low oil pressure INFINITI FX35 2004 Owner's Guide

ATC-142
REFRIGERANT LINES
Revision: 2004 November 2004 FX35/FX45
10. Remove mounting bolts from compressor, using power tools.
11. Remove compressor from downward (VK45DE).
12. Remove compressor from downward (VQ35DE).
INSTALLATION
Installation is basically the reverse order of removal.
CAUTION:

Replace the O-ring of the low-pressure flexible hose, high-pressure pipe and high-pressure flexi-
ble hose with a new one, then apply compressor oil to it when installing it.

When recharging refrigerant, check for leaks.
RJIA2060E
RJIA2061E

ATC-148
REFRIGERANT LINES
Revision: 2004 November 2004 FX35/FX45
INSTALLATION
Installation is basically the reverse order of removal.
CAUTION:

Replace O-rings for A/C piping with new one, then apply compressor oil to it when installing it.

Connection point for female-side piping is thin. So, when inserting male-side piping, take care not
to deform female-side piping. Slowly insert in axial direction.

Insert one-touch joint connection point securely until it clicks.

After piping has been connected, pull male-side piping by hand to make sure piping does not
come off.

When recharging refrigerant, check for leaks.
Removal and Installation of High-pressure Flexible HoseAJS0015U
REMOVAL
1. Use a refrigerant collecting equipment (for HFC-134a) to discharge the refrigerant.
2. Remove the air cleaner and air duct. Refer to EM-17, "
AIR CLEANER AND AIR DUCT" (VQ35DE) or EM-
172, "AIR CLEANER AND AIR DUCT" (VK45DE).
3. Remove mounting bolt for high-pressure flexible hose bracket.
4. Disconnect one-touch joint between high-pressure flexible hose
and condenser.
a. Set a disconnector (92530-89912) on A/C piping.
b. Slide a disconnector upward until it clicks.
c. Slide A/C piping upward 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.
5. Remove mounting nut for high-pressure flexible hose (compres-
sor side), and then remove 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. Bolt mounting the low-pressure flexible hose bracket
Tightening torque : 5.5 N·m (0.56 kg-m, 49 in-lb)
RJIA2065E
RJIA2066E
RJIA2067E

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ATC-149
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Revision: 2004 November 2004 FX35/FX45
INSTALLATION
Installation is basically the reverse order of removal.
CAUTION:

Replace the O-ring of the high-pressure flexible hose with a new one, then apply compressor oil to
it when installing it.

Connection point for female-side piping is thin. So, when inserting male-side piping, take care not
to deform female-side piping. Slowly insert in axial direction.

Insert one-touch joint connection point securely until it clicks.

After piping has been connected, pull male-side piping by hand to make sure piping does not
come off.

When recharging refrigerant, check for leaks.
Removal and Installation of Low-pressure Pipe 1 (Engine Compartment)AJS0015V
REMOVAL
1. Use a refrigerant collecting equipment (for HFC-134a) to discharge the refrigerant.
2. Remove cowl top cover. Refer to EI-24, "
COWL TOP" .
3. Remove mounting bolt for low-pressure pipe 1 bracket and low-
pressure flexible hose bracket.
4. Disconnect one-touch joints.
a. Set a disconnector (92530-89916) 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.
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.Bolt mounting the high-pressure flexible hose bracket
Tightening torque : 5.5 N·m (0.56 kg-m, 49 in-lb)
RJIA2068E
RJIA2069E
RJIA2037E

ATC-150
REFRIGERANT LINES
Revision: 2004 November 2004 FX35/FX45
INSTALLATION
Installation is basically the reverse order of removal.
CAUTION:

Replace the O-ring of the low-pressure pipe 1 with a new one, then apply compressor oil to it when
installing it.

Connection point for female-side piping is thin. So, when inserting male-side piping, take care not
to deform female-side piping. Slowly insert in axial direction.

Insert one-touch joint connection point securely until it clicks.

After piping has been connected, pull male-side piping by hand to make sure piping does not
come off.

