1998 MITSUBISHI MONTERO engine oil

1) Relieve fuel pressure. See FUEL SYSTEM PRESSURE RELEASE.
Disconnect negative battery cable. Drain coolant. Remove air intake
hose. Remove throttle body and gasket with control cables and vacuum
hoses attached.
2) Remove EGR pipe (if equipped). Disconnect power brake
hose. Label and disconnect vacuum hoses and wiring harness connectors
as necessary. Remove intake plenum brackets and mounting bolts. Remove
intake plenum and gasket.
3) Disconnect high pressure fuel hose at fuel rail.
Disconnect fuel return hose. Disconnect vacuum hoses. Disconnect
injector electrical connectors. Remove fuel rail bolts, and lift fuel
rail and injectors from engine. Injectors may be removed after fuel
rail is removed from intake manifold.
Installation
To install, reverse removal procedure. Use NEW insulators and
"O" rings when installing injectors. Install injectors into fuel rail
with a twisting motion. Ensure injectors rotate smoothly when
installing. Refill cooling system.
Removal (Eclipse, Galant, Mirage & Montero Sport 3.0L)
1) Relieve fuel pressure. See FUEL SYSTEM PRESSURE RELEASE.
Disconnect negative battery cable. Disconnect PCV hose and breather
hoses. Disconnect high pressure fuel hose at fuel rail. Disconnect
fuel return hose and vacuum hoses.
2) Disconnect injector electrical connectors. Remove fuel
rail bolts, and lift fuel rail and injectors from engine. Injectors
may be removed after fuel rail is removed from intake manifold.
Installation
To install, reverse removal procedure. Use NEW insulators and
"O" rings when installing injectors. Use lubricant on "O" rings.
Install injectors into fuel rail with a twisting motion. Ensure
injectors rotate smoothly when installing.
Removal (Montero)
1) Relieve fuel pressure. See FUEL SYSTEM PRESSURE RELEASE.
Disconnect negative battery cable. Remove air intake hose. Remove
accelerator cable adjusting bolts. On A/T models, remove throttle
control cable. On all models, remove accelerator cable. Label and
disconnect all vacuum hoses from throttle body and upper intake
manifold (air intake plenum).
2) Remove EGR pipe and gasket. Remove ignition coil (if
necessary). Remove engine oil filler neck bracket. Disconnect PCV
hose. Remove throttle body, leaving coolant hoses connected. Remove
throttle body gasket. Remove front and rear intake plenum brackets.
Remove intake plenum mounting bolts. Remove intake plenum and gasket.
3) Disconnect high pressure fuel hose at fuel rail.
Disconnect fuel return hose. Disconnect vacuum hoses. Disconnect
injector electrical connectors. Remove fuel rail bolts, and lift fuel
rail and injectors from engine. Injectors may be removed after fuel
rail is removed from intake manifold.
Installation
To install, reverse removal procedure. Use NEW insulators and
"O" rings when installing injectors. Use lubricant on "O" rings.
Install injectors into fuel rail using a twisting motion. Ensure
injectors rotate smoothly when installing. Adjust throttle control and
accelerator cables (if necessary). Refill cooling system.
HEATED OXYGEN SENSOR (HO2S)
Removal & Installation

1) Front HO2S is mounted in exhaust pipe below exhaust
header. Rear HO2S is mounted behind catalytic converter. HO2S is
equipped with a permanent pigtail which must be protected from damage
when HO2S is removed. Ensure HO2S is free of contaminants. Avoid using
cleaning solvents of any type.
2) HO2S may be difficult to remove when engine temperature is
less than 120
F (48C). If using original sensor, always use anti-
seize compound on threads before installation. New sensor threads are
precoated with anti-seize. Tighten HO2S to specification. See
TORQUE SPECIFICATIONS .
THROTTLE BODY
Removal
1) Relieve fuel pressure. See FUEL SYSTEM PRESSURE RELEASE.
Drain enough coolant to ensure coolant level is below throttle body.
Disconnect air intake hose.
2) Remove accelerator, cruise control and A/T throttle valve
cables (if equipped). Disconnect fuel vapor hose, electrical harness
connector, vacuum hose and coolant hoses. Remove throttle body
retaining bolts.
Disassembly
Remove throttle position sensor. Remove idle air control
motor. Remove throttle bracket and connector bracket (if equipped).
Remove idle position switch and adjusting nut (if equipped).
CAUTION: DO NOT remove throttle valve. DO NOT use cleaning solvents
on throttle position sensor, idle air control motor or idle
position switch.
Cleaning
1) Clean all parts except throttle position sensor, idle air
control motor and idle position switch in solvent.
WARNING: Safety glasses MUST be worn whenever compressed air is used
for parts cleaning.
2) Check vacuum port and passage for clogging. Clean vacuum,
vapor and fuel passages using compressed air.
Reassembly
To reassemble, reverse disassembly procedure.
Installation
To install, reverse removal procedure.
THROTTLE POSITION (TP) SENSOR
Removal & Installation
Throttle Position (TP) sensor is located on throttle body.
Disconnect TP sensor electrical connector. Remove TP sensor screws and
TP sensor. To install, reverse removal procedure. Tighten TP sensor
screws to specification. See TORQUE SPECIFICATIONS. For TP sensor
adjustment procedure, see D - ADJUSTMENTS article.
TURBOCHARGERS
Removal (Eclipse)
1) Disconnect negative battery cable. Drain engine coolant
and oil. On models equipped with A/C, remove condenser fan motor
assembly. Remove front heated oxygen sensor. Remove oil dipstick guide
and "O" ring.

