Page 3009 of 4731
![INFINITI FX35 2005 Service Manual EM-174
[VK45DE]
DRIVE BELTS
Revision: 2005 July 2005 FX
3. Under the above condition, insert a metallic bar of approximately 6 mm (0.24 in) in diameter (hexagonal
bar wrench shown as example in the f INFINITI FX35 2005 Service Manual EM-174
[VK45DE]
DRIVE BELTS
Revision: 2005 July 2005 FX
3. Under the above condition, insert a metallic bar of approximately 6 mm (0.24 in) in diameter (hexagonal
bar wrench shown as example in the f](/manual-img/42/57020/w960_57020-3008.png)
EM-174
[VK45DE]
DRIVE BELTS
Revision: 2005 July 2005 FX
3. Under the above condition, insert a metallic bar of approximately 6 mm (0.24 in) in diameter (hexagonal
bar wrench shown as example in the figure) through the holding boss to lock auto tensioner pulley arm.
Leave auto tensioner pulley arm locked until belt is installed again.
4. Remove alternator, water pump and A/C compressor belt.
Power Steering Oil Pump Belt
1. Remove air duct (inlet). Refer to EM-176, "AIR CLEANER AND AIR DUCT" .
2. Remove front engine undercover with power tool
3. Remove alternator, water pump and A/C compressor belt. Refer to EM-173, "
Alternator, Water Pump and
A/C Compressor Belt" .
4. While securely holding the hexagonal protrusion part of auto tensioner pulley with box wrench, move wrench handle in the
direction of arrow (loosening direction of tensioner).
CAUTION:
Avoid placing hand in a location where pinching may occur
if holding tool accidentally comes off.
5. Under the above condition, insert a metallic bar of approximately 6 mm (0.24 in) in diameter (hexagonal bar wrench shown as
example in the figure) through the holding boss to lock auto ten-
sioner pulley arm.
Leave auto tensioner pulley arm locked until belt is installed
again.
6. Remove power steering oil pump belt.
INSTALLATION
Note the following, and install in the reverse order of removal.
CAUTION:
Make sure belt is securely installed around all pulleys.
Make sure belt is correctly engaged with the pulley groove.
Check for engine oil and engine coolant are not adhered belt and pulley groove.
Check that belt tension is within the allowable working range, using indicator notch on auto ten-
sioner. Refer to EM-173, "
Checking Drive Belts" .
PBIC1543E
Page 3010 of 4731
![INFINITI FX35 2005 Service Manual DRIVE BELTS EM-175
[VK45DE]
C
D E
F
G H
I
J
K L
M A
EM
Revision: 2005 July 2005 FX
ComponentsABS00DFM
CAUTION:
The complete drive belt auto–tensioner must be replaced as a unit, includ INFINITI FX35 2005 Service Manual DRIVE BELTS EM-175
[VK45DE]
C
D E
F
G H
I
J
K L
M A
EM
Revision: 2005 July 2005 FX
ComponentsABS00DFM
CAUTION:
The complete drive belt auto–tensioner must be replaced as a unit, includ](/manual-img/42/57020/w960_57020-3009.png)
DRIVE BELTS EM-175
[VK45DE]
C
D E
F
G H
I
J
K L
M A
EM
Revision: 2005 July 2005 FX
ComponentsABS00DFM
CAUTION:
The complete drive belt auto–tensioner must be replaced as a unit, including the pulley.
Drive Belt Auto Tensioner and Idler PulleyABS006IA
REMOVAL
1. Remove air duct (inlet). Refer to EM-176, "AIR CLEANER AND AIR DUCT" .
2. Remove front engine undercover with power tool.
3. Remove drive belts. Refer to EM-173, "
Removal and Installation" .
Keep auto tensioner pulley arm locked after belt is removed.
4. Remove auto tensioner and idler pulley with power tool.
Keep auto tensioner pulley arm locked to install or remove auto tensioner.
CAUTION:
Do not loosen the hexagonal part in center of drive belt auto–tensioner pulley (Do not turn it clock-
wise). If turned clockwise, the complete drive belt auto–tensioner must be replaced as a unit,
including the pulley.
INSTALLATION
Install in the reverse order of removal.
CAUTION:
Do not swap the pulley between new and old drive belt auto–tensioner.