When recharging refrigerant, check for leaks.
Removal and Installation of High-pressure Pipe 1 and 2 (Engine Compartment)AJS001BH
REMOVAL
1. Use a refrigerant collecting equipment (for HFC-134a) to discharge the refrigerant.
2. Remove low-pressure pipe 1. Refer to ATC-149, "
Removal and Installation of Low-pressure Pipe 1
(Engine Compartment)" .
3. Remove high-pressure flexible hose and low-pressure flexible hose. Refer to ATC-148, "
Removal and
Installation of High-pressure Flexible Hose" and ATC-147, "Removal and Installation of Low-pressure
Flexible Hose" .
4. Remove high-pressure pipe 1 and 2 from clips.
5. Disconnect one-touch joint between condenser and high-pres-
sure pipe 1.
a. Set a disconnector (92530-89908) on A/C piping.
b. Slide a disconnector upward until it clicks.
c. Slide A/C piping upward 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. Bolts mounting the low-pressure pipe 1 bracket and low-pressure flexible hose bracket
Tightening torque : 5.5 N·m (0.56 kg-m, 49 in-lb)
RJIA2070E
RJIA2071E

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ATC-151
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Revision: 2004 November 2004 FX35/FX45
6. Disconnect one-touch joint between high-pressure pipe 1 and 2.
a. Set a disconnector (92530-89908) on A/C piping.
b. Slide a disconnector toward vehicle rear until it clicks.
c. Slide A/C piping toward vehicle rear 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 high-pressure pipe 1.
8. Disconnect one-touch joint between high-pressure pipe 2 and 3.
a. Set a disconnector (92530-89908) 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.
9. Remove the high-pressure pipe 2.
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 the O-ring of the high-pressure pipe with a new one, then apply compressor oil to it when
installing it.

Connection point for female-side piping is thin. So, when inserting male-side piping, take care not
to deform female-side piping. Slowly insert in axial direction.

Insert one-touch joint connection point securely until it clicks.

After piping has been connected, pull male-side piping by hand to make sure piping does not
come off.

When recharging refrigerant, check for leaks.
Removal and Installation of Low-pressure Pipe 2 and High-pressure Pipe 3AJS001BI
REMOVAL
1. Set the temperature at 18°C (60°F), and then disconnect the battery negative cable.
2. Use a refrigerant collecting equipment (for HFC-134a) to discharge the refrigerant.
3. Remove cowl top cover. Refer to EI-24, "
COWL TOP" .
4. Remove mounting bolts for low-pressure pipe 1 bracket and low-
pressure flexible hose bracket.
RJIA2072E
RJIA2073E
RJIA2068E

ATC-152
REFRIGERANT LINES
Revision: 2004 November 2004 FX35/FX45
5. Remove high-pressure pipe 1 from vehicle clips.
6. Disconnect one-touch joints.
a. Set a disconnector (High-pressure side: 92530-89908, Low-
pressure side: 92530-89916) 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 blower unit. Refer to ATC-121, "
BLOWER UNIT" .
8. Remove air mix door motor (passenger side), mode door motor
and evaporator cover.
9. Remove mounting bolt, and then remove low-pressure pipe 2
and high-pressure pipe 3.
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 for A/C piping with new ones, then apply compressor oil to it when installing it.

Connection point for female-side piping is thin. So, when inserting male-side piping, take care not
to deform female-side piping. Slowly insert in axial direction.

Insert one-touch joint connection point securely until it clicks.

After piping has been connected, pull male-side piping by hand to make sure piping does not
come off.

When recharging refrigerant, check for leaks.
RJIA2070E
RJIA2037E
RJIA0940E
RJIA2038E

REFRIGERANT LINES
ATC-153
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Revision: 2004 November 2004 FX35/FX45
Removal and Installation of Liquid TankAJS0015Y
REMOVAL
1. Use a refrigerant collecting equipment (for HFC-134a) to discharge the refrigerant.
2. Remove front grille. Refer to EI-23, "
FRONT GRILLE" .
3. Clean liquid tank and its surrounding area, and remove dirt and rust from tank.
CAUTION:
Be sure to clean carefully.
4. Remove mounting bolts for liquid tank and power steering oil cooler.
5. Lift liquid tank upwards. Remove bracket from protruding part of
condenser.
6. Slide liquid tank upward, and then remove liquid tank.
INSTALLATION
Install liquid tank, and then install liquid tank bracket on condenser.
CAUTION:

Make sure liquid tank bracket is securely installed at protru-
sion of condenser. (Make sure liquid tank bracket does not
move to a position below center of liquid tank.)

Replace O-rings for A/C piping with new ones, then apply
compressor oil to it when installing it.

