Nissan Pathfinder (2011 year). Manual - part 441

CAUTION:

Cap or wrap the joint of the pipe with suitable material such as vinyl tape to avoid the entry of air.

4. Remove the front low-pressure flexible A/C hose. Refer to

INSTALLATION

Installation is in the reverse order of removal.

CAUTION:

• Do not reuse O-rings.

• Apply A/C oil to the O-ring of the front low-pressure A/C hose for installation.

• After charging refrigerant, check for leaks.

2011 Pathfinder

HA-50

< REMOVAL AND INSTALLATION >

LOW-PRESSURE PIPE

LOW-PRESSURE PIPE

Removal and Installation for Front Low-Pressure A/C Pipe

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REMOVAL

1. Discharge the refrigerant. Refer to

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.

5. Disconnect the front low-pressure flexible A/C hose from the front low presure A/C pipe.
6. Disconnect the front low presure A/C pipe from the expansion valve.
7. Disconnect the rear low presure A/C pipe from the front low-pressure A/C pipe.

INSTALLATION

Installation is in the reverse order of removal.

CAUTION:

• Do not reuse O-rings.

• Apply A/C oil to the O-ring of the front low-pressure A/C pipe for installation.

• After charging refrigerant, check for leaks.

Removal and Installation for Rear High- and Low-Pressure A/C Pipes

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REMOVAL

1. Discharge the refrigerant. Refer to

2. Remove the luggage side lower finisher RH. Refer to

INT-24, "Component"

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.

EC-484, "Fuel Pressure Check"

CAUTION:

• Do not reuse O-rings.

• Apply A/C oil to the O-ring of rear high-and low-pressure A/C pipe for installation.

• After charging refrigerant, check for leaks.

Removal and Installation for Underfloor Rear High- and Low-Pressure A/C and Heater
Core Pipes

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REMOVAL

1. Release the fuel pressure. Refer to

(VQ40DE),

EC-938, "Fuel Pressure

Check"

(VK56DE).

2. Drain the engine coolant. Refer to

CO-13, "Changing Engine Coolant"

(VQ40DE),

CO-44, "Changing

Engine Coolant"

(VK56DE).

3. Disconnect the negative battery terminal.
4. Discharge the refrigerant. Refer to

EXT-18, "Removal and Installation"

5. Remove the front and rear RH wheels and tires. Refer to

WT-50, "Adjustment"

6. Remove the rear bumper. Refer to

7. Disconnect the fuel filler pipe and vent pipe from the lower fuel filler hose and fuel tank.
8. Remove the front fender protector. Refer to

EXT-25, "Removal and Installation of Front Fender Protector"

9. Disconnect the chassis harness connector.

2011 Pathfinder

LOW-PRESSURE PIPE

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< REMOVAL AND INSTALLATION >

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.

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

BR-28, "Removal and Instal-

lation of Front Brake Piping and Brake Hose"

12. Remove the upper radiator mounting plates. Refer to

CO-18, "Exploded View"

13. Disconnect the A/C lines ground strap.
14. Disconnect the exhaust system ground strap. Refer to

EX-7, "Removal and Installation"

15. Disconnect each end of the underfloor rear high- and low-pressure A/C and heater core pipes. Refer to

ST-19, "Removal and Installation"

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

BRM-10, "Body Mounting"

PBIC1268E

PBIC0163E

2011 Pathfinder

HA-52

< REMOVAL AND INSTALLATION >

LOW-PRESSURE PIPE

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.

INSTALLATION

Installation is in the reverse order of removal.

CAUTION:

• Do not reuse O-rings.

• Apply A/C oil to the O-ring of the underfloor rear high-and low-pressure A/C and heater core pipes

for installation.

• After charging refrigerant, check for leaks.

• Bleed the brake system. Refer to

BR-20, "Bleeding Brake System"

2011 Pathfinder

CONDENSER

HA-53

< REMOVAL AND INSTALLATION >

CONDENSER

Removal and Installation for Condenser

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REMOVAL

1. Discharge the refrigerant. Refer to

CO-49, "Removal and Installation"

2. Remove the radiator. Refer to

(VK56DE),

CO-18, "Removal and Instal-

lation"

(VQ40DE).

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.

7. Remove the liquid tank.

INSTALLATION

Installation is in the reverse order of removal.

CAUTION:

• Do not reuse O-rings.

• Apply A/C oil to the O-rings of the front high-pressure A/C pipe, refrigerant pressure sensor, and

front high-pressure flexible A/C hose for installation.

• After charging refrigerant, check for leaks.

• Replace the mounting grommets as necessary.

LJIA0177E

2011 Pathfinder

HA-54

< REMOVAL AND INSTALLATION >

REFRIGERANT PRESSURE SENSOR

REFRIGERANT PRESSURE SENSOR

Removal and Installation for Refrigerant Pressure Sensor

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REMOVAL

1. Discharge the refrigerant. Refer to

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.

CAUTION:

• Be careful not to damage the condenser fins.

• Do not reuse O-rings.

• Apply A/C oil to the O-ring of the refrigerant pressure sensor for installation.

• After charging refrigerant, check for leaks.

LJIA0177E

2011 Pathfinder

EXPANSION VALVE

HA-55

< REMOVAL AND INSTALLATION >

EXPANSION VALVE

Removal and Installation for Front Expansion Valve

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REMOVAL

1. Discharge the refrigerant. Refer to