333

$MITSUBISHI MONTERO 1991 Service Manual Manual Transmission Oil & Transfer Case \b\ \ \ \ \ \$

Manual Transmission Oil & Transfer Case

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Carburetor Choke Mechanism & Linkage (2.6L Engine)

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Crankcase Emission Control System (PCV Valve)

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Evaporative Emission Control System

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Distributor Cap, Rotor & Spark Advanced System

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Intake Temperature Control System

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Secondary Air System

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Front Disc Pads

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Rear Drum Brake Linings & Wheel & Cylinders

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Brake Hoses

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Steering Linkage Seals & Drive Shaft Boots

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Lubricate Ball Joints

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Lubricate Front Wheel Bearing

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Drive Axle Fluid (Without Limited-Slip Differential)

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Lubricate Drive Shaft Joints

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Exhaust System

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Drive Belt (Water Pump & Alternator)

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Vacuum, Water, Crankcase Ventilation & Secondary Air Hoses

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Replace

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Air Filter

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Fuel Filter

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Spark Plugs

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Ignition Cables

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Camshaft Timing Belt

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Engine Coolant

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Drive Axle Fluid (With Limited-Slip Differential)

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Engine Oil & Filter

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Automatic Transmission & Transfer Case Fluids

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Vacuum Control System Solenoid Valve Air Filter

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Lubrication Specifications

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Application Specification

Brake & Clutch Fluid ............................ DOT 3 Or DOT 4

Page 724 of 1333

MITSUBISHI MONTERO 1991 Service Manual Engine Coolant .............. Ethylene-Glycol Antifreeze Coolant

Engine Oil (
1)

Minimum Temperature

Engine Coolant .............. Ethylene-Glycol Antifreeze Coolant

Engine Oil (
1)

Minimum Temperature

Greater Than 32
F (0
C) ...... SAE 20W-40 Or 20W-50 API SG/CD

Greater Than -10
F (-23
C) ..... SAE 10W-30, 10W-40 API SG/CD

Maximum Temperature

Less Than 60
F (16
C) .......... SAE 5W-30 Or 5W-40 API SG/CD

Front Axle & Conventional Rear Axle

Minimum Temperature

Greater Than -10
F (-23
C) ........... SAE 90, 85W-90, 80W-90

API GL-5

Maximum Temperature

Less Than -30
F (-34
C) .................... SAE 75W API GL-5

Power Steering Fluid ............................. Dexron-II ATF

Rear Axle (With Limited

Slip Differential) ............ Hypoid Gear Oil (8149630EX) Or

Equivalent

Transmission

Automatic ...................................... Dexron-II ATF

Manual Transaxle &

Transfer Case (4WD) ................. SAE 75W-85W, 75W-90 API

GL-4 Or GL-5

(
1) - Since temperature ranges for different oil grades overlap,

brief fluctuations in outside temperatures are no cause for

concern.

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Fluid Capacities

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Application Quantity

Automatic Transmission

1987-93 ...................................... 7.6 Qts. (7.2L)

1994 (3.0L SOHC) ............................. 7.6 Qts. (7.2L) \

1994 (3.0L DOHC & 3.5L) ...................... 9.0 Qts. (8.5L) \

1995 ......................................... 7.9 Qts. (7.5L)

Cooling System

1987-88 ...................................... 8.5 Qts. (8.0L)

1989-95

2.6L ........................................ 9.7 Qts. (9.2L)

3.0L ....................................... 10.0 Qts. (9.5L)

1994-95

3.5L ....................................... 10.0 Qts. (9.5L)

Differential

1987-88 ...................................... 1.9 Qts. (1.8L)

1989-94

2.6L ........................................ 1.9 Qts. (1.8L)

3.0L ........................................ 2.7 Qts. (2.6L)

1994

3.5L ........................................ 2.7 Qts. (2.6L)

1995

3.0L ........................................ 2.7 Qts. (2.6L)

3.5L ........................................ 3.3 Qts. (3.2L)

Engine Oil

1987 ......................................... 5.2 Qts. (5.0L)

1988 ......................................... 5.0 Qts. (4.8L)

1989-92 ...................................... 5.5 Qts. (5.3L)

1993-95 ...................................... 5.2 Qts. (4.9L)

Manual Transmission

1987-91 ...................................... 2.3 Qts. (2.2L)

1992 ......................................... 2.4 Qts. (2.3L)

1993-95 ...................................... 2.6 Qts. (2.5L)

Transfer Case

Page 725 of 1333

$MITSUBISHI MONTERO 1991 Service Manual 1987-91 ...................................... 2.3 Qts. (2.2L) 1992-95 ...................................... 2.4 Qts. (2.3L) \ \$

1987-91 ...................................... 2.3 Qts. (2.2L)

1992-95 ...................................... 2.4 Qts. (2.3L)

