Nissan Pathfinder (2005 year). Instruction — part 64
REFRIGERANT LINES
ATC-159
C
D
E
F
G
H
I
K
L
M
A
B
ATC
2005 Pathfinder
BREAK-IN OPERATION
When replacing compressor clutch assembly, always conduct the break-in operation. This is done by engag-
ing and disengaging the clutch about 30 times. Break-in operation raises the level of transmitted torque.
Removal and Installation for Front High-pressure Flexible A/C Hose
EJS002YB
REMOVAL
1.
Remove the front left wheel and tire assembly. Refer to
.
2.
Remove the front left mud guard.
3.
Remove the front left splash shield.
4.
Discharge the refrigerant. Refer to
ATC-151, "HFC-134a (R-134a) Service Procedure"
.
5.
Remove the front high-pressure flexible A/C hose. Refer to
.
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 in the reverse order of removal.
Refer to
.
CAUTION:
●
Replace the O-ring of the front high-pressure flexible A/C hose with a new one, then apply com-
pressor oil to it for installation.
●
After charging refrigerant, check for leaks.
Removal and Installation for Front High-pressure A/C Pipe
EJS002YC
REMOVAL
1.
Remove the front right wheel and tire assembly. Refer to
.
2.
Remove the front right mud guard.
3.
Remove the front right splash shield.
4.
Discharge the refrigerant. Refer to
ATC-151, "HFC-134a (R-134a) Service Procedure"
.
5.
Remove the front low pressure A/C pipe. Refer to
ATC-160, "Removal and Installation for Front Low-pres-
.
6.
Remove the front high-pressure A/C pipe. Refer to
.
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 in the reverse order of removal.
Refer to
.
CAUTION:
●
Replace the O-ring of the front high-pressure A/C pipe with a new one, then apply compressor oil
to it for installation.
●
After charging refrigerant, check for leaks.
Removal and Installation for Front Low-pressure Flexible A/C Hose
EJS002YA
REMOVAL
1.
Remove the front right wheel and tire assembly. Refer to
.
2.
Remove the front right mud guard.
3.
Remove the front right splash shield.
4.
Discharge the refrigerant. Refer to
ATC-151, "HFC-134a (R-134a) Service Procedure"
.
CAUTION:
Cap or wrap the joint of the pipe with suitable material such as vinyl tape to avoid the entry of air.
5.
Remove the front low-pressure flexible A/C hose. Refer to
.
INSTALLATION
Installation is in the reverse order of removal.
Refer to
.
ATC-160
REFRIGERANT LINES
2005 Pathfinder
CAUTION:
●
Replace the O-ring of the front low-pressure flexible A/C hose with a new one, then apply com-
pressor oil to it for installation.
●
After charging refrigerant, check for leaks.
Removal and Installation for Front Low-pressure A/C Pipe
EJS002YD
REMOVAL
1.
Discharge the refrigerant. Refer to
ATC-151, "HFC-134a (R-134a) Service Procedure"
.
2.
Disconnect the heater pump connector.
3.
Remove the heater pump from the bracket and reposition out of the way. Do not disconnect the heater
hoses from the heater pump.
4.
Remove the front low-pressure A/C pipe. Refer to
.
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 in the reverse order of removal.
Refer to
.
CAUTION:
●
Replace the O-ring of the front low-pressure A/C pipe with a new one, then apply compressor oil to
it for installation.
●
After charging refrigerant, check for leaks.
Removal and Installation for Rear High- and Low-pressure A/C Pipes
EJS003BD
REMOVAL
1.
Discharge the refrigerant. Refer to
ATC-151, "HFC-134a (R-134a) Service Procedure"
.
2.
Remove the rear RH interior trim panel. Refer to
.
3.
Remove the rear high- and low-pressure A/C pipes. Refer to
.
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 in the reverse order of removal.
Refer to
.
CAUTION:
●
Replace the O-ring of the rear high- and low-pressure A/C pipes with a new one, then apply com-
pressor oil to it for installation.
●
After charging refrigerant, check for leaks.
Removal and Installation for Underfloor Rear High- and Low-pressure A/C and
Heater Core Pipes
EJS003BE
REMOVAL
1.
Release the fuel pressure. Refer to
EC-91, "FUEL PRESSURE RELEASE"
.
2.
Drain the engine coolant. Refer to
MA-13, "Changing Engine Coolant"
.
3.
Disconnect the negative battery terminal.
