1998 MITSUBISHI MONTERO coolant temperature
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INSTRUMENT PANEL
1998 Mitsubishi Montero
1998 ACCESSORIES & EQUIPMENT
Mitsubishi - Instrument Panels
Eclipse, Galant, Mirage, Montero, Montero Sport, 3000GT
DESCRIPTION & OPERATION
WARNING: Deactivate air bag system before performing any service
operation. See AIR BAG RESTRAINT SYSTEMS article. Do not
apply electrical power to any component on steering column
without first deactivating air bag system. Air bag may
deploy.
Instrument cluster includes speedometer, fuel gauge and
temperature gauge. Fuel gauge has a built-in voltage limiter to keep
voltage supply to gauges at 7 volts. Some models may also have an
ammeter, oil pressure gauge, tachometer, voltmeter and/or turbo boost
pressure gauge. Oil pressure gauge uses full battery voltage.
Tachometer operates by pulse feed.
COMPONENT LOCATIONS
COMPONENT LOCATIONS TABLE \
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Component Location
Engine Coolant Temperature (ECT) Sensor
Eclipse, Galant, Montero
& Montero Sport ................. On Thermostat Housing
Mirage ........................ On Rear Of Cylinder Head
3000GT ........... On Cylinder Head, Below Ignition Coil
Input Speed Sensor
Eclipse ........................... On Side Of Transaxle
Output Speed Sensor
Eclipse ........................... On Side Of Transaxle
Vehicle Speed Sensor
Eclipse, Galant,
Mirage & 3000GT ................... On Top Of Transaxle
Montero & Montero Sport ...... On Transmission Tailshaft
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TROUBLE SHOOTING
FUEL/TEMPERATURE GAUGE NOT WORKING
Check for blown fuse, faulty voltage limiter and faulty
relay. Ensure sending unit connections are clean and tight. Test
sending unit for correct operation. Tighten connections in instrument
cluster.
SPEEDOMETER NOT WORKING
On mechanical-type speedometers, ensure speedometer cable is
properly connected and correctly routed. If speedometer pointer and/or
odometer still do not work, replace speedometer cable or speedometer
assembly.
On electric-type speedometers, check for faulty vehicle speed
sensor, input/output sensors or faulty circuit. For testing, see
Page 840 of 1501
speedometer.
TEMPERATURE GAUGE
CAUTION: DO NOT connect sender wire directly to ground during test.
Circuit Test
1) Disconnect temperature sender wire from sending unit.
Connect a 12-volt, 3.4-watt test light between connector terminal and
ground. Turn ignition switch to ON position.
2) If test light flashes and temperature gauge needle moves,
go to SENSOR RESISTANCE TEST. If test light does not flash or gauge
needle does not move, repair wiring to sending unit.
Sensor Resistance Test
1) Remove Engine Coolant Temperature (ECT) sensor from
engine. See COMPONENT LOCATIONS . Place sending unit in 158
F (70C)
water. Check sensor resistance using ohmmeter.
2) ECT sensor resistance should be 90-117 ohms. If ECT sensor
resistance is okay, go to GAUGE RESISTANCE TEST. Replace ECT sensor if
resistance is not as specified.
Gauge Resistance Test
1) Remove instrument cluster. See INSTRUMENT CLUSTER under
REMOVAL & INSTALLATION. On 3000GT, remove air distribution duct and
combination gauges.
2) On all models, check resistance between temperature gauge
terminals at rear of cluster or combination gauges. See
TEMPERATURE GAUGE RESISTANCE SPECIFICATIONS table. See Fig. 21, 22,
23, 24, 25, 26, 27 or 28.
TEMPERATURE GAUGE RESISTANCE SPECIFICATIONS TABLE
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Application ( 1) Terminals Ohms
Eclipse ............... "A" & "B" .............. 161-197
Eclipse ............... "A" & "C" ................ 51-57
Eclipse ............... "B" & "C" .............. 210-256
Galant ................ "B" & "C" .................. ( 2)
Mirage ................ "A" & "B" ................ 86-95
Mirage ................ "A" & "C" .............. 168-206
Mirage ................ "B" & "C" .............. 222-272
Montero ............... No. 4 & 8 .............. 103-128
Montero ............... No. 4 & 9 .............. 221-271
Montero ............... No. 8 & 9 .............. 130-160
Montero Sport ......... "A" & "B" ................... 88
Montero Sport ......... "A" & "C" .................. 103
Montero Sport ......... "B" & "C" .................. 191
3000GT ................ "A" & "B" ................... 51
3000GT ................ "A" & "C" .................. 139
3000GT ................ "B" & "C" .................. 190
( 1) - See Fig. 21, 22, 23, 24, 25, 26, 27 or 28.
