Nissan Pathfinder (2012 year). Instruction — part 408
HIGH-PRESSURE FLEXIBLE HOSE
HA-45
< REMOVAL AND INSTALLATION >
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HIGH-PRESSURE FLEXIBLE HOSE
Removal and Installation for Front High-pressure Flexible A/C Hose
INFOID:0000000007356319
REMOVAL
1. Remove the front left wheel and tire assembly. Refer to
2. Remove the front left fender protector. Refer to
EXT-25, "Removal and Installation of Front Fender Protec-
3. Discharge the refrigerant. Refer to
HA-36, "HFC-134a (R-134a) Service Procedure"
.
4. 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.
CAUTION:
• Do not reuse O-rings.
• Apply A/C oil to the O-ring of the front high-pressure flexible A/C hose for installation.
• After charging refrigerant, check for leaks.
August 2012
2012 Pathfinder
HA-46
< REMOVAL AND INSTALLATION >
HIGH-PRESSURE PIPE
HIGH-PRESSURE PIPE
Removal and Installation for Front High-pressure A/C Pipe
INFOID:0000000007356320
REMOVAL
1. Remove the front right wheel and tire assembly. Refer to
2. Remove the front right fender protector. Refer to
EXT-25, "Removal and Installation of Front Fender Pro-
3. Discharge the refrigerant. Refer to
HA-36, "HFC-134a (R-134a) Service Procedure"
.
4. Remove the front low pressure A/C pipe. Refer to
HA-50, "Removal and Installation for Front Low-Pres-
.
5. 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.
CAUTION:
• Do not reuse O-rings.
• Apply A/C oil to the O-ring of the front high-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:0000000007356321
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
.
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.
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:0000000007356322
REMOVAL
1. Release the fuel pressure. Refer to
(VK56DE).
2. Drain the engine coolant. Refer to
CO-12, "Changing Engine Coolant"
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
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.
10. Disconnect the fuel feed hose quick connectors. Disconnect the quick connectors as follows:
August 2012
2012 Pathfinder
HIGH-PRESSURE PIPE
HA-47
< REMOVAL AND INSTALLATION >
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• 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
lation of Front Brake Piping and Brake Hose"
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
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
.
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
.
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 >
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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
2. Remove the front left fender protector. Refer to
EXT-25, "Removal and Installation of Front Fender Protec-
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
.
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 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
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
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
.
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.
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
(VK56DE).
2. Drain the engine coolant. Refer to
CO-12, "Changing Engine Coolant"
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
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 >
C
D
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F
G
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K
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HA
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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
lation of Front Brake Piping and Brake Hose"
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
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
.
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
.
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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