1. Auto tensioner ( Used for alternator,
water pump and A/C compressor) 2. Idler pulley 3. Auto tensioner (Used for power
steering oil pump belt)
PBIC2788E
Page 3011 of 4731
EM-176
[VK45DE]
AIR CLEANER AND AIR DUCT
Revision: 2005 July 2005 FX
AIR CLEANER AND AIR DUCTPFP:16500
ComponentsABS00DFN
Removal and InstallationABS006IB
REMOVAL
1. Remove engine cover with power tool. Refer to EM-172, "ENGINE ROOM COVER" .
2. Disconnect harness connector from mass air flow sensor.
3. Disconnect vacuum hose and PCV hose.
4. Remove air duct (inlet), air cleaner case and mass air flow sensor assembly, air duct and resonator assembly disconnecting their joints.
Add marks as necessary for easier installation.
5. Remove mass air flow sensor from air cleaner case. CAUTION:
Handle mass air flow sensor with following cares.
Do not shock it.
Do not disassemble it.
Do not touch its sensor.
1. Air duct and resonator assembly 2. Bracket 3. Vacuum hose
4. Mass air flow sensor 5. O-ring 6. Air cleaner case
7. Air cleaner filter 8. Cover 9. Air cleaner case
10. Resonator 11. Mounting rubber 12. Air duct (inlet)
13. Clip
PBIC1657E
Page 3012 of 4731
AIR CLEANER AND AIR DUCT EM-177
[VK45DE]
C
D E
F
G H
I
J
K L
M A
EM
Revision: 2005 July 2005 FX
INSPECTION AFTER REMOVAL
Inspect air duct and resonator assembly for crack or tear.
If anything found, replace air duct and resonator assembly.
INSTALLATION
Note the following, and install in the reverse order of removal.
Align marks. Attach each joint. Screw clamps firmly.
Changing Air Cleaner FilterABS00A2T
REMOVAL
1. Remove air duct (inlet), air cleaner case and mass air flow sensor assembly.
2. Remove air cleaner filter from air cleaner case.
INSTALLATION
Install in the reverse order of removal.
Page 3013 of 4731
EM-178
[VK45DE]
INTAKE MANIFOLD
Revision: 2005 July 2005 FX
INTAKE MANIFOLDPFP:14003
ComponentsABS00DFO
1. PCV tube 2. Engine cover rear bracket 3. EVAP canister purge control sole-
noid valve
4. EVAP hose 5. EVAP tube 6. EVAP hose
7. Vacuum gallery 8. Engine cover front bracket 9. Vacuum tank
10. VIAS control solenoid valve 11. Water gallery 12. Gasket
13. Intake manifold (lower) 14. Gasket 15. Water hose
16. Intake manifold adapter 17. Electric throttle control actuator 18. Gasket
19. Intake manifold (upper) 20. Resonator 21. EVAP service port
PBIC2755E
Page 3014 of 4731
![INFINITI FX35 2005 Service Manual INTAKE MANIFOLD EM-179
[VK45DE]
C
D E
F
G H
I
J
K L
M A
EM
Revision: 2005 July 2005 FX
Removal and InstallationABS006IC
REMOVAL
WARNING:
To avoid the danger of being scalded, never drain INFINITI FX35 2005 Service Manual INTAKE MANIFOLD EM-179
[VK45DE]
C
D E
F
G H
I
J
K L
M A
EM
Revision: 2005 July 2005 FX
Removal and InstallationABS006IC
REMOVAL
WARNING:
To avoid the danger of being scalded, never drain](/manual-img/42/57020/w960_57020-3013.png)
INTAKE MANIFOLD EM-179
[VK45DE]
C
D E
F
G H
I
J
K L
M A
EM
Revision: 2005 July 2005 FX
Removal and InstallationABS006IC
REMOVAL
WARNING:
To avoid the danger of being scalded, never drain the engine coolant when the engine is hot.
1. Remove engine cover with power tool. Refer to EM-172, "
ENGINE ROOM COVER" .
2. Release fuel pressure. Refer to EC-789, "
FUEL PRESSURE RELEASE" .
3. Drain engine coolant. Refer to CO-37, "
Changing Engine Coolant" .
4. Remove air duct (inlet), air cleaner case and mass air flow sensor assembly, air duct and resonator assembly. Refer to EM-176, "
AIR CLEANER AND AIR DUCT" .
5. Disconnect fuel feed hose quick connector on engine side. Refer to EM-192, "
FUEL INJECTOR AND FUEL TUBE" .
6. Remove fuel damper and fuel hose assembly. Refer to EM-192, "
FUEL INJECTOR AND FUEL TUBE" .
CAUTION:
While hoses are disconnected, plug them to prevent fuel from draining.
Do not separate fuel damper and fuel hose.