( 2) - With positive battery voltage applied to terminal "A",
battery ground applied to terminal "C" and a 50-ohm
resistor connected between battery ground and terminal
"B", needle should be about 1/4 position on gauge.
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Page 895 of 1501
K - SENSOR RANGE CHARTS
1998 Mitsubishi Montero
1998 ENGINE PERFORMANCE
Mitsubishi - Sensor Operating Range Charts
Diamante, Eclipse, Galant, Mirage, Montero, Montero Sport,
3000GT
INTRODUCTION
Sensor operating range information can help determine if a
sensor is out of calibration. An out-of-calibration sensor may not set
a diagnostic trouble code, but it may cause driveability problems. For
sensors not listed in this article, see G - TESTS W/CODES article.
NOTE: Unless stated otherwise in test procedure, perform all
voltage tests using a Digital Volt-Ohmmeter (DVOM) with a
minimum 10-megohm input impedance. For connector terminal
identification, see TERMINAL IDENTIFICATION in
G - TESTS W/CODES article.
ENGINE COOLANT TEMPERATURE (ECT) SENSOR RESISTANCE TABLE ( 1)
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Application & Temperature F (C) Ohms
Diamante, & Eclipse Turbo & 2.4L
32 (0) ....................................... 5100-6500
68 (20) ...................................... 2100-2700
104 (40) ...................................... 900-1300
176 (80) ....................................... 260-360
Eclipse 2.0L Non-Turbo
77 (25) .................................... 9000-11,000
212 (100) ...................................... 600-800
Galant, Mirage & Montero Sport
68 (20) ...................................... 2100-2700
176 (80) ....................................... 260-360
Montero & 3000GT
32 (0) ............................................ 5800
68 (20) ........................................... 2400
104 (40) .......................................... 1100
176 (80) ........................................... 300
( 1) - Check resistance across ECT sensor terminals.
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INTAKE AIR TEMPERATURE (IAT) SENSOR RESISTANCE TABLE \
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Application & Temperature F (C) Ohms
Diamante, & Eclipse Turbo & 2.4L ( 1)
32 (0) ....................................... 5300-6700
68 (20) ...................................... 2300-3000
104 (40) ..................................... 1000-1500
176 (80) ....................................... 300-420
Eclipse 2.0L Non-Turbo ( 2)
77 (25) .................................... 9000-11,000
212 (100) ...................................... 600-800
Galant, Mirage 1.8L & Montero Sport ( 1)
68 (20) ...................................... 2300-3000
176 (80) ....................................... 300-420
Mirage 1.5L ( 2)
68 (20) ...................................... 2300-3000
Page 964 of 1501
![MITSUBISHI MONTERO 1998 Service Manual
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Engine Oil Ambient Temperature Less Than](/manual-img/19/57333/w960_57333-963.png "MITSUBISHI MONTERO 1998 Service Manual
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Engine Oil Ambient Temperature Less Than")
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Engine Oil Ambient Temperature Less Than SAE 5W-30
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1) 0\bF (-18\bC) To 100\bF (38\bC)
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Ambient Temperature Above 0\bF SAE 10W-30
(-18\bC) To Over 100\bF (38\bC)
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Power All Automatic Transmission
Steering Fluid DEXRON II
Fluid
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Engine All 50/50 Mixture Of
Coolant Distilled Water &
Ethylene Glycol
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Transfer Case All API Classification GL-4
SAE 75W-85W Or 75W-90
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Front Axle All API Classification GL-5
Or Higher (
2)
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Clutch Fluid All DOT 3 Or DOT 4
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Hook Lock All Multipurpose Grease
Catch, Door NLGI Grade 2
Lock Strikers
Seat Adjust-
ers, Backdoor
Lock, Parking
Brake Cable
Mechanism
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Front Wheel All Multipurpose Grease
Bearings NLGI Grade 2 Or
Equivalent
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Door Hinges, All Engine Oil
Back Door
Hinges
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A/C All HFC-134a
Refrigerant
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Manual All API Classification GL-4
Transmission SAE 75W-85W Or 75W-90
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Automatic All "ATF DEXRON II" Or
Transmission Equivalent
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Brake Fluid All DOT 3 Or DOT 4
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Rear Axle All API Classification GL-5
Or Higher (
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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\b F (-18\b C).