2) Disconnect air intake hose and vacuum hoses. Remove air
hose and air outlet housing. Remove heat protectors. Disconnect
exhaust pipe. Remove power steering oil pump and bracket. Remove
engine hanger bracket. Disconnect oil inlet pipe.
3) Disconnect engine coolant hoses and tubes from
turbocharger. Remove exhaust manifold nuts and bolts. Remove exhaust
manifold and gaskets. Disconnect oil pressure and return pipes. Remove
turbocharger and exhaust manifold assembly. Separate turbocharger from
exhaust manifold.
Removal (3000GT - Front)
1) Disconnect negative battery cable. Drain engine oil and
coolant. Remove radiator. Disconnect exhaust pipe. Remove air intake
hose, air hoses and air pipe. Remove generator and belt. Remove oil
dipstick guide.
2) Remove heat protector. Disconnect front heated oxygen
sensor connector. Remove oil return pipe. Remove turbocharger support
bracket, and remove turbocharger from exhaust manifold.
Removal (3000GT - Rear)
1) Disconnect battery cables, and remove battery. Drain
engine oil and cooling system. Remove accelerator cable. Remove air
hose, air pipe and heat protectors. Disconnect clutch booster vacuum
hose. Remove air intake hoses and EGR pipe. Disconnect heated oxygen
sensor connectors.
2) Remove oil pipe and EGR valve. Disconnect exhaust fitting,
and remove rear heat protector. Remove oil return pipe. Remove
turbocharger assembly.
Inspection (All Models)
Check turbine and compressor wheels for cracking and other
damage. Ensure turbine and compressor wheels turn smoothly. Check for
oil leakage from turbocharger assembly. Check for proper wastegate
valve operation. See I - SYSTEM/COMPONENT TESTS article.
CAUTION: Apply light coat of oil to inner surface of flared area on
water pipe (flare nut fitting) before connecting to engine.
Installation (All Models)
1) To install, reverse removal procedure. Before oil pipe
flare nut (above turbocharger) is installed, pour clean engine oil
into turbocharger oil pipe installation hole. Ensure oil and air hoses
are properly installed and securely clamped.
2) Use NEW gaskets. Adjust accelerator cable (if necessary).\
Refill engine oil and coolant. Check for oil and coolant leaks.
Tighten all bolts to specification. See TORQUE SPECIFICATIONS.
TORQUE SPECIFICATIONS
TORQUE SPECIFICATIONS TABLE








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Applications Ft. Lbs. (N.m)
Coolant Pipe-To-Turbocharger Banjo Bolt .......... 31 (42)
EGR Valve ........................................ 16 (22)
Engine Coolant Temperature Sensor ................ 22 (30)
Exhaust Manifold-To-Engine Nuts ............ 18-21 (24-29)
Exhaust Manifold-To-Turbocharger Bolts ..... 40-47 (54-64)
Exhaust Pipe Bolts ......................... 21-36 (29-49)
Fuel Filter Line ................................. 27 (36)
Fuel Tank Drain Plug ....................... 11-18 (15-24)
Fuel Tank Nuts ............................. 15-21 (20-29)

