1998 MITSUBISHI MONTERO 3.0 L SOHC
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A - INTRODUCTION
1998 Mitsubishi Montero
1998 ENGINE PERFORMANCE
Mitsubishi - Introduction
Diamante, Eclipse, Eclipse Spyder, Galant, Mirage, Montero,
Montero Sport, 3000GT
1997-98 MODEL COVERAGE
ENGINE/VIN IDENTIFICATION
ENGINE/VIN IDENTIFICATION TABLE \
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BODY ENGINE FUEL IGNITION
MODEL CODE (1) ENGINE (2) ID (3)SYSTEM SYSTEM (5)
\b\
\b\
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\b\b\
\b\
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Diamante 7 3.5L V6 (6G74) SOHC P SFI Hall Effect
(
4) ( 6)
\b\
\b\
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\b\b\
\b\
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Eclipse 4 2.0L 4-Cyl. (420A) Y SFI DIS (
7)
DOHC (
4)
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\b\
\b\b\
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2.0L 4-Cyl. (4G63) F SFI DIS (
7)
DOHC Turbo (
4)
\b\
\b\
\
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\b\b\
\b\
\
Eclipse 5 2.0L 4-Cyl. (4G63) F SFI DIS (
7)
Spyder DOHC Turbo (
4)
\
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\b\
\b\b\
\
2.4L 4-Cyl. (4G64) G SFI DIS (
7)
SOHC (
4)
\b\
\b\
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\b\b\
\b\
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Galant 6 2.4L 4-Cyl. (4G64) G SFI Hall Effect
SOHC (
4) ( 6)
\b\
\b\
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\b\b\
\b\
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Mirage 1, 6 1.5L 4-Cyl. (4G15) A SFI Hall Effect
SOHC (
4) ( 6)
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\b\
\b\b\
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1.8L 4-Cyl. (4G93) C SFI DIS (
7)
SOHC (
4)
\b\
\b\
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\b\b\
\b\
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Montero 1 3.5L V6 (6G74) SOHC M SFI DIS (
7)
(
4)
\b\
\b\
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\b\b\
\b\
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Montero 1 2.4L 4-Cyl. (4G64) G SFI Hall Effect
Sport SOHC (
4) ( 6)
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\b\
\b\b\
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3.0L V6 (6G72) SOHC P SFI DIS (
7)
(
4)
\b\
\b\
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\b\b\
\b\
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3000GT 4, 5 3.0L V6 (6G72) SOHC H SFI Hall Effect
(
4) ( 6)
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\b\
\b\b\
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3.0L V6 (6G72) DOHC J SFI DIS (
7)
(
4)
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\b\
\b\b\
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3.0L V6 (6G72) DOHC K SFI DIS (
7)
Turbo (
