2006 INFINITI FX35 engine removal

TRANSMISSION ASSEMBLY AT-271
D E
F
G H
I
J
K L
M A
B
AT
Revision: 2006 December 2006 FX35/FX45
11. Remove crankshaft position sensor (POS) from A/T assembly. CAUTION:

Do not subject it to impact by dropping or hitting it.

Do not disassemble.

Do not allow metal filings, etc., to get on the sensor's
front edge magnetic area.

Do not place in an area affected by magnetism.
12. Remove starter motor. Refer to SC-16, "
VQ35DE ENGINE
MODELS (AWD)" (for VQ35DE) or SC-14, "VK45DE ENGINE
MODELS" (for VK45DE).
13. Disconnect fluid cooler tube from A/T assembly.
14. Remove rear plate cover. Refer to EM-36, "
Removal and Instal-
lation (AWD Models)" (for VQ35DE) or EM-187, "Removal and
Installation" (for VK45DE).
15. Turn crankshaft, and remove the four tightening bolts for drive plate and torque converter.
CAUTION:
When turning crankshaft, turn it clockwise as viewed from
the front of the engine.
16. Remove dynamic damper (for VQ35DE). Refer to EM-118,
"Removal and Installation (AWD Models)" .
17. Support A/T assembly with a transmission jack. CAUTION:
When setting the transmission jack, be careful not to allow
it to collide against the drain plug.
18. Remove rear engine mounting member with power tool.
19. Remove engine mounting insulator (rear).
20. Tilt the A/T assembly slightly to keep the clearance between body and A/T assembly, and then disconnect air breather hose
from A/T fluid charging pipe. Refer to AT- 2 6 4 , "
Removal and
Installation" .
21. Disconnect A/T assembly harness connector and transfer assembly harness connector.
22. Remove A/T fluid charging pipe.
23. Remove O-ring from A/T fluid charging pipe.
24. Plug up openings such as the A/T fluid charging pipe hole, etc.
25. Remove bolts fixing transmission assembly to engine with power tool.
SCIA2011E
SCIA5326E
SCIA2010E
SCIA2202E

AT-272
TRANSMISSION ASSEMBLY
Revision: 2006 December 2006 FX35/FX45
26. Remove A/T assembly with transfer from vehicle.

Secure torque converter to prevent it from dropping.

Secure A/T assembly to a jack.
27. Remove transfer from A/T assembly. Refer to TF-44, "
Removal
and Installation" .
INSPECTION
Installation and Inspection of Torque Converter

After inserting a torque converter to a A/T, be sure to check dis-
tance “A” to ensure it is within the reference value limit.
INSTALLATION
Install the removed parts in the reverse order of the removal, while paying attention to the following work.

When installing A/T assembly to the engine assembly, attach the fixing bolts in accordance with the follow-
ing standard.
For VQ35DE models
For VK45DE models
*1 : No.2 bolt also secures A/T fluid charging pipe and washer.
*2 : No.4 bolt also secures bracket.
(A) : A/T to engine
SCIA2203E
Distance “A”
VQ35DE models : 25.0 mm (0.98 in) or more
VK45DE models : 22.0 mm (0.87 in) or more
SAT017B
Bolt No. 1 2 3 4
Number of bolts 1 5 2 1
Bolt length
“ ”mm (in) 55 (2.17) 65 (2.56) 35 (1.38) 40 (1.57)
Tightening torque
N·m (kg-m, ft-lb) 75
(7.7, 55) 47
(4.8, 35) 34
(3.5, 25)
SCIA4600E
Bolt No. 1 2*134*2
Number of bolts 4141
Bolt length mm (in) 70 (2.76) 70 (2.76) 65 (2.56) 70 (2.76)
Tightening torque
N·m (kg-m, ft-lb) 11 3
(12, 83) 74.0
(7.5, 55) 11 3
(12,83)
SCIA7756E