4.
Discharge the refrigerant. Refer to
ATC-151, "HFC-134a (R-134a) Service Procedure"
.
5.
Remove the rear bumper. Refer to
.
6.
Disconnect the fuel filler pipe and vent pipe from the lower fuel filler hose and fuel tank.
7.
Remove the front fender protector. Refer to
EI-21, "Removal and Installation of Front Fender Protector"
.
8.
Disconnect the chassis harness connector.
9.
Remove the front and rear RH wheels and tires. Refer to
WT-5, "WHEEL AND TIRE ASSEMBLY"
.
10. Disconnect the fuel feed hose quick connectors. Disconnect the quick connectors as follows:
●
Hold the sides of the connector, push in the tabs and pull out the tube.
●
If the connector and the tube are stuck together, push and pull several times until they start to move.
Then disconnect them by pulling.
REFRIGERANT LINES
ATC-161
C
D
E
F
G
H
I
K
L
M
A
B
ATC
2005 Pathfinder
CAUTION:
●
The quick connector can be disconnected when the tabs
are completely depressed. Do not twist the quick connec-
tor more than necessary.
●
Do not use any tools to disconnect the quick connector.
●
Keep the resin tube away from heat. Be especially careful
when welding near the tube.
●
Prevent any acid liquids such as battery electrolyte, from
getting on the resin tube.
●
Do not bend or twist the resin tube during connection.
●
Do not remove the remaining retainer on the hard tube (or
the equivalent) except when the resin tube or the retainer
is replaced.
●
When the resin tube or hard tube, or the equivalent, is
replaced, also replace the retainer with a new one (semi-
transparent colored retainer).
●
To keep the quick connector clean and to avoid damage
and contamination from foreign materials, cover the
quick connector with plastic bags or suitable material as
shown.
11. Disconnect the frame mounted brake tubes from the brake system. Refer to
.
12. Remove the upper radiator mounting plates. Refer to
.
13. Disconnect the A/C lines ground strap.
14. Disconnect the exhaust system ground strap. Refer to
.
15. Disconnect each end of the underfloor rear high- and low-pressure A/C and heater core pipes. Refer to
.
CAUTION:
Cap or wrap the joint of the pipes with suitable material such as vinyl tape to avoid the entry of air.
16. Remove the front floor heat shield.
17. Remove the heater pipe heat shield.
18. Disconnect the steering column from the power steering gear. Refer to
.
19. Set four suitable jacks at the body mount points to support the vehicle body when it is separated from the
frame.
20. Remove the body mount bolts. Refer to
.
21. Use the vehicle hoist to lower the frame from the body [approximately 457 mm (18 in)] until there is suffi-
cient clearance for the underfloor rear high- and low-pressure A/C and heater core pipes from the body.
22. Remove the underfloor rear high- and low-pressure A/C and heater core pipes.
PBIC1268E
PBIC0163E
ATC-162
REFRIGERANT LINES
2005 Pathfinder
INSTALLATION
Installation is in the reverse order of removal.
CAUTION:
●
Replace the O-ring of the underfloor rear high- and low-pressure A/C and heater core pipes with a
new one, then apply compressor oil to it for installation.
●
After charging refrigerant, check for leaks.
Removal and Installation for Refrigerant Pressure Sensor
EJS002YE
REMOVAL
1.
Discharge the refrigerant. Refer to
ATC-151, "HFC-134a (R-134a) Service Procedure"
.
2.
Disconnect the refrigerant pressure sensor harness connector
and remove the refrigerant pressure sensor from the condenser.
CAUTION:
Be careful not to damage the condenser fins.
INSTALLATION
Installation is in the reverse order of removal.
Refer to
.
CAUTION:
●
Be careful not to damage the condenser fins.
●
Apply compressor oil to the O-ring of the refrigerant pressure sensor for installation.
●
After charging refrigerant, check for leaks.
Removal and Installation for Condenser
EJS002YF
REMOVAL
1.
Discharge the refrigerant. Refer to
ATC-151, "HFC-134a (R-134a) Service Procedure"
.
2.
Remove the radiator. Refer to
.
CAUTION:
Be careful not to damage the core surface of the condenser and the radiator.
3.
Disconnect the front high-pressure flexible A/C hose and the front high-pressure A/C pipe from the con-
denser.
CAUTION:
Cap or wrap the joint of the pipes with suitable material such as vinyl tape to avoid the entry of air.
4.