4)
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(
1) - Body code is seventh character of Vehicle Identification
Number (VIN). VIN is located on upper left corner of
Page 251 of 1501
![MITSUBISHI MONTERO 1998 Service Manual Generator ........ .30-.41 (7.5-10.5) ..... .35-.47 (9.0-12.0\
)
P/S (W/O A/C) .... .26-.37 (6.5-9.5) ..... .43-.55 (11.0-14\
.0)
P/S & A/C ........ .32-.35 (8.0-9.0) ..... .39](/manual-img/19/57333/w960_57333-250.png "MITSUBISHI MONTERO 1998 Service Manual Generator ........ .30-.41 (7.5-10.5) ..... .35-.47 (9.0-12.0\
)
P/S (W/O A/C) .... .26-.37 (6.5-9.5) ..... .43-.55 (11.0-14\
.0)
P/S & A/C ........ .32-.35 (8.0-9.0) ..... .39")
Generator ........ .30-.41 (7.5-10.5) ..... .35-.47 (9.0-12.0\
)
P/S (W/O A/C) .... .26-.37 (6.5-9.5) ..... .43-.55 (11.0-14\
.0)
P/S & A/C ........ .32-.35 (8.0-9.0) ..... .39-.43 (10.0-11.0\
)
2.0L Turbo & 2.4L
A/C .............. .22-.24 (5.5-6.0) ....... .26-.30 (6.5-7.5\
)
Generator ........ .30-.35 (7.5-9.0) .............. .39 (10.0\
)
P/S .............. .18-.22 (4.5-5.5) ....... .24-.28 (6.0-7.0\
)
Galant
A/C ................ .22-.24 (5.5-6.0) ....... .26-.30 (6.5-7.6\
)
Generator .......... .30-.35 (7.5-8.8) .............. .39 (10.0\
)
P/S ................ .18-.22 (4.5-5.6) ....... .24-.28 (6.0-7.0\
)
Mirage
1.5L
A/C .............. .13-.17 (3.4-4.3) ....... .20-.22 (5.0-5.7\
)
Generator ........ .26-.33 (6.6-8.3) ...... .36-.42 (9.2-10.6\
)
P/S .............. .28-.36 (7.2-9.0) ..... .40-.46 (10.2-11.6\
)
1.8L
Generator ........ .28-.31 (7.0-8.0) ...... .33-.39 (8.5-10.0\
)
P/S & A/C ........ .28-.36 (7.0-9.0) ..... .39-.43 (10.0-11.0\
)
Montero
A/C ................ .20-.24 (5.0-6.0) ....... .26-.30 (6.5-7.5\
)
Generator .......... .16-.20 (4.0-5.0) ....... .22-.26 (5.5-6.5\
)
P/S ................ .42-.54 (10.7-13.7) ... .58-.66 (14.8-16.8\
)
Montero Sport
2.4L
A/C .............. .20-.22 (5.0-6.0) ....... .24-.26 (6.0-6.5\
)
Generator ........ .22-.29 (5.5-7.5) ....... .30-.33 (7.5-8.5\
)
P/S .............. .16-.24 (4.0-6.0) ....... .24-.28 (6.0-7.0\
)
3.0L
A/C .............. .17-.20 (4.3-5.1) ....... .22-.26 (5.6-6.5\
)
Generator ........ .22-.29 (5.5-7.5) ....... .31-.35 (8.0-9.0\
)
P/S .............. .44-.52 (11.0-13.0) ... .56-.64 (14.0-16.0\
)
3000GT
SOHC
A/C .............. .26-.28 (6.5-7.0) ....... .30-.34 (7.5-8.5\
)
Generator & P/S .. .16-.20 (4.0-5.0) ....... .24-.32 (6.0-8.0\
)
DOHC
Generator ........ .14-.16 (3.5-4.0) ....... .16-.20 (4.0-5.0\
)
P/S .............. .30-.35 (7.5-9.0) ..... .41-.49 (10.4-12.4\
)
(1) - With 22 lbs. (10 kg) pressure applied midway between pulleys.
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MECHANICAL CHECKS
ENGINE COMPRESSION
Check engine compression with engine at normal operating
temperature, all spark plugs removed and throttle wide open.
