1991 MITSUBISHI MONTERO fuel
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![MITSUBISHI MONTERO 1991 Service Manual \
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Fluid Capacities](/manual-img/19/57332/w960_57332-720.png "MITSUBISHI MONTERO 1991 Service Manual \
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Fluid Capacities")
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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
1987-91 ...................................... 2.3 Qts. (2.2L)
1992-95 ...................................... 2.4 Qts. (2.3L)
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110,000 MILE (176,000 KM) SERVICE (1987-90)
110,000 MILE (176,000 KM) SERVICE (1987-90) \
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Service Or Inspect
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Verify Last Major Service Was Performed
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Fuel System (Tank, Lines & Connections)
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Carburetor Or Throttle Body Mounting
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Replace
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Fuel Filter
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Fuel, Water & Vapor Hoses
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EGR Valve
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Oxygen Sensor
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![MITSUBISHI MONTERO 1991 Service Manual Manual Transmission Oil & Transfer Case
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\](/manual-img/19/57332/w960_57332-722.png "MITSUBISHI MONTERO 1991 Service Manual Manual Transmission Oil & Transfer Case
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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 726 of 1333
1984-86 ................................. (2) 7.2 Qts. (6.8L)
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
1983-88 ..................................... 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
1983-88 ..................................... 1.9 Qts. (1.8L)
1989-93
2.6L ....................................... 1.9 Qts. (1.8L)
3.0L ....................................... 2.7 Qts. (2.6L)
1994
3.0L & 3.5L ................................ 2.7 Qts. (2.6L)
1995
3.0L ....................................... 2.7 Qts. (2.6L)
3.5L ....................................... 3.3 Qts. (3.2L)
Engine Oil
1983-86 ..................................... 6.0 Qts. (5.8L)
1987 ........................................ 5.2 Qts. (5.0L)
1988 ........................................ 5.0 Qts. (4.8L)
1989-91 ..................................... 5.5 Qts. (5.3L)
1992-95 ..................................... 5.2 Qts. (4.9L)
Power Steering ................................ 1.1 Qts. (1.0L)
Fuel Tank
1983-88 .................................... 15.9 Gals. (60L)
1989-90
2.6L 2-Door ............................... 15.9 Gals. (60L)
3.0L 2-Door ............................... 19.9 Gals. (75L)
2.6L & 3.0L 4-Door .......................... 24 Gals. (92L)
1991-95 ...................................... 24 Gals. (92L)
Manual Transmission
1983-91 ..................................... 2.3 Qts. (2.2L)
1992 ........................................ 2.4 Qts. (2.3L)
1993-95 ..................................... 2.6 Qts. (2.5L)
Transfer Case
1983-91 ..................................... 2.3 Qts. (2.2L)
1992-95 ..................................... 2.4 Qts. (2.3L)
( 1) - Use of R12 in a R134a system will result in SEVERE DAMAGE.
( 2) - 1983 model equipped with manual transmission only.
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Page 736 of 1333
![MITSUBISHI MONTERO 1991 Service Manual Power Steering (Dexron-II)
Colt, Colt Vista, Colt 200, Mirage & Summit ...... 1.9 Qts. (.9L)\
Eclipse & Galant .................................. 1.9 Qts. (.9L)\
Montero ................](/manual-img/19/57332/w960_57332-735.png "MITSUBISHI MONTERO 1991 Service Manual Power Steering (Dexron-II)
Colt, Colt Vista, Colt 200, Mirage & Summit ...... 1.9 Qts. (.9L)\
Eclipse & Galant .................................. 1.9 Qts. (.9L)\
Montero ................")