ATC-3
C
D E
F
G H
I
K L
M A
B
AT C
Revision: 2006 December 2006 FX35/FX45 COMPONENT INSPECTION ...........................
. . 111
Intake Sensor Circuit ........................................... .. 112
COMPONENT DESCRIPTION ........................ .. 112
DIAGNOSIS PROCEDURE FOR INTAKE SEN-
SOR ................................................................. .. 112
COMPONENT INSPECTION ........................... .. 113
CONTROLLER ...................................................... ..114
Removal and Installation of A/C and AV Switch .. .. 114
REMOVAL ........................................................ .. 114
INSTALLATION ................................................ .. 114
AUTO AMP ............................................................ ..115
Removal and Installation of Unified Meter and A/C
Amp. .................................................................... .. 115
REMOVAL ........................................................ .. 115
INSTALLATION ................................................ .. 115
AMBIENT SENSOR ............................................... ..116
Removal and Installation ..................................... .. 116
REMOVAL ........................................................ .. 116
INSTALLATION ................................................ .. 116
IN-VEHICLE SENSOR ........................................... ..117
Removal and Installation ..................................... .. 117
REMOVAL ........................................................ .. 117
INSTALLATION ................................................ .. 117
SUNLOAD SENSOR ............................................. ..118
Removal and Installation ..................................... .. 118
REMOVAL ........................................................ .. 118
INSTALLATION ................................................ .. 118
INTAKE SENSOR .................................................. ..119
Removal and Installation ..................................... .. 119
REMOVAL ........................................................ .. 119
INSTALLATION ................................................ .. 119
BLOWER UNIT ...................................................... . 120
Removal and Installation ..................................... . 120
REMOVAL ........................................................ . 120
INSTALLATION ................................................ . 120
Disassembly and Assembly ................................ . 121
BLOWER MOTOR ................................................. . 122
Removal and Installation ..................................... . 122
REMOVAL ........................................................ . 122
INSTALLATION ................................................ . 122
INTAKE DOOR MOTOR ........................................ . 123
Removal and Installation ..................................... . 123
REMOVAL ........................................................ . 123
INSTALLATION ................................................ . 123
IN-CABIN MICROFILTER ...................................... . 124
Removal and Installation ..................................... . 124
FUNCTION ....................................................... . 124
REPLACEMENT TIMING ................................. . 124
REPLACEMENT PROCEDURES .................... . 124
HEATER & COOLING UNIT ASSEMBLY ............. . 125
Removal and Installation ..................................... . 125
REMOVAL ........................................................ . 125
INSTALLATION ................................................ . 126
Disassembly and Assembly ................................ . 128
MODE DOOR MOTOR .......................................... . 130
Removal and Installation ..................................... . 130
REMOVAL ........................................................ . 130
INSTALLATION ................................................ . 130 AIR MIX DOOR MOTOR ........................................
.131
Removal and Installation ..................................... .131
REMOVAL ........................................................ .131
INSTALLATION ................................................ .131
HEATER CORE ...................................................... .132
Removal and Installation ..................................... .132
REMOVAL ........................................................ .132
INSTALLATION ................................................ .132
DUCTS AND GRILLES .......................................... .133
Removal and Installation ..................................... .133
REMOVAL ........................................................ .133
INSTALLATION ................................................ .136
REFRIGERANT LINES .......................................... .137
HFC-134a (R-134a) Service Procedure .............. .137
SETTING OF SERVICE TOOLS AND EQUIP-
MENT ............................................................... .137
Components ........................................................ .139
VQ35DE ........................................................... .139
VK45DE ............................................................ .140
Removal and Installation of Compressor ............. .140
REMOVAL ........................................................ .140
INSTALLATION ................................................ .142
Removal and Installation of Compressor Clutch . .142
REMOVAL ........................................................ .142
INSTALLATION ................................................ .144
Removal and Installation of Low-pressure Flexible
Hose .................................................................... .146
REMOVAL ........................................................ .146
INSTALLATION ................................................ .147
Removal and Installation of High-pressure Flexible
Hose .................................................................... .147
REMOVAL ........................................................ .147
INSTALLATION ................................................ .148
Removal and Installation of Low-pressure Pipe 1
(Engine Compartment) ........................................ .148
REMOVAL ........................................................ .148
INSTALLATION ................................................ .149
Removal and Installation of High-pressure Pipe 1
and 2 (Engine Compartment) .............................. .149
REMOVAL ........................................................ .149
INSTALLATION ................................................ .150
Removal and Installation of Low-pressure Pipe 2
and High-pressure Pipe 3 .................................... .150
REMOVAL ........................................................ .150
INSTALLATION ................................................ .152
Removal and Installation of Liquid Tank .............. .152
REMOVAL ........................................................ .152
INSTALLATION ................................................ .153
Removal and Installation of Condenser ............... .153
REMOVAL ........................................................ .153
INSTALLATION ................................................ .154
Removal and Installation of Refrigerant Pressure
Sensor ................................................................. .154
REMOVAL ........................................................ .154
INSTALLATION ................................................ .154
Removal and Installation of Evaporator ............... .154
REMOVAL ........................................................ .154
INSTALLATION ................................................ .155
Removal and Installation of Expansion Valve ...... .155