When recharging refrigerant, check for leaks.Bolts mounting low-pressure pipe 1 bracket and low-pressure flexible hose bracket
Tightening torque : 5.5 N·m (0.56 kg-m, 49 in-lb)
RJIA2074E
RJIA0672E
RJIA0673E

ATC-154
REFRIGERANT LINES
Revision: 2004 November 2004 FX35/FX45
Removal and Installation of CondenserAJS0015Z
REMOVAL
1. Use a refrigerant collecting equipment (for HFC-134a) to discharge the refrigerant.
2. Remove the air cleaner and air duct. Refer to EM-17, "
AIR CLEANER AND AIR DUCT" (VQ35DE) or EM-
172, "AIR CLEANER AND AIR DUCT" (VK45DE).
3. Remove engine undercover, using power tools.
4. Drain engine coolant (VK45DE). Refer to CO-36, "
Changing Engine Coolant" .
5. Remove cooling fan shroud after removing radiator upper hose (VK45DE). Refer to CO-39, "
RADIATOR" .
6. Remove mounting bolt for high-pressure flexible hose bracket.
7. Disconnect high-pressure flexible hose and high-pressure pipe
1 from condenser.
a. Set a disconnector (Condenser outlet: 92530-89908, Condenser
inlet: 92530-89912) on A/C piping.
b. Slide a disconnector upward until it clicks.
c. Slide A/C piping upward 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.
8. Remove mounting bolts for condenser.
9. Remove radiator upper mount, move radiator and condenser to the engine side.
10. Remove condenser.
CAUTION:
Be careful not to damage the core surface of the condenser and the radiator.
INSTALLATION
Installation is basically the reverse order of removal.
CAUTION:

Replace O-rings for A/C piping with new ones, then apply compressor oil to it when installing it.

Connection point for female-side piping is thin. So, when inserting male-side piping, take care not
to deform female-side piping. Slowly insert in axial direction.

Insert one-touch joint connection point securely until it clicks.
RJIA2065E
RJIA2066E
RJIA2075E

REFRIGERANT LINES
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Revision: 2004 November 2004 FX35/FX45

After piping has been connected, pull male-side piping by hand to make sure piping does not
come off.

When recharging refrigerant, check for leaks.
Removal and Installation of Refrigerant Pressure SensorAJS00160
REMOVAL
1. Remove condenser. Refer to ATC-154, "Removal and Installa-
tion of Condenser" .
2. Remove refrigerant pressure sensor from condenser.
CAUTION:
When working, be careful not to damage the condenser
fins.
INSTALLATION
Installation is basically the reverse order of removal.
CAUTION:
Apply compressor oil to the O-ring of the refrigerant pressure sensor when installing it.
Removal and Installation of EvaporatorAJS001BJ
REMOVAL
1. Set the temperature at 18°C (60°F), and then disconnect the battery negative cable.
2. Use a refrigerant collecting equipment (for HFC-134a) to discharge the refrigerant.
3. Remove low-pressure pipe 2 and high-pressure pipe 3. Refer to ATC-151, "
Removal and Installation of
Low-pressure Pipe 2 and High-pressure Pipe 3" .
CAUTION:
Cap or wrap the joint of the pipe with suitable material such as vinyl tape to avoid the entry of air.
4. Slide evaporator, and then remove it from heater & cooling unit.
5. Remove intake sensor from evaporator, and then remove evap-
orator.
INSTALLATION
Installation is basically the reverse order of removal.
CAUTION:

Replace O-rings for A/C piping with new ones, then apply compressor oil to it when installing it.

Connection point for female-side piping is thin. So, when inserting male-side piping, take care not
to deform female-side piping. Slowly insert in axial direction.

Insert one-touch joint connection point securely until it clicks.

After piping has been connected, pull male-side piping by hand to make sure piping does not
come off.

The O-rings are different from low-pressure pipe 1 (high-pressure pipe 2) and low-pressure pipe 2
(high-pressure pipe 3).

Mark the mounting position of the intake sensor bracket. Bolt mounting the high-pressure flexible hose bracket
Tightening torque : 5.5 N·m (0.56 kg-m, 49 in-lb)
RJIA2076E
RJIA0928E

ATC-156
REFRIGERANT LINES
Revision: 2004 November 2004 FX35/FX45

When recharging refrigerant, check for leaks.
Removal and Installation of Expansion ValveAJS001BK
REMOVAL
1. Set the temperature at 18°C (60°F), and then disconnect the battery negative cable.
2. Use a refrigerant collecting equipment (for HFC-134a) to discharge the refrigerant.
3. Remove evaporator. Refer to ATC-155, "
Removal and Installation of Evaporator" .
4. Remove mounting bolts for expansion valve, and then remove
expansion valve.
INSTALLATION
Installation is basically the reverse order of removal.
CAUTION:

Replace O-rings with new ones, then apply compressor oil to them when installing them.

The O-rings are different from low-pressure pipe 1 (high-pressure pipe 2) and low-pressure pipe 2
(high-pressure pipe 3).

When recharging refrigerant, check for leaks.Bolt mounting low-pressure pipe 1 bracket
Tightening torque : 5.5 N·m (0.56 kg-m, 49 in-lb)
RJIA1864E
Bolts mounting expansion valve
Tightening torque : 3.9N·m (0.4 kg-m, 35 in-lb)