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2) - SAE90, 85W-90, 80W-90 may be used in temperatures above
-10\b F (-23\b C). SAE 80W, 80W-90 may be used in temperatures
from -30\b F (-34\b C) to -10\b F (-23\b C). SAE 75W may be used
in temperatures below -30\b F (-34\b C).
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Page 998 of 1501
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 (48 C). 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.
Page 999 of 1501
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)
Page 1050 of 1501
(3) - Or inspect every 2 years.
(
4) - Or inspect every year.
(
5) - Or change every 2 years.
(
6) - Or lubricate grease every 2 years.
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LUBRICATION SPECIFICATIONS
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Material Condition Specification
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Engine Oil Ambient Temperature Less Than SAE 5W-30
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1) 0 F (-18 C) To 100 F (38 C)
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Ambient Temperature Above 0 F SAE 10W-30
(-18 C) To Over 100 F (38 C)
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Engine All 50/50 Mixture Of
Coolant Distilled Water &
Ethylene Glycol
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Manual All API Classification GL-4
Transmission SAE 75W-85W Or 75W-90
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Automatic All "ATF DEXRON II" Or
Transmission Equivalent
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Brake Fluid All DOT 3 Or DOT 4
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Rear Axle All API Classification GL-5
Or Higher (
2)
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Transfer Case All API Classification GL-4
SAE 75W-85W Or 75W-90
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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).
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2) - SAE90, 85W-90, 80W-90 may be used in temperatures above
-10 F (-23 C). SAE 80W, 80W-90 may be used in temperatures
from -30 F (-34 C) to -10 F (-23 C). SAE 75W may be used
in temperatures below -30 F (-34 C).
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FLUID CAPACITIES
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Item Condition Specification (1)
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Engine Oil Oil Pan 4.5 Qts. (4.3L)
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Oil Filter 0.32 Qts. (0.3L)
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Oil Cooler 0.32 Qts. (0.3L)
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Engine Drained; With Reserve Tank 10 Qts. (9.5L)
Coolant
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Automatic Drained 8.9 Qts. (8.5L)
Transmission
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Manual Drained 3.3 Qts. (3.2L)
Transmission
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Rear Axle Drained 3.3 Qts. (3.2L)
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Transfer Case Drained 2.6 Qts. (2.5L)
Page 1054 of 1501
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Drive Shaft Boots (
4)")
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Drive Shaft Boots (
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Exhaust System (
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Distributor Cap & Rotor (
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REPLACE
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Engine Oil (
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Engine Oil Filter (
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Engine Coolant
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Automatic Transmission Fluid
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Rear Axle Oil
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Spark Plugs
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Timing Belt (
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Ignition Cables (
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Air Cleaner Filter
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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 2 years.
(
4) - Or inspect every year.
(
5) - Or change every 2 years.
(
6) - Or lubricate grease every 2 years.
(
7) - Or inspect every 5 years.
(
8) - Or replace every 5 years.
(
9) - For California & Massachusettes, this maintenance is
recommended but not required.
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LUBRICATION SPECIFICATIONS
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Material Condition Specification
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Engine Oil Ambient Temperature Less Than SAE 5W-30
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1) 0 F (-18 C) To 100 F (38 C)
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Ambient Temperature Above 0 F SAE 10W-30
(-18 C) To Over 100 F (38 C)
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Engine All 50/50 Mixture Of
Coolant Distilled Water &
Ethylene Glycol
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Manual All API Classification GL-4
Transmission SAE 75W-85W Or 75W-90
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Automatic All "ATF DEXRON II" Or
Transmission Equivalent
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Brake Fluid All DOT 3 Or DOT 4
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Rear Axle All API Classification GL-5
Or Higher (
2)