Page 659 of 1449

MPI -On-vehicle Service13A-127
4. If not within the standard value, loosen the throttle position
sensor mounting bolts. Then rotate the sensor body to
adjust.
5. Turn the ignition switch to “LOCK” (OFF) position.
6. Remove the MUT-II. If the MUT-IIis not used, remove
the special tool, and then connect the throttle position
sensor connector.
7. If a diagnosis code is displayed, erase the diagnosis code
by using the MUT-IIor disconnect the negative battery
cable from the battery terminal and then leave it for at
least ten seconds. After that, reconnect the battery cable,
and then let the engine run at idle for approximately 10
minutes.
BASIC IDLE SPEED ADJUSTMENT
NOTE
(1) The basic idling speed has been adjusted by the
speed adjusting screw by the manufacturer, and there
should usually be no need for readjustment.
(2) If the adjustment has been changed by mistake, the
idle speed may become too high or the idle speed
may drop too low when loads from components such
as the A/C are placed on the engine. If this occurs,
adjust by the following procedure.
(3) The adjustment, if made, should be made after first
confirming that the spark plugs, the injectors, the idle
speed control servo, the compression pressure, etc.,
are all normal.
1. Before inspection and adjustment, set the vehicle to the
pre-inspection condition.
2. Connect the MUT-IIto the diagnosis connector (16-pin).
NOTE
When the MUT-IIis connected, the diagnosis control
terminal should be earthed.
3. Start the engine and run at idle.
4. Select the item No. 30 of the MUT-IIActuator test.
NOTE
This holds the idle speed control servo at the basic step
to adjust the basic idle speed.
5. Check the basic idle speed.
Standard value: 850±100 r/min
NOTE
(1) The engine speed may be 20 to 100 r/min lower
than indicated above for a new vehicle [driven
approximately 500 km or less], but no adjustment
is necessary.
(2) If the engine stalls or the engine speed is low even
though the vehicle has been driven approximately
500 km or more, it is probable that deposits are
adhered to the throttle valve, so clean it. (Refer to
P.13A-126.)
Page 700 of 1449

ENGINE COOLING -Thermostat14-12
INSTALLATION SERVICE POINTS
"AATHERMOSTAT INSTALLATION
Install the thermostat being careful not to fold over or scratch
the rubber ring.
Caution
Make absolutely sure that no oil is adhering to the rubber
ring of the thermostat. In addition, be careful not to fold
over or scratch the rubber ring when inserting. If the
rubber ring is damage, replace the thermostat.
"BARADIATOR UPPER HOSE CONNECTION
1. Insert each hose as far as the projection of the water
outlet fitting.
2. Align the mating marks on the radiator hose and hose
clamp, and then connect the radiator hose.
INSPECTION
THERMOSTAT CHECK
1. Immerse the thermostat in water, and heat the water while
stirring. Check the thermostat valve opening temperature.
Standard value:
Valve opening temperature: 80±1.5_C
2. Check that the amount of valve lift is at the standard value
when the water is at the full-opening temperature.
Standard value:
Full-opening temperature: 93_C
Amount of valve lift: 9.5 mm or more
NOTE
Measure the valve height when the thermostat is fully
closed, and use this measurement to calculate the valve
height when the thermostat is fully open.
Valve lift
Page 701 of 1449
ENGINE COOLING -Water Pump14-13
WATER PUMP
Caution
If the vehicle is equipped with the Brembo disc brake, during maintenance, take care not to contact
the parts or tools to the caliper because the paint of caliper will be scratched.
REMOVAL AND INSTALLATION
Pre-remobal and Post-installation Operation
DEngine Coolant Draining and Supplying (Refer to P.14-6.)
DTiming Belt Removal and installation (Refer to GROUP 11A.)
1
Bolt specifications
28×22
2
23±3 N·m
14±1 N·m
Nominal diameter×Nominal length mm
8×70
8×14
8×22 8×25
3 4
22±4 N·m
Removal steps
1. Alternator brace
2. Water pump
3. Water pump Gasket
"AA4. O-ring
INSTALLATION SERVICE POINT
"AAO-RING INSTALLATION
Fit an O-ring into the O-ring groove located at the end of
the water inlet pipe and apply water to the O-ring or the
inside of the mounting surface of the water pump for insertion.
CAUTION
Do not let the O-ring get contaminated with grease, such
as engine oil.Water pump
O-ring
Water inlet pipe
Page 703 of 1449