7. Remove or disconnect harnesses, brackets, vacuum hose, vacuum gallery and PCV hose and tube from intake manifold (upper).
8. Remove electric throttle control actuator as follows:
a. Disconnect harness connector.
b. Loosen mounting bolts diagonally. CAUTION:
Handle carefully to avoid any shock to electric throttle control actuator.
Do not disassemble.
9. Disconnect water hoses from water gallery.
10. Remove intake manifold adaptor and water gallery.
11. Loosen mounting bolts in reverse order as shown in the figure to remove intake manifold (upper) with power tool.
12. Remove vacuum tank form intake manifold (lower).
13. Remove fuel injector and fuel tube assembly. Refer to EM-192, "
FUEL INJECTOR AND FUEL TUBE" .
SBIA0353E
PBIC0014E
Page 3015 of 4731
![INFINITI FX35 2005 Service Manual EM-180
[VK45DE]
INTAKE MANIFOLD
Revision: 2005 July 2005 FX
14. Loosen mounting bolts in reverse order as shown in the figure to
remove intake manifold (lower) with power tool.
15. Remove intake man INFINITI FX35 2005 Service Manual EM-180
[VK45DE]
INTAKE MANIFOLD
Revision: 2005 July 2005 FX
14. Loosen mounting bolts in reverse order as shown in the figure to
remove intake manifold (lower) with power tool.
15. Remove intake man](/manual-img/42/57020/w960_57020-3014.png)
EM-180
[VK45DE]
INTAKE MANIFOLD
Revision: 2005 July 2005 FX
14. Loosen mounting bolts in reverse order as shown in the figure to
remove intake manifold (lower) with power tool.
15. Remove intake manifold gaskets. CAUTION:
Cover engine openings to avoid entry of foreign materials.
INSPECTION AFTER REMOVAL
Surface Distortion
Check the surface distortion of both the intake manifold (upper
and lower) mating surfaces with straightedge and feeler gauge.
If it exceeds the limit, replace intake manifolds (lower and/or
upper).
INSTALLATION
Note the following, and install in the reverse order of removal:
Intake Manifold (Lower)
Tighten in numerical order as shown in the figure.
There are two types of mounting bolts. Refer to the following for
locating bolts.
Intake Manifold (Upper)
Tighten in numerical order as shown in the figure.
There are two types of mounting bolts. Refer to the following for
locating bolts
PBIC0015E
Limit : 0.1 mm (0.004 in)
PBIC0016E
M8 × 90 mm (3.54 in) : 7, 8
M8 × 35 mm (1.38 in) Except the above
PBIC0015E
M8 × 80 mm (3.15 in) : 4, 5, 6, 7
M8 × 25 mm (0.98 in) : Except the above
PBIC0014E
Page 3016 of 4731
![INFINITI FX35 2005 Service Manual INTAKE MANIFOLD EM-181
[VK45DE]
C
D E
F
G H
I
J
K L
M A
EM
Revision: 2005 July 2005 FX
Electric Throttle Control Actuator
Install intake manifold adapter gasket and electric throttle con INFINITI FX35 2005 Service Manual INTAKE MANIFOLD EM-181
[VK45DE]
C
D E
F
G H
I
J
K L
M A
EM
Revision: 2005 July 2005 FX
Electric Throttle Control Actuator
Install intake manifold adapter gasket and electric throttle con](/manual-img/42/57020/w960_57020-3015.png)
INTAKE MANIFOLD EM-181
[VK45DE]
C
D E
F
G H
I
J
K L
M A
EM
Revision: 2005 July 2005 FX
Electric Throttle Control Actuator
Install intake manifold adapter gasket and electric throttle control actuator gasket so that three protrusions
for installation identification do not face downward.
Tighten mounting bolts of electric throttle control actuator equally and diagonally in several steps.
After installation perform procedure in EM-181, "INSPECTION AFTER INSTALLATION" .
Water Hose
Insert hose by 27 to 32 mm (1.06 to 1.26 in) from connector end.
Vacuum Hose
Refer to EC-810, "Vacuum Hose Drawing" .
INSPECTION AFTER INSTALLATION
Perform the “Throttle Valve Closed Position Learning” when harness connector of electric throttle control
actuator is disconnected. Refer to EC-786, "
Throttle Valve Closed Position Learning" .
Perform the “Idle Air Volume Learning” and “Throttle Valve Closed Position Learning” when electric throt-
tle control actuator is replaced. Refer to EC-787, "
Idle Air Volume Learning" .