jump start MITSUBISHI MONTERO 1991 Service Manual

Check blower switch and relay. Check A/C compressor clutch coil.
2) Ensure system is properly charged with correct amount of
refrigerant. Add refrigerant or evacuate and recharge system as
necessary. Ensure receiver-drier is not clogged. Check compressor belt
for proper tension. Check for clogged expansion valve. Check
compressor operation. Repair or replace compressor as necessary.
INSUFFICIENT AIRFLOW
Check for air leakage at air duct joint. Check for frost on
evaporator. Ensure blower motor is operating properly. Check for
obstructed air intake.
INSUFFICIENT COOLING
Ensure system is properly charged with correct amount of
refrigerant and free of air and moisture. Add refrigerant or evacuate
and recharge system as necessary. Ensure receiver-drier is not
clogged. Ensure sufficient airflow through condenser exists. Check
compressor belt for proper tension. Check compressor operation. Repair
or replace compressor as necessary. Check for clogged expansion valve.
Replace expansion valve as necessary.
INTERMITTENT COOL AIR
Check for air or moisture in system. Evacuate and recharge
system as necessary. Check for expansion valve malfunction. Replace
expansion valve if necessary. Check compressor belt for proper
tension.
TESTING
A/C SWITCH
1) Disconnect A/C switch harness connector. Using appropriate
wiring diagram as a guide, jumper appropriate terminals of A/C switch
wiring harness connector. See Fig. 4.
2) Turn blower on and momentarily turn ignition on without
starting engine. Listen for compressor clutch engagement. If
compressor clutch does not engage, check fuse and other components
wired in series with compressor clutch.
Fig. 4: A/C Switch Connector ID
Courtesy of Mitsubishi Motor Sales of America.
AIR THERMO & AIR INLET SENSORS

Eclipse & Galant ............. TEST NO. 2
2.4L
Pickup & Ram-50 .............. TEST NO. 1
3.0L
Montero, Pickup, Ram-50,
Stealth & 3000GT ............ TEST NO. 2









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Test No. 1
1) Loosen throttle cable. Turn ignition on for more than 15
seconds. DO NOT start engine. Turn ignition off. This should fully
retract ISC motor plunger.
2) On 2.0L Galant (VIN V), connect jumper wire between
ignition timing adjustment connector and ground. See IGNITION TIMING
ADJUSTMENT CONNECTOR LOCATION table under IGNITION TIMING.
3) On all models, disconnect harness connector(s) from Idle
Speed Control (ISC) motor. Ensure ISC plunger is in fully retracted
position. Unscrew fixed Speed Adjusting Screw (SAS) until throttle
valve is fully closed. See Fig. 1.
CAUTION: When cleaning throttle body, plug air by-pass hole in
throttle body to prevent solvent from entering passage.
4) Start engine. Check basic idle speed. See IDLE SPEED
SPECIFICATIONS table. If basic idle speed is within specification, go
to step 7). If basic idle speed is not within specification, remove
air intake hose and clean throttle body. Reconnect air intake hose.
Recheck basic idle speed.
5) If basic idle speed is still not within specification
after cleaning throttle body, adjust basic idle speed by turning idle
speed adjusting screw. See Fig. 1. After adjusting basic idle speed,
turn fixed SAS screw clockwise until engine speed begins to increase.
6) Turn fixed SAS screw counterclockwise until engine speed
decreases. Turn fixed SAS screw counterclockwise an additional 1/2
turn from point at which engine speed no longer decreases. Turn off
engine.
7) Adjust throttle cable. Reconnect harness connector(s) at
ISC motor. Start engine. Operate engine for about 5 minutes. Ensure
engine idles within curb idle speed specification. See IDLE SPEED
SPECIFICATIONS table.
8) Turn ignition off. Disconnect negative battery cable for
at least 10 seconds to clear diagnostic trouble code. Reconnect
negative battery cable. Operate engine at idle for about 5 minutes to
ensure engine idles smoothly.
Test No. 2
1) Locate ignition timing adjustment connector. See IGNITION
TIMING ADJUSTMENT CONNECTOR LOCATION table under IGNITION TIMING.
Connect jumper wire between ignition timing adjustment connector and
ground.
2) Locate diagnostic connector under instrument panel.
Connect jumper wire between diagnostic connector terminal No. 10
(White wire) and ground. See Fig. 3. Start engine. Check basic idle
speed. See IDLE SPEED SPECIFICATIONS table. If basic idle speed is
within specification, go to step 9). If basic idle speed is not within
specification, go to step 3).
3) Remove air intake hose. Check throttle body. If throttle
body contains deposits, go to next step. If throttle body is clean,
disconnect jumper wires connected in steps 1) and 2). On all models
except Eclipse, Galant and Mirage, go to step 6). On Eclipse, Galant
and Mirage, go to step 5).
CAUTION: When cleaning throttle body, plug air by-pass hole in

