Nissan Pathfinder (2007 year). Instruction — part 333
REFRIGERANT LINES
MTC-111
C
D
E
F
G
H
I
K
L
M
A
B
MTC
2007 Pathfinder
4.
Perform a system performance check and then verify the leak repair using a electronic refrigerant leak
detector (J-41995).
NOTE:
●
Other gases in the work area or substances on the A/C components, for example, anti-freeze, wind-
shield washer fluid, solvents and oils, may falsely trigger the leak detector. Make sure the surfaces to
be checked are clean.
●
Clean with a dry cloth or blow off with shop air.
●
Do not allow the sensor tip of the electronic refrigerant leak detector (J-41995) to contact with any sub-
stance. This can also cause false readings and may damage the detector.
Dye Injection
EJS004SQ
NOTE:
This procedure is only necessary when recharging the system or when the compressor has seized and must
be replaced.
1.
Check the A/C system static (at rest) pressure. Pressure must be at least 345 kPa (3.52 kg/cm
2
, 50 psi).
2.
Pour one bottle 7.4 cc (1/4 ounce) of the HFC-134a (R-134a) fluorescent leak detection dye (J-41447) into
the HFC-134a (R-134a) refrigerant dye injector (J-41459).
CAUTION:
If repairing the A/C system or replacing a component, pour the HFC-134a (R-134a) fluorescent leak
detection dye (J-41447) directly into the open system connection and proceed with the service
procedures.
3.
Connect the refrigerant dye injector (J-41459) to the low-pressure service valve.
4.
Start the engine and switch the A/C system ON.
5.
When the A/C system is operating (compressor running), inject one bottle 7.4 cc (1/4 ounce) of HFC-134a
(R-134a) fluorescent leak detection dye (J-41447) through the low-pressure service valve using HFC-
134a (R-134a) refrigerant dye injector (J-41459). Refer to the manufacturer's operating instructions.
6.
With the engine still running, disconnect the HFC-134a (R-134a) refrigerant dye injector (J-41459) from
the low-pressure service valve.
7.
Operate the A/C system for a minimum of 20 minutes to mix the HFC-134a (R-134a) fluorescent leak
detection dye (J-41447) with the A/C system oil. Depending on the leak size, operating conditions and
location of the leak, it may take from minutes to days for the HFC-134a (R-134a) fluorescent leak detec-
tion dye to penetrate an A/C system leak and become visible.
Electronic Refrigerant Leak Detector
EJS004SR
PRECAUTIONS FOR HANDLING LEAK DETECTOR
NOTE:
When performing a refrigerant leak check, use a electronic refrigerant leak detector (J-41995) or equivalent.
Ensure that the electronic refrigerant leak detector (J-41995) is calibrated and set properly according to the
manufacturer's operating instructions.
The electronic refrigerant leak detector (J-41995) is a delicate
device. To use the electronic refrigerant leak detector (J-41995)
properly, read the manufacturer's operating instructions and perform
any specified maintenance.
AHA281A
MTC-112
REFRIGERANT LINES
2007 Pathfinder
1.
Position the probe approximately 5 mm (3/16 in) away from the
point to be checked as shown.
2.
When checking for leaks, circle each fitting completely with the
probe as shown.
3.
Move the probe along each component at a speed of approxi-
mately 25 - 50 mm (1 - 2 in)/second as shown.
CHECKING PROCEDURE
NOTE:
To prevent inaccurate or false readings, make sure there is no refrigerant vapor, shop chemicals, or cigarette
smoke in the vicinity of the vehicle. Perform the leak test in a calm area (low air/wind movement) so that the
leaking refrigerant is not dispersed.
1.
Turn the engine OFF.
2.
Connect the manifold gauge set (J-39183-C) to the A/C service ports. Refer to
.
3.
Check if the A/C refrigerant pressure is at least 345 kPa (3.52 kg/cm
2
, 50 psi) above a temperature of
16
°
C (61
°
F). If less than specification, recover/evacuate and recharge the system with the specified
amount of refrigerant. Refer to
MTC-99, "HFC-134a (R-134a) Service Procedure"
NOTE:
At temperatures below 16
°
C (61
°
F), leaks may not be detected since the system may not reach 345 kPa
(3.52 kg/cm
2
, 50 psi) pressure.
4.
Perform the leak test from the high-pressure side (A/C compressor discharge “a” to evaporator inlet “f”) to
the low-pressure side (A/C evaporator drain hose “g” to shaft seal “k”). Refer to
. Clean the component to be checked and carefully move the electronic refrigerant leak detector probe
completely around the following connections and components.
●
Check the compressor shaft seal
●
Check the high and low-pressure pipe and hose fittings, relief valve, and compressor shaft seal
●
Check the liquid tank
SHA707EA
SHA706E
SHA708EA
REFRIGERANT LINES
MTC-113
C
D
E
F
G
H
I
K
L
M
A
B
MTC
2007 Pathfinder
●
Check the refrigerant pressure sensor
●
Check all around the service valves. Check that the service valve caps are screwed tightly on the ser-
vice valves (to prevent leaks).
NOTE:
After removing manifold gauge set (J-39183-C) from the service valves, wipe any residue from the ser-
vice valves to prevent any false readings by the electronic refrigerant leak detector (J-41995).
●
Evaporator
With engine OFF, turn blower fan on “High” for at least 15 seconds to dissipate any refrigerant trace in
the heater and cooling unit assembly. Wait a minimum of 10 minutes accumulation time (refer to the
manufacturer's recommended procedure for actual wait time) before inserting the electronic refrigerant
leak detector probe into the heater and cooling unit assembly drain hose.