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Service Labor Times

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Application Hours

30,000 (60,000) 50,000

Application Mile Service Mile Service

2.6L 4-Cylinder

Automatic Transmission .... 7.9 (8.9) ................. 2.6

Manual Transmission ....... 6.9 (7.9) ................. 2.6

3.0L V6

Automatic Transmission .... 6.1 (10.6) ................ 2.6

Manual Transmission ....... 5.1 (9.6) ................. 2.6

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LUBRICATION SPECIFICATIONS TABLE\
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Application Fluid Specifications
Brake & Clutch Fluid ........................... DOT 3 Or DOT 4
Engine Coolant ............. Ethylene-Glycol Antifreeze Coolant
Engine Oil (
1)
Minimum Temperature
Greater Than 32
F (0
C) ..... SAE 20W-40 Or 20W-50 API SG/CD
Greater Than -10
F (-23
C) .. SAE 10W-30 Or 10W-40 API SG/CD
Maximum Temperature
Less Than 60
F (16
C) ......... SAE 5W-30 Or 5W-40 API SG/CD
Front Axle & Conventional Rear Axle
Minimum Temperature
Greater Than -10
F (-23
C) ..... SAE 85W-90, 80W-90 API GL-5
Maximum Temperature
Less Than -30
F (-34
C) ................... SAE 75W API GL-5
Power Steering Fluid ........................... Dexron-IIE ATF
Rear Axle (With Limited
Slip Differential) ........... Hypoid Gear Oil (8149630EX) Or
Equivalent
Transmission
Automatic .................................... Dexron-IIE ATF
Manual Transaxle &
Transfer Case (4WD) ........... SAE 75W-85W, 75W-90 API GL-5
( 1) - Since temperature ranges for different oil grades overlap,
brief fluctuations in outside temperatures are no cause for
concern.
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FLUID CAPACITIES
FLUID CAPACITIES TABLE\
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Application Quantity
A/C System R-12 Refrigerant
1983-87 .......................................... 24-26 Ozs.
1988-91 ............................................. 32 Ozs.
1992-93 ............................................. 28 Ozs.
A/C System R-134a Refrigerant ( 1)
1994-95 .......................................... 21-23 Ozs.
Automatic Transmission

Page 727 of 1333

$MITSUBISHI MONTERO 1991 Service Manual \003 K - S EN SO R R AN G E C HAR TS 1991 M it s u bis h i M onte ro 1991 ENGINE PERFORMANCE Sensor Operating Range Charts Chrysler Motors: Colt, Colt 200, Colt Vis$

Page 839 of 1333

$MITSUBISHI MONTERO 1991 Service Manual \003 I - S YSTE M /C O M PO NEN T T E STS 1991 M it s u bis h i M onte ro 1991 ENGINE PERFORMANCE System & Component Testing Chrysler Motors: Ram-50 Mitsub$

\003
I - S YSTE M /C O M PO NEN T T E STS

1991 M it s u bis h i M onte ro
1991 ENGINE PERFORMANCE
System & Component Testing
Chrysler Motors: Ram-50
Mitsubishi: Montero, Pickup
INTRODUCTION
Before testing separate components or systems, perform
procedures in F - BASIC TESTING article in the ENGINE PERFORMANCE
Section. Since many computer controlled and monitored components set a
trouble code if they malfunction, also perform procedures in G - TESTS
W/CODES article in the ENGINE PERFORMANCE Section.
NOTE: Testing individual components does not isolate shorts or
opens. Perform all voltage tests with a Digital
Volt-Ohmmeter (DVOM) with a minimum 10-megohm input
impedance, unless stated otherwise in test procedure. Use
ohmmeter to isolate wiring harness shorts or opens.
COMPUTERIZED ENGINE CONTROLS
CONTROL UNIT
NOTE: To identify ECU power and ground circuits, see appropriate
L - WIRING DIAGRAMS article in the ENGINE PERFORMANCE
Section.
Ground Circuits
1) ECU is located near right kick panel. Turn ignition off.
Using an ohmmeter, check for continuity between ground and ECU
terminals No. 101 and 106. Resistance should be zero ohms. If
resistance is not zero ohms, repair open circuit between ECU connector
and ground.
2) Connect voltmeter negative lead to ground. Connect
positive lead to ECU ground terminals as in step 1). With vehicle
running, voltmeter should indicate less than one volt. If voltmeter
reading is greater than one volt, check for open, corrosion or loose
connection in ground circuit.
Power Circuits
ECU is located near right kick panel. Turn ignition on. Check
for battery voltage on ECU terminals No. 102 and 107. If battery
voltage is not present, check operation of MPI control relay. See
RELAYS under MOTORS, RELAYS & SOLENOIDS.
ENGINE SENSORS & SWITCHES
BAROMETRIC PRESSURE SENSOR
Sensor is a component part of airflow sensor assembly. See G
- TESTS W/CODES article in the ENGINE PERFORMANCE Section.
COOLANT TEMPERATURE SENSOR
1) Remove coolant temperature sensor located near thermostat
housing (2-wire connector). Place end of sensor in water with terminal\

Page 843 of 1333

MITSUBISHI MONTERO 1991 Service Manual specified range, replace MPS.
CAUTION: DO NOT apply more than 6 volts to ISC motor.
3) Operate ISC motor by connecting a 6-volt source directly
to appropriate terminals of ISC motor connecto

Page 844 of 1333

MITSUBISHI MONTERO 1991 Service Manual Fig. 4: O2 Sensor Connector Terminal ID (2 Wire)
Courtesy of Mitsubishi Motor Sales of America.
4-Wire Heated
1) Warm engine until coolant temperature is 185-205
F (85-

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