Heated Oxygen Sensor
Front .................................... 29-33 (39-44)
Rear ..................................... 15-29 (20-39)
Heat Protector Bolts .................. 8.8-11 (12.0-15.0)
Intake Manifold Plenum Bolt/Nut .................. 13 (18)
Knock Sensor ............................... 15-18 (20-24)
Oil Return Pipe-To-Engine .................. 10-14 (14-19)
Oil Supply Pipe-To-Engine Nut .................... 14 (19)
Oil Supply Pipe-To-Turbocharger Nut .............. 14 (19)
Plenum-To-Intake Manifold Bolts ............ 11-15 (15-20)
Throttle Body .................................... 14 (19)
Turbocharger-To-Exhaust Manifold Bolt/Nut
Step 1 ......................................... 21 (29)
Step 2 ........................ Additional 60-70 Degrees
Water Pipe-To-Turbocharger
Eclipse .................................. 25-36 (34-49)
3000GT ......................................... 22 (30)
INCH Lbs. (N.m)
Camshaft Position Sensor .......................... 80 (9)
Crankshaft Position Sensor ........................ 80 (9)
Distributor Hold-Down Bolt ...................... 106 (12)
Engine Cover ............................. 22-40 (2.5-4.5)
Fuel Pressure Regulator ........................... 80 (9)
Fuel Pump Nuts .................................. 22 (2.5)
Fuel Rail Bolts ....................... 80-106 (9.0-12.0)
TP Sensor Screws ......................... 13-22 (1.5-2.5)
Wastegate Actuator Bolts ............... 80-106 (9.0-12.0)









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SCHEDULED SERVICES
1998 Mitsubishi Montero
1997-98 MAINTENANCE
Mitsubishi Maintenance & Service Intervals
Mitsubishi: Montero
* READ THIS FIRST *
Before preforming maintenance on vehicle, ensure that all
cautions and warnings have been observed to prevent vehicle damage or
personal injury. See CAUTIONS & WARNINGS in MAINTENANCE INFORMATION
article in this section.
Introduction
The frequency of scheduled inspection and maintenance
services in this article are based on "normal" vehicle usage. They DO
NOT take into account the following "severe" conditions:
* Driving In Dusty Conditions
* Trailer Towing, Police, Taxi, 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
F (32C)
* Driving On Off-Road
If any of these severe conditions exist, the "normal" service
schedule frequency for some service items is inadequate and must be
supplemented. See the following section for specific details,
SEVERE SERVICE CONDITIONS/ACTIONS .
SEVERE SERVICE CONDITIONS/ACTIONS
The following table identifies eight "severe" conditions that
cause faster-than-normal wear. Each condition lists affected service
item(s) and their revised (more frequent) service interval.
If any severe condition(s) is applicable, its revised service\
interval(s) supersede those found in the "normal" schedules. Depending\
on the specific mileage/time, the revised interval(s) may overlap a
normal schedule (in which case they can be done together). If not, it
must be performed outside of the normal schedule.
SEVERE SERVICE CONDITIONS/ACTIONS TABLE

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Condition  Action  Item  Perform Every (1) 
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Driving In Dusty  Replace  Engine Oil  3,000 Mile (4800 KM) 

Conditions    Or 3 Months 

\b
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 Replace  Oil Filter  6,000 Mile (9600 KM) 

   Or 6 Months 

\b
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 Replace  Air Cleaner  15,000 Mile (24,000 KM) 

  Filter  

\b
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 Inspect  Disk Brake  6,000 Mile (9,600 KM) 

  Pads  Or 6 Months 

\b\
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Trailer Towing Or  Replace  Engine Oil  3,000 Mile (4800 KM) 

Police, Taxi Or    Or 3 Months 

Commercial Type \b
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Operation  Replace  Oil Filter  6,000 Mile (9600 KM) 

   Or 6 Months 

\b
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 Replace  Spark Plugs  15,000 Mile (24,000 KM) 

\b
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 Replace  Manual  30,000 Mile (48,000 KM) 

 Transmission  

  Oil  

\b
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 Replace Transfer Oil  30,000 Mile (48,000 KM) 
\b
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Extensive Idling  Replace  Engine Oil  3,000 Mile (4800 KM) 

Driving in Stop &    Or 3 Months 

Stop & Go Traffic    

\b
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 Replace  Oil Filter  6,000 Mile (9600 KM) 

   Or 6 Months 
\b
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Short-trip  Replace  Engine Oil  3,000 Mile (4800 KM) 

Operation at    Or 3 Months 

Freezing \b
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Temperatures  Replace  Oil Filter  6,000 Mile (9600 KM) 

(Engine not    Or 6 Months 

thoroughly warmed)\b
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 Replace  Spark Plugs  15,000 Mile (24,000 KM) 
\b
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Driving In  Replace  Air Cleaner  15,000 Mile (24,000 KM) 

Sandy Areas   Filter  
\b
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Driving In  Inspect  Disc Brake  6,000 Mile (9,600 KM) 

Salty Areas   Pads  Or 6 Months 
\b
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More than 50 %  Replace  Engine Oil  3,000 Mile (4800 KM) 

Operation in Heavy   Or 3 Months 

City Traffic Or \b
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At Sustained High  Replace  Oil Filter  6,000 Mile (9600 KM) 

Speeds During Hot    Or 6 Months 

Weather Above \b
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90 F (32 C)  Replace  Manual  30,000 Mile (48,000 KM) 