Power Steering (Dexron-II)
Colt, Colt Vista, Colt 200, Mirage & Summit ...... 1.9 Qts. (.9L)\
Eclipse & Galant .................................. 1.9 Qts. (.9L)\
Montero .......................................... 2.2 Pts. (1.0L)\
Pickup & Ram-50 ................................... 1.9 Qts. (.9L)\
Stealth & 3000GT
2-Wheel Steering ................................ 1.9 Pts. (.9L)\
4-Wheel Steering ............................... 2.5 Pts. (1.2L)\
Transfer Case (SAE 75W-85/API GL-4)
Colt Vista ........................................ 1.5 Pts. (.7L)\
Eclipse & Galant .................................. 1.3 Pts. (.6L)\
Montero, Pickup & Ram-50 ......................... 4.7 Pts. (2.2L)\
Stealth ............................................. .3 Pt. (.2L)\
3000GT .............................................. .6 Pt. (.3L)\
(1) - Add 1.0 Pt. (.5L) with oil cooler.
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QUICK-SERVICE
SERVICE INTERVALS & SPECIFICATIONS
REPLACEMENT INTERVALS \
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Component Miles
Colt, Colt 200, Mirage & Summit
Air Filter ....................... 30,000
Automatic Transaxle Fluid ........ 30,000
Belts ............................ 30,000
Coolant .......................... 30,000
Fuel & Vapor Hoses ............... 50,000
Oil ................................ 7500
Oil Filter ....................... 15,000
Spark Plugs ...................... 30,000
Timing Belt ...................... 60,000
Colt Vista
Air Filter ....................... 30,000
Automatic Transaxle Fluid ........ 30,000
Belts ............................ 30,000
Coolant .......................... 30,000
EGR Valve ( 1) .................... 50,000
Fuel & Vapor Hoses ............... 50,000
Oil ................................ 7500
Oil Filter ....................... 15,000
O2 Sensor ( 1) .................... 80,000
Rear Axle Fluid .................. 30,000
Spark Plugs ...................... 30,000
Spark Plug Wires ( 1) ............. 60,000
Timing Belt ...................... 60,000
Vapor Canister ( 1) .............. 100,000
Mirage
Air Filter ....................... 30,000
Automatic Transaxle Fluid ........ 30,000
Belts ............................ 30,000
Coolant .......................... 30,000
Fuel & Vapor Hoses ............... 50,000
Oil ................................ 7500
Filter ........................... 15,000
Spark Plugs ...................... 30,000
Timing Belt ...................... 60,000
Eclipse
Page 737 of 1333
Air Filter ....................... 30,000
Automatic Transaxle Fluid ........ 30,000
Belts ............................ 30,000
Coolant .......................... 30,000
Fuel & Vapor Hoses ............... 50,000
Oil
Non-Turbo ........................ 7500
Turbo ............................ 5000
Oil Filter
Non-Turbo ...................... 15,000
Turbo .......................... 10,000
Spark Plugs ...................... 30,000
Timing Belt ...................... 60,000
Galant
Air Filter ....................... 30,000
Automatic Transaxle Fluid ........ 30,000
Belts ............................ 30,000
Coolant .......................... 30,000
Fuel & Vapor Hoses ............... 50,000
Oil
Non-Turbo ........................ 7500
Turbo ............................ 5000
Oil Filter
Non-Turbo ...................... 15,000
Turbo .......................... 10,000
Rear Axle Fluid .................. 30,000
Spark Plugs ...................... 30,000
Timing & Balance Shaft Belts ..... 60,000
Montero
Air Filter ....................... 30,000
Automatic Transmission Fluid ..... 30,000
Belts ............................ 30,000
Coolant .......................... 30,000
Front & Rear Axle Fluid .......... 30,000
Fuel Filter ...................... 50,000
Fuel & Vapor Hoses ............... 50,000
Oil ................................ 7500
Oil Filter ....................... 15,000
O2 Sensor (2) .................... 80,000
Spark Plugs ...................... 30,000
Spark Plug Wires ( 2) ............. 60,000
Timing Belt ...................... 60,000
Transfer Case Fluid .............. 30,000
Vapor Canister ( 2) .............. 100,000
Pickup & Ram-50
Air Filter ....................... 30,000
Automatic Transmission Fluid ..... 30,000
