Nissan Pathfinder (2007 year). Manual — part 330
IN-CABIN MICROFILTER
MTC-87
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MTC
2007 Pathfinder
5.
Install the in-cabin microfilter cover.
6.
Close the lower glove box completely.
LJIA0134E
MTC-88
HEATER & COOLING UNIT ASSEMBLY
2007 Pathfinder
HEATER & COOLING UNIT ASSEMBLY
PFP:27110
Components
EJS004S1
Heater and Cooling Unit Assembly
Removal and Installation
EJS004S2
REMOVAL
1.
Discharge the refrigerant from the A/C system. Refer to
ATC-158, "Discharging Refrigerant"
2.
Drain the coolant from the engine cooling system. Refer to
CO-10, "Changing Engine Coolant"
.
3.
Disconnect the battery negative and positive terminals.
WJIA1416E
1.
High-pressure A/C pipe
2.
Low-pressure A/C pipe
3.
Expansion valve
4.
Heater core and evaporator pipes
grommet
5.
A/C drain hose grommet
6.
A/C drain hose
7.
Heater core pipe mounts
8.
Heater core pipes
9.
Heater and cooling unit assembly
HEATER & COOLING UNIT ASSEMBLY
MTC-89
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MTC
2007 Pathfinder
4.
Remove the RH heater core pipes nut.
5.
Disconnect the heater core hoses from the heater core.
6.
Disconnect the high- and low-pressure A/C pipes from the
expansion valve.
7.
Move the two front seats to the rearmost position on the seat
track.
8.
Remove the instrument panel and console panel. Refer to
9.
Remove the two front floor ducts.
10. Remove the steering column. Refer to
11. Disconnect the instrument panel wire harness at the RH and LH in-line connector brackets, and the fuse
block (SMJ) electrical connectors. Refer to
12. Remove the covers then remove the three steering member bolts from each side to disconnect the steer-
ing member from the vehicle body.
13. Remove the heater and cooling unit assembly with it attached to the steering member, from the vehicle.
CAUTION:
●
Use care not to damage the seats and interior trim panels when removing the heater and cooling
unit assembly with it attached to the steering member.
●
Use suitable plugs on the heater core pipes to prevent coolant leakage.
14. Remove the heater and cooling unit assembly from the steering member.
INSTALLATION
Installation is in the reverse order of removal.
CAUTION:
●
Replace the O-ring of the low-pressure A/C pipe and high-pressure A/C pipe with a new one, and
apply compressor oil to the O-ring for installation. Refer to
.
●
After charging the refrigerant, check for leaks. Refer to
ATC-174, "Checking for Refrigerant Leaks"
.
NOTE:
●
Fill the engine cooling system with the specified coolant mixture. Refer to
.
●
Recharge the A/C system. Refer to
ATC-158, "Evacuating System and Charging Refrigerant"
WJIA1292E
MTC-90
HEATER CORE
2007 Pathfinder
HEATER CORE
PFP:27140
Components
EJS004S3
Heater and Cooling Unit Assembly
Removal and Installation
EJS004S4
REMOVAL
1.
Remove the heater and cooling unit assembly. Refer to
MTC-88, "HEATER & COOLING UNIT ASSEM-
2.
Remove the three screws and remove the heater core cover.
3.
Remove the heater core and evaporator pipe bracket.
4.
Remove the heater core.
NOTE:
If the in-cabin microfilters are contaminated from coolant leaking
from the heater core, replace the in-cabin microfilters with new
ones before installing the new heater core.
INSTALLATION
Installation is in the reverse order of removal.
LJIA0167E
1.
Heater core and evaporator pipe bracket 2.
Heater core
3.
Heater and cooling unit assembly
4.
Heater core cover
LJIA0134E
INTAKE DOOR MOTOR
MTC-91
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MTC
2007 Pathfinder
INTAKE DOOR MOTOR
PFP:27730
Removal and Installation
EJS004S5
Intake Door Motor - Heater and Cooling Unit Assembly
REMOVAL
1.
Remove the heater and cooling unit assembly. Refer to
MTC-88, "HEATER & COOLING UNIT ASSEM-
.
2.
Remove the steering member from the 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.
WJIA1312E
1.
Heater and cooling unit assembly
2.
Intake door motor
3.
Air mix door motor
4.
Blower motor resistor
5.
Mode door motor
MTC-92
MODE DOOR MOTOR
2007 Pathfinder
MODE DOOR MOTOR
PFP:27731
Removal and Installation
EJS004S6
Mode Door Motor - Heater and Cooling Unit Assembly
REMOVAL
1.
Remove the instrument panel side finisher. Refer to
IP-10, "INSTRUMENT PANEL ASSEMBLY"
2.
Remove the lower instrument cover. Refer to
IP-10, "INSTRUMENT PANEL ASSEMBLY"
3.
Disconnect the mode door motor electrical connector.
4.
Remove the three screws and remove the mode door motor.
INSTALLATION
Installation is in the reverse order of removal.
WJIA1312E
1.
Heater and cooling unit assembly
2.
Intake door motor
3.
Air mix door motor
4.
Blower motor resistor
5.
Mode door motor
AIR MIX DOOR MOTOR
MTC-93
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MTC
2007 Pathfinder
AIR MIX DOOR MOTOR
PFP:27732
Components
EJS004S7
Air Mix Door Motor - Heater and Cooling Unit Assembly
Removal and Installation
EJS004S8
REMOVAL
1.
Remove the heater and cooling unit assembly. Refer to
MTC-88, "HEATER & COOLING UNIT ASSEM-
.
2.
Remove the steering member from the 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.
WJIA1312E
1.
Heater and cooling unit assembly
2.
Intake door motor
3.
Air mix door motor
4.
Blower motor resistor
5.
Mode door motor
MTC-94
FRONT BLOWER MOTOR RESISTOR
2007 Pathfinder
FRONT BLOWER MOTOR RESISTOR
PFP:27077
Removal and Installation
EJS004S9
Blower Motor Resistor - Heater and Cooling Unit Assembly
REMOVAL
1.
Disconnect the blower motor resistor electrical connector.
2.
Remove the two screws and remove the blower motor resistor.
INSTALLATION
Installation is in the reverse order of removal.
WJIA1312E
1.
Heater and cooling unit assembly
2.
Intake door motor
3.
Air mix door motor
4.
Blower motor resistor
5.
Mode door motor
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