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

ST-17, "Removal and Installation"

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

August 2012

2012 Pathfinder

HA-48

< REMOVAL AND INSTALLATION >

HIGH-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"

August 2012

2012 Pathfinder

LOW-PRESSURE FLEXIBLE HOSE

HA-49

< REMOVAL AND INSTALLATION >

LOW-PRESSURE FLEXIBLE HOSE

Removal and Installation for Front Low-Pressure Flexible A/C Hose

INFOID:0000000007356323

REMOVAL

1. Remove the front left wheel and tire assembly. Refer to

WT-50, "Adjustment"

2. Remove the front left fender protector. Refer to

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

tor"

3. Discharge the refrigerant. Refer to

HA-36, "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.

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

HA-34, "Component"

INSTALLATION

Installation is in the reverse order of removal.

Refer to

HA-34, "Component"

CAUTION:

• Do not reuse O-rings.

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

• After charging refrigerant, check for leaks.

August 2012

2012 Pathfinder

HA-50

< REMOVAL AND INSTALLATION >

LOW-PRESSURE PIPE

LOW-PRESSURE PIPE

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

INFOID:0000000007356324

REMOVAL

1. Discharge the refrigerant. Refer to

HA-36, "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

HA-34, "Component"

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.

Refer to

HA-34, "Component"

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

INFOID:0000000007356325

REMOVAL

1. Discharge the refrigerant. Refer to

HA-36, "HFC-134a (R-134a) Service Procedure"

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

HA-34, "Component"

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

HA-34, "Component"

CAUTION:

• Do not reuse O-rings.

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

• After charging refrigerant, check for leaks.

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

INFOID:0000000007356326

REMOVAL

1. Release the fuel pressure. Refer to

EC-487, "Fuel Pressure Check"

(VQ40DE),

EC-952, "Fuel Pressure

Check"

(VK56DE).

2. Drain the engine coolant. Refer to

CO-12, "Changing Engine Coolant"

(VQ40DE),

CO-42, "Changing

Engine Coolant"

(VK56DE).

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

HA-36, "HFC-134a (R-134a) Service Procedure"

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

WT-50, "Adjustment"

6. Remove the rear bumper. Refer to

EXT-18, "Removal and Installation"

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.

August 2012

2012 Pathfinder

LOW-PRESSURE PIPE

HA-51

< 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-17, "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

HA-34, "Component"

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

ST-17, "Removal and Installation"

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

August 2012

2012 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"

August 2012

2012 Pathfinder

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