Belts ............................ 30,000
Coolant .......................... 30,000
EGR Valve (2.4L) ( 2) ............. 50,000
Front & Rear Axle Fluid .......... 30,000
Fuel Filter ...................... 50,000
Fuel & Vapor Hoses ............... 50,000
Oil ................................ 7500
Oil Filter ....................... 15,000
O2 Sensor ( 2) .................... 80,000
Spark Plugs ...................... 30,000
Spark Plug Wires ( 2) ............. 60,000
Timing Belt ...................... 60,000
Transfer Case Fluid .............. 30,000
Vapor Canister ( 2) .............. 100,000
Stealth
Air Filter ....................... 30,000
Page 738 of 1333
Automatic Transaxle Fluid ........ 30,000
Belts ............................ 30,000
Coolant .......................... 30,000
Front & Rear Axle Fluid .......... 30,000
Fuel & Vapor Hoses ............... 50,000
Oil
Non-Turbo ........................ 7500
Turbo ............................ 5000
Oil Filter
Non-Turbo ...................... 15,000
Turbo .......................... 10,000
Spark Plugs ...................... 60,000
Timing Belt ...................... 60,000
3000GT
Air Filter ....................... 30,000
Belts ............................ 30,000
Coolant .......................... 30,000
Fuel & Vapor Hoses ............... 50,000
Front & Rear Axle Fluid .......... 30,000
Oil
Non-Turbo ........................ 7500
Turbo ............................ 5000
Oil Filter
Non-Turbo ...................... 15,000
Turbo .......................... 10,000
Spark Plugs ...................... 60,000
Timing Belt ...................... 60,000
(1) - Federal 4WD models only.
( 2) - Federal models only.
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BELT ADJUSTMENT \
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Deflection
Application ( 1) In. (mm)
Colt, Colt 200, Mirage & Summit
1.5L ...................................... .28-.35 (7.1-8.9)
1.6L ..................................... .35-.45 (8.9-11.4)
Colt Vista
2.0L ..................................... .28-.40 (7.1-10.2)
Eclipse
1.8L ..................................... .32-.43 (8.1-11.1)
2.0L ..................................... .35-.45 (8.9-11.4)
Galant
Alternator Belt .......................... .35-.45 (8.9-11.4)
A/C Belt .......................................... .32 (8.1)
Power Steering Belt ....................... .24-.35 (6.1-8.9)
Montero
3.0L ...................................... .20-.24 (5.1-6.1)
Pickup & Ram-50
2.4L ...................................... .27-.39 (6.8-9.9)
3.0L ...................................... .32-.39 (8.1-9.9)
Stealth & 3000GT
SOHC
Alternator & Power Steering Belt ........ .24-.35 (6.1-8.9)
A/C Belt ................................ .28-.37 (7.1-9.5)
DOHC
Alternator Belt (With or Without A/C) ... .16-.22 (4.1-5.6)
Power Steering Belt .................... .35-.43 (8.9-11.1)
( 1) - With 22 lbs. (10 kg) pressure applied midway on belt run.
Page 745 of 1333
![MITSUBISHI MONTERO 1991 Service Manual \
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Application ( 1) Ba](/manual-img/19/57332/w960_57332-744.png "MITSUBISHI MONTERO 1991 Service Manual \
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Application ( 1) Ba")
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Application ( 1) Basic ( 2) ( 3) Actual
1.5L
Colt & Colt 200 ................ 5 @ 650-850 ...... 10 @ 650-850
Mirage & Summit ................ 5 @ 650-850 ...... 10 @ 650-850
1.6L
Mirage ......................... 5 @ 650-850 ....... 8 @ 650-850
1.8L
Eclipse ........................ 5 @ 600-800 ...... 10 @ 600-800
2.0L
Colt Vista & Galant (VIN V) .... 5 @ 600-800 ...... 10 @ 600-800\
Eclipse ........................ 5 @ 650-850 ....... 8 @ 650-850
Galant
(VIN R) ...................... 5 @ 650-850 ....... 8 @ 650-850\
(VIN U) ...................... 5 @ 650-850 ...... 12 @ 650-850\
2.4L
Pickup & Ram-50 ................ 5 @ 650-850 ....... 8 @ 650-850
3.0L
Montero, Pickup & Ram-50 ....... 5 @ 600-800 ...... 15 @ 600-800
Stealth & 3000GT ............... 5 @ 600-800 ...... 15 @ 600-800
( 1) - With ignition timing adjustment connector grounded or vacuum
hose (farthest from distributor) disconnected.