COMPRESSION SPECIFICATIONS TABLE
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Application (1) Specification
Compression Ratio
1.5L (VIN A) ..................................... 9.0:1
1.8L (VIN C) ..................................... 9.5:1
2.0L
(VIN F) ........................................ 8.5:1
(VIN Y) ........................................ 9.6:1
2.4L (VIN G) ..................................... 9.5:1
3.0L
Page 275 of 1501
![MITSUBISHI MONTERO 1998 Service Manual COOLING SYSTEM SPECIFICATIONS \
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Application](/manual-img/19/57333/w960_57333-274.png "MITSUBISHI MONTERO 1998 Service Manual COOLING SYSTEM SPECIFICATIONS \
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Application")
COOLING SYSTEM SPECIFICATIONS \
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Application Specification
Coolant Replacement Interval ............. 30,000 Miles Or 24 Months
Coolant Capacity (Includes Heater & Reserve Tank)
Diamante ........................................ 10.0 Qts. (9.5L)\
Eclipse .......................................... 7.4 Qts. (7.0L)\
Galant ........................................... 7.4 Qts. (7.0L)\
Mirage
1.5L ........................................... 5.3 Qts. (5.0L)\
1.8L ........................................... 6.3 Qts. (6.0L)\
Montero ......................................... 10.0 Qts. (9.5L)\
Montero Sport
2.4L
With Rear Heater ............................. 9.5 Qts. (9.0L)\
Without Rear Heater .......................... 8.5 Qts. (8.0L)\
3.0L
With Rear Heater ........................... 10.6 Qts. (10.0L)\
Without Rear Heater .......................... 9.5 Qts. (9.0L)\
3000GT ........................................... 8.5 Qts. (8.0L)\
Pressure Cap
Except Eclipse 2.0L Non-Turbo .......................... 11-15 psi
Eclipse 2.0L Non-Turbo ................................. 14-18 psi
Thermostat Opens
Diamante
1997
Starts To Open .................................. 180
F (82C)
Fully Open ...................................... 203F (95C)
1998
Starts To Open .................................. 192
F (89C)
Fully Open ...................................... 203F (95C)
Eclipse
2.0L Turbo & 2.4L
Starts To Open .................................. 180
F (82C)
Fully Open ...................................... 203F (95C)
2.0L Non-Turbo
Starts To Open ................................ 195
F (90.5C)
Fully Open ..................................... 216F (102C)
Galant
Starts To Open .................................... 180
F (82C)
Fully Open ........................................ 203F (95C)
Mirage
Starts To Open ......................... 177-183
F (80.5-83.9C)
Fully Open ........................................ 203F (95C)
Montero
1997
Starts To Open .................................. 180
F (82C)
Fully Open ...................................... 203F (95C)
1998
Starts To Open .................................. 190
F (88C)
Fully Open ..................................... 212F (100C)
Montero Sport
Starts To Open ......................... 177-183
F (80.5-83.9C)
Fully Open ........................................ 203F (95C)
3000GT (SOHC)
Starts To Open .................................... 180
F (82C)
Fully Open ........................................ 203F (95C)
3000GT (DOHC)
Starts To Open .................................... 170
F (77C)
Fully Open ........................................ 194F (90C) \
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Page 775 of 1501
specified, replace solenoid. If solenoid tests as specified, go to
next step.
4) Ensure solenoid holds vacuum with nipple "B" unplugged,
and negative jumper wire connected. If solenoid does not test as
specified, replace solenoid. If solenoid tests as specified, go to
next step.
5) Check resistance between solenoid terminals. If resistance
is not 36-44 ohms at 68
F (20C), replace solenoid. If resistance is
as specified, go to step 7).
6) Turn ignition switch to ON position. Using scan tool, turn
fuel pressure solenoid on and off (item 09). Clicking sound should be
heard. If clicking sound is heard, go to step 9). If clicking sound is
not heard, go to next step.
7) Disconnect fuel pressure solenoid connector. Using DVOM,
check for voltage between chassis ground and fuel pressure solenoid
terminal No. 1. If battery voltage does not exist, repair wiring
harness as necessary. If battery voltage exists, go to next step.
8) Turn ignition switch to OFF position. Disconnect PCM
connector. Ground PCM connector terminal No. 48. Check continuity
between chassis ground and fuel pressure solenoid connector terminal
No. 2. If continuity does not exist, repair wiring harness as
necessary. If continuity exists, go to next step.
9) Test is complete. Intermittent problem may exist. Road
test vehicle (if necessary) and attempt to duplicate conditions that
caused original complaint. Recheck for DTCs. If no DTCs are displayed,
go to INTERMITTENT DTCS .
DTC P1400: MANIFOLD DIFFERENTIAL PRESSURE (MDP) SENSOR
CIRCUIT FAILURE
NOTE: For terminal identification, see TERMINAL IDENTIFICATION. For
circuit and wire color identification, see
L - WIRING DIAGRAMS article.