Disconnect the refrigerant pressure sensor harness connector.
5.
Remove the refrigerant pressure sensor from the condenser.
6.
Lift the condenser out of the mounting grommets and remove
the condenser.
INSTALLATION
Installation is in the reverse order of removal.
Refer to
.
LJIA0177E
LJIA0177E
REFRIGERANT LINES
ATC-163
C
D
E
F
G
H
I
K
L
M
A
B
ATC
2005 Pathfinder
CAUTION:
●
Replace the O-rings of the front high-pressure A/C pipe and the front high-pressure flexible A/C
hose with new ones, then apply compressor oil to them for installation.
●
After charging refrigerant, check for leaks.
●
Replace the mounting grommets as necessary.
Removal and Installation for Front Evaporator
EJS002YG
Front Heater and Cooling Unit Assembly
LJIA0178E
ATC-164
REFRIGERANT LINES
2005 Pathfinder
REMOVAL
1.
Remove the front heater core. Refer to
.
2.
Separate the heater and cooling unit case.
3.
Remove the front evaporator.
INSTALLATION
Installation is in the reverse order of removal.
CAUTION:
Replace the O-rings on the front A/C low-pressure flexible A/C hose and the front high-pressure A/C
pipe with new ones. Apply compressor oil to the O-rings for installation.
1.
Center ventilator connector duct
2.
Front heater core cover
3.
Intake air case
4.
Front heater core and evaporator
pipes bracket
5.
Front heater core and evaporator
pipes grommet
6.
Front heater core
7.
Upper heater and cooling unit case
8.
Front expansion valve
9.
Front evaporator
10. Lower heater and cooling unit case
11.
Variable blower control
12. Blower motor
REFRIGERANT LINES
ATC-165
C
D
E
F
G
H
I
K
L
M
A
B
ATC
2005 Pathfinder
Removal and Installation for Rear Evaporator
EJS002YH
Rear Heater and Cooling Unit Assembly
REMOVAL
1.
Remove the rear heater and cooling unit assembly from the vehicle. Refer to
.
2.
Remove the rear blower motor.
3.
Remove the rear blower speed resistor.
LJIA0135E
1.
Front cover
2.
Rear evaporator and heater core case
3.
Rear evaporator
4.
Side cover
5.
Rear heater core
6.
Rear blower motor
7.
Blower motor case
8.
Rear blower motor resistor
ATC-166
REFRIGERANT LINES
2005 Pathfinder
4.
Remove the rear air mix door motor.
5.
Remove the rear duct and blend door assembly. Refer to
.
6.
Disassemble the rear heater and cooling unit assembly to
remove the rear evaporator.
INSTALLATION
Installation is in the reverse order of removal.
CAUTION:
●
Replace the O-rings on the rear high- and low-pressure A/C pipes with new ones. Apply compres-
sor oil to the O-rings for installation.
●
After charging refrigerant, check for leaks.
Removal and Installation for Front Expansion Valve
EJS002YI
REMOVAL
1.
Discharge the refrigerant. Refer to
ATC-151, "HFC-134a (R-134a) Service Procedure"
.
2.
Remove the front heater and cooling unit assembly. Refer to
ATC-134, "FRONT HEATER AND COOLING
.
3.
Remove the front heater core and evaporator pipes grommet.
4.
Remove the front expansion valve.
INSTALLATION
Installation is in the reverse order of removal.
CAUTION:
●
Replace the O-rings on then front expansion valve and the A/C refrigerant pipes with new ones,
then apply compressor oil to them for installation.
●
After charging refrigerant, check for leaks.
Removal and Installation for Rear Expansion Valve
EJS002YJ
REMOVAL
1.
Discharge the refrigerant. Refer to
ATC-151, "HFC-134a (R-134a) Service Procedure"
.
2.
Remove the rear RH interior side trim panel access door.
3.
Disconnect the rear high- and low-pressure A/C pipes from the rear expansion valve.
CAUTION:
Cap or wrap the A/C refrigerant pipe ends with a suitable material such as vinyl tape to avoid the
entry of air and contaminants.
4.
Remove the expansion valve.
INSTALLATION
Installation is in the reverse order of removal.
WJIA1134E
Expansion valve bolts
: Refer to
.
A/C refrigerant pipe to expansion valve bolt
: Refer to
.
Expansion valve bolts
: Refer to
.
A/C refrigerant pipe to expansion valve bolt
: Refer to
.
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