Page 114 of 800
EMISSION CONTROL
ENGINE AND EMISSION CONTROL17-8
VACUUM HOSE INSTALLATION
M1173007200107
1. When connecting the vacuum hoses, they should
be securely inserted onto the nipples.
2. Connect the hoses correctly, using the vacuum hose piping diagram as a guide.
CRANKCASE EMISSION CONTROL
SYSTEM
GENERAL INFORM ATION (CRANKCASE
EMISSION CONTROL SYSTEM)
M1173005000237
The crankcase emission control system prevents
blow-by gases from escaping inside the crankcase
into the atmosphere.
Fresh air is sent from the air cleaner into the crank-
case through the breather hose.
The air becomes mixed wi th the blow-by gases
inside the crankcase.
The blow-by gas inside the crankcase is drawn into
the intake manifold through the positive crankcase
ventilation (PCV) valve.
The PCV valve lifts the plunger according to the
intake manifold vacuum so as to regulate the flow of
blow-by gas properly.
In other words, the blow-by gas flow is regulated dur-
ing low load engine operation to maintain engine sta-
bility, while the flow is increased during high load
operation to improve the ventilation performance.
SYSTEM DIAGRAM
AK204365
Air cleaner
Air
Ventilation hose Breather hose
PCV valve
AB
Page 116 of 800
EMISSION CONTROL
ENGINE AND EMISSION CONTROL17-10
SYSTEM DIAGRAM
AK204367AC
Throttle body
Canister
From
fuel
tank
OFF
ON Purge
control
solenoid
valve
Control
relay
Battery Engine-ECU <4G1-M/T, 4G6>,
Engine-A/T-ECU <4G1-A/T>
Air flow sensor <4G6>Engine coolant
temperature sensor
Intake air
temperature sensor
Barometric pressure
sensor <4G6>
Manifold absolute pressure
(MAP) sensor <4G1>
COMPONENT LOCA
TION (EV A PORA TIVE
EMISSION CONTROL SYSTEM)
M1173 0075 0021 6
AK300769
<4G1>
AB
Purge control
solenoid valve
AK300770
<4G6>
AB
Purge control
solenoid valve
PURGE CONTROL SYSTEM CHECK
M1173 0014 0029 9
AK300771
<4G1>
AB
Plug
Vacuum hose
AK300772
<4G6>
AB
Plug
Vacuum hose
1.Disco nnect the vacu um h o se (re d str i pe) fro m
th rottle body and conne ct it to a h and vacu um
pu m p .
Page 119 of 800
Page 120 of 800
AK302349AB
<4G6>EGR
control
Solenoid
valve
EGR valve OFF
ON
Control
relay
Battery Engine-ECU
Barometric pressure
sensor
Air flow sensor
Engine coolant
temperature sensor
Crank angle sensor
EMISSION CONTROL
ENGINE AND E M ISSION CON T ROL17-14
COMPONENT LOCATION (EGR SYSTEM)
M1173 0076 0022 4
AK300776
<4G1>
AB
EGR control
solenoid valve
AK300778
<4G6>
AB
EGR control
solenoid valve
AK300777
<4G1>
AB
EGR valve
AK300779AB
<4G6>
EGR valve
Page 141 of 800
Page 142 of 800
FRONT AXLE HUB ASSEMBLY
FRONT AXLE26-10
<> DRIVESHAFT REMOVAL
AC100128
MB990241
MB990767
AG
AC303949
MB990244
(Three)
MB990767
MB990242
MB991354
AF
1.
Use the fo llo wing special to ols to pu sh ou t the
driveshaf t from the hub an d kn uckle.
•Axle shaf t puller (MB9 90241 )
•Puller shaft (MB990 242)
•Puller bar (MB990 244)
•Puller body (MB99135 4)
•
AC102551
AC
Driveshaft
Front hub a nd end yoke holder (MB99076 7)
2.Withdraw th e driveshaf t from the hu b by pulling
th e botto m of the hub and knuckle towards you .
3.Hang the dr ive s haf t on the vehicle b ody with a
rope.
INST ALLA T ION SER VICE POINT
>>A<< STABILIZER RUB-
BER/SELF-LOCKING NUT (ST A BILIZER
BAR CONNECTION) INST
ALLA TION
AC210393AC
A
I
n st a ll the st a b ili zer rubb er an d coll ar as sho w n in t he
figure
, and t i ghte n the self-locking nut so tha t the
protruding length
of the st abilize r bar mount ing b o lt
protruding p
a rt meet s it s st and ard value (A).
St andard va lue (A): 22 ± 1.5 m m
>>B<< W A SHER/ DRIVESHAFT NUT
INST
ALLA TION
CAUTION
Before securely tightening the driveshaft nuts,
make sure there is no load on the wheel bear
-
ings. Otherwise the wheel bearings will be dam-
aged.
AC102465AD
MB990767
Washer
1. Be sure to install the driveshaft washer in the
specified direction.
2. Using special tool front hub and end yoke holder (MB990767), tighten the driveshaft nut to the
specified torque.
Tightening torque: 245 ± 29 N⋅m
Page 143 of 800
Page 144 of 800
FRONT AXLE HUB ASSEMBLY
FRONT AXLE26-12
<> WHEEL BEARING REMOVAL
AC102508AC
Inner race
(outside)
Outer oil seal
1. Crush th e oil seal in two pl ace s so t hat t he t abs of
th e spe c ia l too l will be caugh t on th e wheel
be aring inne r race (out side).
CAUTION
When removing the inner race (outside) from the
hub, be careful not to let the hub drop.
AC102509
MB990810
Inner race
(outside)
AC
2. Remove the wheel bearing inner race (outside) from the front hub by using special tool side
bearing puller (MB990810).
AC102510 AC
MB990938
MB990935
MB991056 or MB991355
Inner race
(outside)
3. Install the inner race (outside) that was removed
from the hub to the wheel bearing, and then use
the following special tools to remove the wheel
bearing.
•Installer bar (MB990938)
•Installer adapter (MB990935)
•Knuckle arm bridge (MB991056 or MB991355)
REASSEMBLY SERVICE POINTS
>>A<< WHEEL BEARING INSTALLATION
1. Fill the wheel bearing with multipurpose grease.
2. Apply a thin coating of multipurpose grease to the knuckle and bearing contact surfaces.
CAUTION
Press the outer race when pressing-in the wheel
bearing. Otherwise the wheel bearing will be
damaged.
AC102511
MB990883
MB990890
AC
3. Press-in the bearing by using the following special tools.
•Rear suspension bushing arbor (MB990883)
•Rear suspension bushing base (MB990890)
>>B<< HUB STARTING TORQUE CHECK
AC210929AC
MB991000
MB991017
245 ± 29 N·m
Tighten the nut
with the bolt secured
1. Tighten the following special tools to the specified torque, and then press-in the hub into the knuckle.
•Front hub remover and installer (MB991017)
•Spacer (MB991000)
2. Rotate the hub in order to seat the bearing.
