Nissan Pathfinder (2010 year). Instruction — part 647
EVAPORATOR
VTL-23
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1. Remove the rear heater and cooling unit assembly from the vehicle. Refer to
.
2. Remove the rear blower motor.
3. Remove the variable blower control (rear).
4. Remove the rear air mix door motor.
5. Remove the rear duct and blend door assembly. Refer to
34, "Removal and Installation"
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 compressor
oil to the O-rings for installation.
• After charging refrigerant, check for leaks.
WJIA1134E
2010 Pathfinder
VTL-24
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EXPANSION VALVE
EXPANSION VALVE
Removal and Installation for Rear Expansion Valve
INFOID:0000000005259236
REMOVAL
1. Discharge the refrigerant. Refer to
HA-37, "HFC-134a (R-134a) Service Procedure"
.
2. Reposition the third row seat out of the way.
3. Remove the luggage side lower finisher RH access door.
4. 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.
5. Remove the expansion valve.
INSTALLATION
Installation is in the reverse order of removal.
CAUTION:
• Replace the O-rings on the rear expansion valve and the rear high- and low-pressure A/C pipes with
new ones, then apply compressor oil to them for installation.
• After charging refrigerant, check for leaks.
Expansion valve bolts
: Refer to
A/C refrigerant pipe to expansion valve bolt
: Refer to
2010 Pathfinder
HEATER CORE
VTL-25
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HEATER CORE
Component
INFOID:0000000005259237
Front Heater and Cooling Unit Assembly
Rear Heater and Cooling Unit Assembly
LJIA0167E
1.
Front heater core and evaporator pipe
bracket
2.
Front heater core
3.
Front heater and cooling unit assembly
4.
Front heater core cover
LJIA0168E
1.
Rear heater and cooling unit assembly
2.
Rear blower motor
3.
Rear heater core bracket
4.
Rear heater core
2010 Pathfinder
VTL-26
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HEATER CORE
Removal and Installation
INFOID:0000000005259238
FRONT HEATER CORE
Removal
1. Remove the front heater and cooling unit assembly. Refer to
VTL-18, "Removal and Installation"
.
2. Remove the three screws and remove the front heater core cover.
3. Remove the front heater core and evaporator pipe bracket.
4. Remove the front heater core.
NOTE:
If the in-cabin microfilters are contaminated from coolant leaking from the front heater core, replace the in-
cabin microfilters with new ones before installing the new front heater core.
Installation
Installation is in the reverse order of removal.
REAR HEATER CORE
Removal
1. Partially drain the engine cooling system. Refer to
CO-12, "Changing Engine Coolant"
(VK56DE).
2. Remove the rear heater and cooling unit assembly. Refer to
VTL-18, "Removal and Installation"
3. Remove the rear heater core bracket.
4. Remove the heater core.
Installation
Installation is in the reverse order of removal.
2010 Pathfinder
INTAKE DOOR MOTOR
VTL-27
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INTAKE DOOR MOTOR
Removal and Installation
INFOID:0000000005259239
Intake Door Motor - Front Heater and Cooling Unit Assembly
REMOVAL
1. Remove the front heater and cooling unit assembly. Refer to
VTL-18, "Removal and Installation"
.
2. Remove the steering member from the front heater and cooling unit assembly.
3. Disconnect the intake door motor electrical connector.
4. Remove the three screws and remove the intake door motor.
INSTALLATION
Installation is in the reverse order of removal.
LBIA0415E
1.
Front heater and cooling unit assembly
2.
Intake door motor
3.
Air mix door motor (passenger)
4.
Variable blower control (front)
5.
Air mix door motor (driver)
6.
Mode door motor
2010 Pathfinder
VTL-28
< ON-VEHICLE REPAIR >
MODE DOOR MOTOR
MODE DOOR MOTOR
Removal and Installation
INFOID:0000000005259240
Mode Door Motor - Front Heater and Cooling Unit Assembly
REMOVAL
1. Remove the BCM. Refer to
BCS-59, "Removal and Installation"
.
2. Disconnect the mode door motor electrical connector.
3. Remove the three screws and remove the mode door motor.
INSTALLATION
Installation is in the reverse order of removal.
LBIA0415E
1.
Front heater and cooling unit assembly
2.
Intake door motor
3.
Air mix door motor (passenger)
4.
Variable blower control (front)
5.
Air mix door motor (driver)
6.
Mode door motor
2010 Pathfinder
AIR MIX DOOR MOTOR
VTL-29
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AIR MIX DOOR MOTOR
Component
INFOID:0000000005259241
Air Mix Door Motors - ATC - Front Heater and Cooling Unit Assembly
LBIA0415E
1.
Front heater and cooling unit assembly
2.
Intake door motor
3.
Air mix door motor (passenger)
4.
Variable blower control (front)
5.
Air mix door motor (driver)
6.
Mode door motor
2010 Pathfinder
VTL-30
< ON-VEHICLE REPAIR >
AIR MIX DOOR MOTOR
Air Mix Door Motor - MTC - Heater and Cooling Unit Assembly
Removal and Installation
INFOID:0000000005259242
FRONT AIR MIX DOOR MOTOR - DRIVER - ATC
Removal
1. Remove the instrument panel side finisher. Refer to
2. Remove the lower instrument panel RH. Refer to
3. Disconnect the air mix door motor electrical connector.
4. Remove the three screws and remove the air mix door motor.
Installation
Installation is in the reverse order of removal.
FRONT AIR MIX DOOR MOTOR - PASSENGER - ATC
Removal
1. Remove the front heater and cooling unit assembly. Refer to
VTL-18, "Removal and Installation"
.
2. Remove the steering member from the front heater and cooling unit assembly.
3. Disconnect the air mix door motor electrical connector.
4. Remove the three screws and remove the air mix door motor.
Installation
Installation is in the reverse order of removal.
FRONT AIR MIX DOOR MOTOR - MTC
Removal
1. Remove the front heater and cooling unit assembly. Refer to
VTL-18, "Removal and Installation"
.
2. Remove the steering member from the front heater and cooling unit assembly.
3. Disconnect the air mix door motor electrical connector.
WJIA1312E
1.
Heater and cooling unit assembly
2.
Intake door motor
3.
Air mix door motor
4.
Blower motor resistor
5.
Mode door motor
2010 Pathfinder
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