1) Component testing procedure without using scan tool not
available from manufacturer at time of publication. Warm vehicle to
normal operating temperature and allow engine to idle. Go to next
step.
2) Using scan tool, read intake manifold pressure (item 95).\
See INTAKE MANIFOLD PRESSURE SPECIFICATIONS table. If scan tool does
not read as specified, replace MDP sensor. If scan tool reads as
specified, go to next step.
INTAKE MANIFOLD PRESSURE SPECIFICATIONS TABLE
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Application psi (kPa)
Montero .............................. 3.0-4.9 (20.6-34.0)
3000GT
DOHC
Non-Turbo ........................ 3.7-5.7 (25.5-38.9)
Turbo ............................ 4.2-6.2 (29.0-42.4)
SOHC ............................... 3.9-5.8 (26.5-39.9)
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3) Disconnect MDP sensor connector. Using DVOM, check
continuity between chassis ground and MDP sensor connector terminal
No. 2. If continuity does not exist, repair wiring harness as
necessary. If continuity exists, go to next step.
4) Turn ignition switch to OFF position. With MDP sensor
connector disconnected, disconnect PCM connector. Ground PCM connector
terminal No. 92. Check continuity between chassis ground and MDP
sensor connector terminal No. 1. If continuity does not exist, repair
Page 780 of 1501
GENERATOR & REGULATOR
1998 Mitsubishi Montero
1998 STARTING & CHARGING SYSTEMS
Mitsubishi - Generators & Regulators
Diamante, Eclipse, Galant, Mirage, Montero, Montero Sport,
3000GT
DESCRIPTION & OPERATION
NOTE: The terms generator and alternator are interchangeable.
Mitsubishi generators are conventional 3-phase, self-
rectifying type units containing 6 diodes (3 positive and 3 negative)
which are used to rectify current. All models use a case-mounted
Integrated Circuit (IC) voltage regulator.
Generator relay or resistor with diode is used to ensure
charging of battery even if charging indicator light is defective.
ADJUSTMENTS
BELT TENSION
For belt tension, see DRIVE BELT ADJUSTMENT table.
DRIVE BELT ADJUSTMENT TABLE
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( 1) Deflection ( 1) Deflection
Application New Belt In. (mm) Used Belt In. (mm\
)
Diamante ( 2) ........... .24-.28 (6.0-7.2) ..... .32-.37 (8.2-9.3)
Eclipse
2.0L Non-Turbo ( 3) ... .30-.41 (7.5-10.5) ... .35-.47 (9.0-12.0)
2.0L Turbo ( 4) ....... .30-.35 (7.5-9.0) ............ .39 (10.0)
2.4L ( 4) ............. .30-.35 (7.5-9.0) ............ .39 (10.0)
Galant ( 4) ............. .30-.35 (7.5-9.0) ............ .39 (10.0)
Mirage ( 3)
1.5L ................. .36-.42 (9.2-10.6) .... .26-.33 (6.6-8.3\
)
1.8L ................. .33-.39 (8.5-10.0) .... .28-.31 (7.0-8.0\
)
Montero ( 4) ............ .22-.29 (5.5-7.5) ..... .31-.35 (8.0-9.0)
Montero Sport
2.4L ( 4) ............. .22-.29 (5.5-7.5) ..... .30-.33 (7.5-8.3)
3.0L ( 4) ............. .22-.29 (5.5-7.5) ..... .31-.35 (8.0-9.0)
3000GT
DOHC ( 5) ............. .14-.16 (3.5-4.0) ..... .16-.20 (4.0-5.0)
SOHC ( 6) ............. .16-.20 (4.0-5.0) ..... .24-.32 (6.0-8.0)
( 1) - With 22 lbs. (10 kg) pressure applied midway on belt run.
( 2) - Measure between A/C compressor pulley and crankshaft pulley.
( 3) - Measure between crankshaft pulley and generator pulley.
( 4) - Measure between water pump pulley and generator pulley.
( 5) - Measure between crankshaft pulley and idler pulley.