ATC-4Revision: 2006 December 2006 FX35/FX45 REMOVAL ........................................................
.155
INSTALLATION ................................................. .155
Checking for Refrigerant Leaks ........................... .156
Checking System for Leaks Using the Fluorescent
Leak Detector ...................................................... .156
Dye Injection ........................................................ .156
Electrical Leak Detector ....................................... .157
PRECAUTIONS FOR HANDLING LEAK DETECTOR ......................................................
.157
CHECKING PROCEDURE ............................... .158
SERVICE DATA AND SPECIFICATIONS (SDS) ... .160
Compressor ......................................................... .160
Lubricant .............................................................. .160
Refrigerant ........................................................... .160
Engine Idling Speed ............................................. .160
Belt Tension ......................................................... .160

HEATER & COOLING UNIT ASSEMBLY ATC-125
C
D E
F
G H
I
K L
M A
B
AT C
Revision: 2006 December 2006 FX35/FX45
HEATER & COOLING UNIT ASSEMBLYPFP:27110
Removal and InstallationNJS000EU
REMOVAL
1. Use a refrigerant collecting equipment (for HFC-134a) to discharge the refrigerant.
2. Drain coolant from cooling system. Refer to CO-11, "
Changing Engine Coolant" (VQ35DE) or CO-38,
"Changing Engine Coolant" (VK45DE).
3. Remove cowl top cover. Refer to EI-23, "
COWL TOP" .
4. Remove high-pressure pipe 2 mounting clip.
5. Remove low-pressure flexible hose bracket mounting bolt. Refer to ATC-146, "
Removal and Installation of
Low-pressure Flexible Hose" .
6. Disconnect low-pressure pipe 1 and high-pressure pipe 2 from evaporator.
a. Set a disconnector [high-pressure side (SST: 9253089908), low- pressure side (SST: 9253089916)] on A/C piping.
b. Slide a disconnector toward vehicle front until it clicks.
c. Slide A/C piping toward vehicle front and disconnect it.
CAUTION:
Cap or wrap the joint of the pipe with suitable material such
as vinyl tape to avoid the entry of air.
7. Remove electric throttle control actuator (VQ35DE). Refer to EM-19, "
INTAKE MANIFOLD COLLECTOR" .
8. Disconnect two heater hoses from heater core.
9. Remove instrument panel assembly. Refer to IP-10, "
INSTRUMENT PANEL ASSEMBLY" .
10. Remove blower unit. Refer to ATC-120, "
BLOWER UNIT" .
RJIA2037E
RJIA2041E
RJIA2077E