 Transmission  

  Oil  

\b
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 Replace Transfer Oil  30,000 Mile (48,000 KM) 
\b
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Driving On  Replace  Manual  30,000 Mile (48,000 KM) 

Off-Road  Transmission  

  Oil  

\b
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 Replace Transfer Oil  30,000 Mile (48,000 KM) 
\b
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(
1) - Perform these services at the mileage or number of months 

(since the last time), WHICHEVER COMES FIRST. 
\f
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7,500 MILE (12,000 KM) NORMAL SERVICE
7,500 MILE (12,000 KM) NORMAL SERVICE

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REPLACE 
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 Engine Oil (
1) 
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 Engine Oil Filter (
2) 
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(
1) - Change once a year or every 7500 miles (12,000 KM). 

(
2) - If mileage is less than 7,500 miles (12,000 KM) each year, 

replace the oil filter at every oil change. 
\b
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LUBRICATION SPECIFICATIONS 
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Material  Condition  Specification 
\b
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Engine Oil  Ambient Temperature Less Than SAE 5W-30 

(
1)  0F (-18C) To 100F (38C)  

\b
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Ambient Temperature Above 0F  SAE 10W-30 

 (-18C) To Over 100F (38C)  
\b
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(
1) - SAE 5W-30 engine oil is preferred. SAE 10W-30 may be used if 

the Ambient Temperature is above 0 F (-18 C). 
\b
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FLUID CAPACITIES 
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Item  Condition  Specification (1) 
\b
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Engine Oil  Oil Pan  4.5 Qts. (4.3L) 

(
1) \b \
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 Oil Filter  0.32 Qts. (0.3L) 

\b
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 Oil Cooler  0.32 Qts. (0.3L) 
\b
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(
1) - Capacities are recommended or calculated levels. Always use 

dipstick to measure level. 
\f
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15,000 MILE (24,000 KM) NORMAL SERVICE
15,000 MILE (24,000 KM) NORMAL SERVICE
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INSPECT 
\b
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 Disc Brake Pads (
3) 
\b
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 Brake Hoses (
3) 
\b
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 Drive Shaft Boots (
3) 
\b
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REPLACE 
\b
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 Engine Oil (
1) 
\b
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 Engine Oil Filter (
2) 
\b
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(
1) - Change once a year or every 7,500 miles (12,000 KM). 

(
2) - If mileage is less than 7,500 miles (12,000 KM) each year, 

replace the oil filter at every oil change. 

(
3) - Or inspect every year. 
\b
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LUBRICATION SPECIFICATIONS 

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Material  Condition  Specification 
\b
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Engine Oil  Ambient Temperature Less Than SAE 5W-30 

(
1)  0F (-18C) To 100F (38C)  

\b
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Ambient Temperature Above 0F  SAE 10W-30 

 (-18C) To Over 100F (38C)  
\b
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Brake Fluid  All  DOT 3 Or DOT 4 
\b
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(
1) - SAE 5W-30 engine oil is preferred. SAE 10W-30 may be used if 

the Ambient Temperature is above 0 F (-18 C). 
\b
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FLUID CAPACITIES 
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Item  Condition  Specification (1) 
\b
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Engine Oil  Oil Pan  4.5 Qts. (4.3L) 

(
1) \b \
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 Oil Filter  0.32 Qts. (0.3L) 

\b
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 Oil Cooler  0.32 Qts. (0.3L) 
\b
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(
1) - Capacities are recommended or calculated levels. Always use 

dipstick to measure level. 
\f
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22,500 MILE (36,000 KM) NORMAL SERVICE
22,500 MILE (36,000 KM) NORMAL SERVICE
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VERIFY 
\b
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Last Major Service Was Performed 
\b
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REPLACE 
\b
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 Engine Oil (
1) 
\b
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 Engine Oil Filter (
2) 
\b
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(
1) - Change once a year or every 7,500 miles (12,000 KM). 

(
2) - If mileage is less than 7,500 miles (12,000 KM) each year, 

replace the oil filter at every oil change. 
\b
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LUBRICATION SPECIFICATIONS 
\b
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Material  Condition  Specification 
\b
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Engine Oil  Ambient Temperature Less Than SAE 5W-30 

(
1)  0F (-18C) To 100F (38C)  

\b
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 \
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Ambient Temperature Above 0F  SAE 10W-30 

 (-18C) To Over 100F (38C)  
\b
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(
1) - SAE 5W-30 engine oil is preferred. SAE 10W-30 may be used if 

the Ambient Temperature is above 0 F (-18 C). 
\b
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FLUID CAPACITIES 
\b
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Item  Condition  Specification (1)