STARTER NO LOAD SPECIFICATIONS








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Starter Test Maximum Amps @
Application Type (1) Voltage Minimum RPM
Diamante ............ GR .......... 11 .......... 90 @ 3000
Expo/Expo LRV
1.8L ............. DD ......... 11.5 ......... 53 @ 6000
1.8L ............. GR .......... 11 .......... 90 @ 3000
2.4L ............. DD ......... 11.5 ......... 60 @ 6600
2.4L ............. GR .......... 11 .......... 90 @ 3000
Eclipse
1.8L .............. DD ......... 11.5 ......... 60 @ 6600
2.0L .............. GR .......... 11 .......... 90 @ 3000
Galant
A/T & M/T DOHC .... GR .......... 11 .......... 90 @ 3000
M/T SOHC .......... DD ......... 11.5 ......... 60 @ 6600
Mirage
1.5L
A/T ............. DD ......... 11.5 ......... 60 @ 6600
M/T ............. DD ......... 11.5 ......... 60 @ 6500
1.6L .............. GR .......... 11 .......... 90 @ 3000
Montero ............. GR .......... 11 .......... 90 @ 3000
Pickup
2.4L A/T & 3.0L ... GR .......... 11 .......... 90 @ 3000
2.4L M/T .......... DD ......... 11.5 ......... 60 @ 6600
Precis
A/T ............... DD ......... 11.5 ......... 60 @ 6600
M/T ............... DD ......... 11.5 ......... 60 @ 6500
3000GT .............. GR .......... 11 .......... 90 @ 3000
( 1) - The letters DD indicates direct drive and GR indicates gear
reduction.









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PULL-IN COIL TEST
CAUTION: Perform tests in less than 10 seconds to prevent coil
damage.
1) Disconnect field coil wire from terminal "M" at starter
solenoid. See Fig. 2. Connect jumper wire between positive battery
terminal of 12-volt battery and terminal "S" of solenoid.
2) Connect a second jumper wire from negative battery
terminal and touch terminal "M" of starter solenoid. See Fig. 2. If
solenoid plunger moves inward, solenoid is good. If not, replace
solenoid.
Fig. 2: Starter Solenoid Terminal Identification
Courtesy of Chrysler Motors.
HOLD-IN COIL TEST

CAUTION: Perform tests in less than 10 seconds to prevent coil
damage.
1) Disconnect field coil wire from terminal "M" at starter
solenoid. See Fig. 2. Connect jumper wire between positive battery
terminal of 12-volt battery and terminal "S" of starter solenoid.
2) Connect a second jumper wire from negative battery
terminal and touch starter case. If solenoid plunger is pulled-in,
hold-in coil is good. If not, replace solenoid.
RETURN TEST
CAUTION: Perform tests in less than 10 seconds to prevent coil
damage.
1) Disconnect field coil wire from terminal "M" at starter
solenoid. See Fig. 2. Connect jumper wire between positive battery
terminal of 12-volt battery and terminal "M" of starter solenoid.
2) Connect a second jumper wire from negative battery
terminal and touch starter case. Pull pinion outward and release it.
Replace solenoid if pinion remains outward.
PINION GAP CHECK
1) Disconnect field coil wire from terminal "M" at starter
solenoid. See Fig. 2. Connect jumper wire between positive battery
terminal of 12-volt battery and terminal "S" of starter solenoid.
2) Connect a second jumper wire from negative battery
terminal and touch terminal "M" of starter solenoid. See Fig. 2.
Measure clearance between pinion and stopper. See Fig. 3.
3) Clearance should be within specification. See STARTER
SPECIFICATIONS table. Adjust clearance by adding or removing gaskets
between solenoid and front housing.
Fig. 3: Measuring Pinion Gap
Courtesy of Mitsubishi Motor Sales of America.
REMOVAL & INSTALLATION

Fig. 3: Identifying Rear Wiper Motor Terminals (Montero)
Courtesy of Mitsubishi Motor Sales of America.
Automatic Stop Check (Montero)
1) Start motor operation by connecting battery voltage to one
terminal and grounding another terminal. See
REAR WIPER MOTOR OPERATION CHECK table. See Fig. 3. Disconnect wires
during operation to stop motor in mid-sweep.
2) Jumper terminals No. 2 and 3 together. Connect battery
voltage to remaining terminal and ground wiper motor bracket. Ensure
motor parks wiper arm.
REAR WIPER RELAY
Operation Check (Montero)
Relay is located to right of heater blower assembly. Leave
intermittent relay connected to wiring harness. Operate rear wiper and
check voltage at terminal No. 1. See Fig. 4. There should be 12 volts
when rear wiper stops. Zero volts should be present when rear wiper is
operating.
Fig. 4: Identifying Rear Wiper Relay Terminals
Courtesy of Mitsubishi Motor Sales of America.
REAR WIPER SWITCH