( 2) - With ignition timing adjustment connector ungrounded or vacuum
hose (farthest from distributor) connected. Ignition timing may
fluctuate.
( 3) - If vehicle altitude is more than 2300 ft. above sea level,
actual timing may be advanced.
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FUEL SYSTEM
FUEL PUMP
REGULATED FUEL PRESSURE \
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At Idle w/Vacuum At Idle w/o Vacuum
Application psi (kg/cm) psi (kg/cm)
Eclipse 2.0L (VIN U)
With Man. Trans. ................. 33 (2.3) .... 36-38 (2.5-2.7\
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With Auto. Trans. ................ 33 (2.3) .... 41-46 (2.9-3.2\
)
Galant 2.0L (VIN V), Montero (3.0L),
Pickup (3.0L) & Ram-50 (3.0L) ..... 38 (2.7) .... 47-50 (3.3\
-3.5)
Stealth & 3000GT (VIN B & S) ....... 38 (2.7) .... 47-50 (3.3-3\
.5)
Stealth & 3000GT (VIN C) ........... 34 (2.8) .... 43-45 (3.0-3\
.2)
All Others ......................... 38 (2.7) .... 47-50 (3.3-3.5\
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INJECTOR RESISTANCE
INJECTOR RESISTANCE \
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Application Ohms
Non-Turbo ........................... 13-16
Turbo ................................. 2-3
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THROTTLE POSITION SENSOR (TPS)
Page 850 of 1333
step. If there is continuity, replace relay.
3) Check diode operation between terminals No. 6 and 8. If
there is continuity in only one direction, go to next step. If there
is no continuity in either direction or if there is continuity in both
directions, replace relay.
4) Measure resistance between terminals No. 6 and 7. If
resistance is approximately 35 ohms, go to next step. If resistance is
not approximately 35 ohms, replace relay.
5) Measure resistance between terminals No. 2 and 5 and
between terminals No. 3 and 5. In both tests, if resistance is
approximately 95 ohms, go to next step. If resistance is not
approximately 95 ohms, replace relay.
6) Connect positive lead of 12-volt source to terminal No. 7
and negative lead to terminal No. 6. If there is continuity between
terminals No. 1 and 4, go to next step. If there is no continuity,
replace relay.
7) Connect positive lead of 12-volt source to terminal No. 5
and negative lead to terminal No. 2. If there is continuity between
terminals No. 1 and 4, go to next step. If there is no continuity,
replace relay.
8) Connect positive lead of 12-volt source to terminal No. 5
and negative lead to terminal No. 3. If there is continuity between
terminals No. 1 and 4, go to next step. If there is no continuity,
replace relay.
9) Connect positive lead of 12-volt source to terminal No. 8
and negative lead to terminal No. 6. If there is continuity between
terminals No. 3 and 4 and between terminals No. 2 and 4, relay is
okay. If there is no continuity, replace relay.
SOLENOIDS
Fuel Pressure Control Solenoid Valve
See FUEL DELIVERY under FUEL SYSTEM.
Fuel Injector Solenoids
See FUEL CONTROL under FUEL SYSTEM.
FUEL SYSTEM
FUEL DELIVERY
NOTE: For fuel system pressure testing, see F - BASIC TESTING
article in the ENGINE PERFORMANCE Section.
FUEL CONTROL
Fuel Injectors
1) Using a stethoscope, check operating sound of injector(s)\
during engine cranking or idling. If clicking sound is heard,
injectors are okay. If clicking sound is not heard at each injector,
go to step 2).
2) Disconnect injector electrical connector. Measure
resistance between injector connector terminals. At 68
F (20C), if
resistance is not 13-16 ohms, replace injector.
3) If resistance is within specification, check injector
wiring circuit for open or short to ground. If wiring circuit tests
okay, replace injector.
IDLE CONTROL SYSTEM
NOTE: ISC motor adjusts throttle plate angle to regulate idle air