( 6) - Measure between power steering pulley and idler pulley.
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TROUBLE SHOOTING
NOTE: See TROUBLE SHOOTING article in the GENERAL INFORMATION
section.
Page 782 of 1501
GENERATOR OUTPUT TEST
NOTE: A slightly discharged battery should be used, as a fully
charged battery may not allow full generator output.
1) Turn ignition off. Disconnect negative battery cable.
Disconnect generator output wire from terminal "B". Connect positive
lead of 100-amp ammeter to terminal "B" and negative lead to
disconnected output lead.
CAUTION: Tighten each connection securely, as heavy current flow will
exist. DO NOT use clips on ammeter. An inductive-type
ammeter is recommended.
2) Connect positive voltmeter lead (0-20 volts) to generator\
terminal "B" and negative lead to ground. Install a tachometer and
reconnect negative battery cable.
3) Ensure voltmeter indicates battery voltage. If voltage is
not present, check for open circuit in wire between generator terminal
"B" and positive battery terminal. Check grounds and fusible link.
4) Start engine and turn headlights on. Set headlights at
high beam and heater blower switch on HIGH. Increase engine speed to
2500 RPM and note generator output current on ammeter. Minimum output
should be within specification. See
GENERATOR MINIMUM OUTPUT SPECIFICATIONS table.
NOTE: Output voltage changes with electrical load and temperature.
Ensure proper electrical load is applied while checking
output. Nominal output may not be obtained if generator or
ambient temperature is excessive. Allow generator or
temperature to cool, and recheck output. Generator output is
stamped on metal plate attached to generator case.
5) If minimum output is not obtained and generator wiring is
okay, repair generator. Operate engine at idle speed after the test.
GENERATOR MINIMUM OUTPUT SPECIFICATIONS TABLE
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Application Amps
Diamante ............................................. 110
Eclipse
2.0L Non-Turbo ...................................... 90
2.0L Turbo .......................................... 75
2.4L ................................................ 90
Galant ................................................ 90
Mirage ................................................ 80
Montero .............................................. 100
Montero Sport
2.4L ................................................ 60
3.0L ................................................ 85
3000GT
DOHC ............................................... 110
SOHC ................................................ 90
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REGULATED VOLTAGE TEST
NOTE: Ensure battery is fully charged and proper drive belt
tension exists.
1) Turn ignition switch off. Disconnect negative battery
cable. Connect positive voltmeter lead to terminal "S" of generator.
Page 786 of 1501
![MITSUBISHI MONTERO 1998 Service Manual Generator Adjusting Bolt
Diamante, Mirage, Montero & Montero Sport (3.0L) ......... 16 (22\
)
Eclipse, Galant & Montero Sport (2.4L) .............. 9-11 (12-15\
)
3000GT
DOHC ..........](/manual-img/19/57333/w960_57333-785.png "MITSUBISHI MONTERO 1998 Service Manual Generator Adjusting Bolt
Diamante, Mirage, Montero & Montero Sport (3.0L) ......... 16 (22\
)
Eclipse, Galant & Montero Sport (2.4L) .............. 9-11 (12-15\
)
3000GT
DOHC ..........")
Generator Adjusting Bolt
Diamante, Mirage, Montero & Montero Sport (3.0L) ......... 16 (22\
)
Eclipse, Galant & Montero Sport (2.4L) .............. 9-11 (12-15\
)
3000GT
DOHC ................................................... 33 (44)\
SOHC .............................................. 9-11 (12-15)\
Generator Pivot Bolt Nut
Diamante, Mirage & 3000GT (DOHC) ......................... 33 (44\
)
Eclipse, Galant & Montero Sport (2.4L) ............. 15-18 (20-25\
)
Montero & Montero Sport (3.0L) ........................... 38 (52\
)
3000GT (SOHC) ...................................... 15-18 (20-25\
)
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WIRING DIAGRAMS
Page 942 of 1501
Fig. 43: Wiring Diagram (3000GT 3.0L SOHC - 1 Of 3)