REFRIGERANT LINES ATC-141
C
D E
F
G H
I
K L
M A
B
AT C
Revision: 2006 December 2006 FX35/FX45
VK45DE
1. Use a refrigerant collecting equipment (for HFC-134a) to discharge the refrigerant.
2. Remove air cleaner case and air duct. Refer to EM-17, "
AIR CLEANER AND AIR DUCT" (VQ35DE) or
EM-177, "
AIR CLEANER AND AIR DUCT" (VK45DE).
3. Remove front engine undercover, using power tools.
4. Remove cooling fan shroud (lower). Refer to CO-41, "
RADIATOR" (VK45DE).
5. Remove mounting nuts from low-pressure flexible hose and high-pressure flexible hose.
CAUTION:
Cap or wrap the joint of the pipe with suitable material such
as vinyl tape to avoid the entry of air.
6. Remove high-pressure flexible hose. Refer to ATC-147,
"Removal and Installation of High-pressure Flexible Hose"
(VK45DE).
7. Disconnect compressor connector.
8. Remove A/C compressor belt. Refer to EM-15, "
DRIVE BELTS" (VQ35DE) or EM-174, "DRIVE BELTS"
(VK45DE).
RJIA2244E
RJIA2059E
RJIA2058E

ATC-148
REFRIGERANT LINES
Revision: 2006 December 2006 FX35/FX45
INSTALLATION
Installation is basically the reverse order of removal.
CAUTION:

Replace O-rings of high-pressure flexible hose with new ones, and then apply compressor oil to it
when installing it.

Female-side piping connection is thin and easy to deform. slowly insert the male-side piping
straight in axial direction.

Insert piping securely until a click is heard.

After piping connection is completed, pull male-side piping by hand to make sure that connection
does not come loose.

When recharging refrigerant, check for leaks.
Removal and Installation of Low-pressure Pipe 1 (Engine Compartment)NJS000F6
REMOVAL
1. Use a refrigerant collecting equipment (for HFC-134a) to discharge the refrigerant.
2. Remove cowl top cover. Refer to EI-23, "
COWL TOP" .
3. Remove low-pressure pipe 1 bracket and low-pressure flexible hose bracket mounting bolts.
4. Disconnect one-touch joints.
a. Set a disconnector (SST: 9253089916) on A/C piping.
b. Slide a disconnector toward vehicle front until it clicks.
c. Slide A/C piping toward vehicle front and disconnect it.
RJIA2067E
High-pressure flexible hose bracket mounting bolt
: 5.5 N·m (0.56 kg-m, 49 in-lb)
RJIA2068E
RJIA2069E

REFRIGERANT LINES ATC-149
C
D E
F
G H
I
K L
M A
B
AT C
Revision: 2006 December 2006 FX35/FX45
5. Remove low-pressure pipe 1. CAUTION:
Cap or wrap the joint of the pipe with suitable material such
as vinyl tape to avoid the entry of air.
INSTALLATION
Installation is basically the reverse order of removal.
CAUTION:

Replace O-rings of low-pressure pipe 1 with new ones, and then apply compressor oil to it when
installing it.

Female-side piping connection is thin and easy to deform. slowly insert the male-side piping
straight in axial direction.

Insert piping securely until a click is heard.

After piping connection is completed, pull male-side piping by hand to make sure that connection
does not come loose.

When recharging refrigerant, check for leaks.
Removal and Installation of High-pressure Pipe 1 and 2 (Engine Compartment)NJS000F7
REMOVAL
1. Remove low-pressure pipe 1. Refer to ATC-148, "Removal and Installation of Low-pressure Pipe 1
(Engine Compartment)" .
2. Remove high-pressure flexible hose and low-pressure flexible hose. Refer to ATC-147, "
Removal and
Installation of High-pressure Flexible Hose" and ATC-146, "Removal and Installation of Low-pressure
Flexible Hose" .
3. Remove high-pressure pipe 1 and 2 from clips.
RJIA2037E
Low-pressure pipe 1 bracket and low-pressure flexible hose bracket mounting bolts
: 5.5 N·m (0.56 kg-m, 49 in-lb)
RJIA2070E