ENGINE COOLING -Water Hose and Water Pipe/Radiator14-15
REMOVAL SERVICE POINT
AA"RADIATOR UPPER HOSE/RADIATOR LOWER
HOSE DISCONNECTION
After making mating marks on the hose and the hose clamp,
disconnect the hose.
INSTALLATION SERVICE POINTS
"AAO-RING INSTALLATION
Fit an O-ring into the groove of the water inlet pipe and
apply water to the circumference of the O-ring or the
inside of the mounting surface of the pipe for insertion.
CAUTION
Do not let the O-ring get contaminated with grease, such
as engine oil.
"BAWATER INLET PIPE INSTALLATION
After installing the water outlet fitting and the thermostat
case assembly, tighten the mounting bolt of the water
inlet pipe to the specified torque.
"CARADIATOR LOWER HOSE/RADIATOR UPPER
HOSE CONNECTION
1. Insert each hose as far as the projection of the water
inlet pipe or water outlet fitting.
2. Align the mating marks on the radiator hose and hose
clamp, and then connect the radiator hose.
INSPECTION
WATER PIPE AND HOSE CHECK
Check the water pipe and hose for cracks, damage, clog
and replace them if necessary.
RADIATOR
REMOVAL AND INSTALLATION
Pre-remobal and Post-installation Operation
DEngine Coolant Draining and Supplying (Refer to P.14-6.)
DUnder Cover Removal and Installation (Refer to GROUP 51 - Front Bumper.)
DAir Cleaner Assembly Removal and Installation (Refer to GROUP 15.)
DAir Hose E, Air Pipe C, Air hose D Removal and Installation (Refer to GROUP 15 - Intercooler.)
DBattery and Battery Tray Removal and Installation
Water pump or
thermostat case
O-ring
Warter inlet pipe
Page 704 of 1449
ENGINE COOLING -Radiator14-16
1 23
45
6
7
12±2 N·m
9
16
14 19
18 12
17 10
8
13
15 10
20 21
12±2 N·m5.0±1.0 N·m
3.5±0.4 N·m
4.5±0.4 N·m4.0±0.4 N·m
13
1112±1 N·m
Radiator removal steps
1. Radiator drain plug
2. Radiator cap
3. Reserve tank hose
4. Reserve tank
5. Reserve tank cap
6. Reserve tank hose
7. Reserve tank bracket
AA""AA8. Radiator upper hose
AA""AA9. Radiator lower hose
10. Upper insulator
AB"11. Air Pipe B mounting bolt
12. Radiator assembly
13. Lower insulator
14. Radiator fan controller connector
15. Radiator fan controller, radiator fan
motor, fan and shroud assemblyRadiator fun controller and radiator
fun motor removal steps
AB"11. Air Pipe B mounting bolt
14. Radiator fan controller connector
16. Radiator fan motor connector
17. Radiator fan controller
18. Radiator fan motor fan and shroud
assembly
19. Fan
20. Radiator fan motor
21. Shroud
Page 705 of 1449
ENGINE COOLING -RadiatorENGINE COOLING -Radiator14-17
REMOVAL SERVICE POINTS
AA"RADIATOR UPPER HOSE/RADIATOR LOWER
HOSE REMOVAL
After making mating marks on the radiator hose and the hose
clamp,disconnect the radiator hose.
AB"AIR PIPE B MOUNTING BOLT REMOVAL
After removing the bolt, position air pipe B out of the way
so that the pipe does not interfere with the radiator assembly
or the radiator fan motor, the fan and shroud assembly.
INSTALLATION SERVICE POINT
"AARADIATOR LOWER HOSE/RADIATOR UPPER
HOSE INSTALLATION
1. Insert each hose as far as the projection of the water
inlet pipe, water outlet fitting or radiator.
2. Align the mating marks on the radiator upper hose and
hose clamp, and then connect the radiator hose.
Page 743 of 1449
ENGINE ELECTRICAL -Charging System16-11
1
234
5
8.8±1.0 N·m 22±4 N·m
23±3 N·m11±1 N·m
13±1 N·m
8
(Engine oil)
679
10
20±2 N·m 36±6 N·m
1211
44±10 N·m
14±3 N·m
13
1415 18
1617
9.0±1.0 N·m
9.0±1.0 N·m5.0±1.0 N·m
Removal steps
1. Oil level gauge and guide assembly
2. O-ring
3. Fuel pressure solenoid valve
connector
4. Fuel pressure solenoid valve
assembly
5. Detonation sensor connector
6. Purge control solenoid valve
connector
7. Purge control solenoid valve assembly
8. Injector connector
AA"9. Delivery pipe, injector, and fuel
pressure regulator assembly10. Insulator
11. Insulator
AB"12. Drive belt
13. Alternator connector
DEngine mounting
(Refer to GROUP 32.)
AC"14. Alternator
15. Water pump pulley
16. Alternator brace
17. Oxygen sensor connector
18. Alternator brace stay
Page 859 of 1449

MANUAL TRANSMISSION - Transfer Assembly22A-51
AB"DRIVE SHAFT /DRIVE SHAFT
DISCONNECTION
1. As shown in the figure, pull out the transfer shaft
from the transmission using the pry bar. As shown in
the illustration, press a hammer, etc. against the driveshaft
, and pull out the driveshaft from the transfer
assembly using the pry shaft.
Caution
As the TJ may damage when the driveshaft is pulled
out from the BJ side, be sure to use the lever.
2. Cover with a cloth to prevent foreign particles from entering
the transfer.
AC"OUTPUT SHAFT REMOVAL
1. Using the special tool (MB991721), remove the output
shaft.
2. Cover with a cloth to prevent foreign particles from entering
the transmission case.
AD"TRANSFER ASSEMBLY REMOVAL
With the engine mount and transmission mount installed,
roll the engine and transmission assembly towards the front
of the vehicle, and remove the transfer assembly from between
the engine block and crossmember.
Transmission
side
Pry bar
Pry barHammer
Protrusion
MB991721
Output shaft
Engine and
transmission
assembly
Transfer assembly
Front of the vehicle