NOTE:
Keep the probe inserted for at least 10 seconds. Use caution not to contaminate the probe tip with
water or dirt that may be in the drain hose.
5.
If a leak is detected, verify at least once by blowing compressed air into the area of the suspected leak,
then repeat the leak check.
6.
Do not stop when one leak is found. Continue to check for additional leaks at all system components and
connections.
7.
If no leaks are found, perform steps 8 - 11.
8.
Start the engine.
9.
Set the heater A/C controls as follows:
a.
A/C switch: ON
b.
Air flow: VENT mode
c.
Intake position: RECIRCULATION mode
d.
Temperature: MAX cold
e.
Blower fan speed: HIGH
10. Run the engine at 1,500 rpm for at least 2 minutes.
11. Turn the engine OFF and perform the leak check again following
steps 4 through 6 above.
Refrigerant leaks should be checked immediately after turning
the engine OFF. Begin with the leak detector at the compressor.
The pressure on the high pressure side will gradually drop after
the refrigerant circulation stops and pressure on the low pres-
sure side will gradually rise, as shown in the graph. Some leaks
are more easily detected when the pressure is high.
12. Before connecting the recovery/recycling equipment to the vehicle, check the recovery/recycling equip-
ment gauges. No refrigerant pressure should be displayed. If pressure is displayed, recover the refriger-
ant from the equipment lines and then check the refrigerant purity.
13. Confirm refrigerant purity in supply tank using recovery/recycling equipment and refrigerant identifier
equipment (J-41810-NI).
14. Confirm the refrigerant purity in the vehicle's A/C system using recovery/recycling equipment and refriger-
ant identifier equipment (J-41810-NI).
15. Discharge the A/C system using recovery/recycling equipment. Repair the leaking fitting or component as
necessary.
16. Evacuate and recharge the A/C system and perform the leak test to confirm that there are no refrigerant
leaks.
17. Conduct the Operational Check to ensure system works properly. Refer to
.
SHA839E
MTC-114
SERVICE DATA AND SPECIFICATIONS (SDS)
2007 Pathfinder
SERVICE DATA AND SPECIFICATIONS (SDS)
PFP:00030
Service Data and Specifications (SDS)
EJS004SS
COMPRESSOR
OIL
REFRIGERANT
ENGINE IDLING SPEED
Refer to
EC-75, "Idle Speed and Ignition Timing Check"
BELT TENSION
Refer to
.
Make
CALSONIC KANSEI CO. LTD.
Model
DKS-17D
Type
Swash plate
Displacement
144 cm
3
(8.79 in
3
) / revolution
Relief valve set pressure
3800
±
300 kPa (38.76
±
3.06 kg/cm
2
, 551.0
±
43.5 psi)
Direction of rotation
Clockwise (viewed from drive end)
Drive belt
Poly V ribbed
Description
NISSAN A/C System Oil Type S or equivalent
Capacity
180 m
(6.1 US fl oz, 6.3 Imp fl oz)
Type
HFC 134a (R-134a)
Capacity
0.70
±
0.05 kg (1.54
±
0.11 lb)
PB-1
PARKING BRAKE SYSTEM
F BRAKES
CONTENTS
C
D
E
G
H
I
J
K
L
M
SECTION
PB
A
B
PB
2007 Pathfinder
PREPARATION . . . . . . . . . . . . . . ... 2
Commercial Service Tools . . . . . . . . . . 2
PARKING BRAKE SYSTEM . . . . . . . . . .. 3
On-Vehicle Service . . . . . . . . . . . . ... 3
PARKING BRAKE CONTROL . . . . . . . . ... 4
Components . . . . . . . . . . . . . . . . 4
Removal and Installation . . . . . . . . . . .. 4
REMOVAL . . . . . . . . . . . . . . . . 4
INSTALLATION . . . . . . . . . . . . . . 5
PARKING BRAKE SHOE . . . . . . . . . . ... 6
Removal and Installation . . . . . . . . . . .. 6
SERVICE DATA AND SPECIFICATIONS (SDS) . . 9
Parking Drum Brake . . . . . . . . . . . . . 9
Parking Brake Control . . . . . . . . . . . .. 9
PB-2
PREPARATION
2007 Pathfinder
PREPARATION
PFP:00002
Commercial Service Tools
EFS0064A
Tool number
(Kent-Moore No.)
Tool name
Description
—
(J-21177-A)
Brake drum clearance gauge
Measuring rear rotor drum to parking
brake shoe clearance
Power tool
Loosening bolts and nuts
WFIA0167E
PBIC0190E
PARKING BRAKE SYSTEM
PB-3
C
D
E
G
H
I
J
K
L
M
A
B
PB
2007 Pathfinder
PARKING BRAKE SYSTEM
PFP:36010
On-Vehicle Service
EFS0064B
PEDAL STROKE
●
When parking brake pedal is operated with the specified force, make sure the stroke is within the specified
number of notches. Check by listening and counting the ratchet clicks.
INSPECTION
●
Make sure the components are attached properly, checking for looseness or backlash.
●
Check parking brake pedal assembly for bends, damage and cracks, and replace if necessary.
●
Check cable for wear and damage, and replace if necessary.
●
Check parking brake warning lamp switch for malfunction, and replace if necessary. Refer to
ADJUSTMENT
1.
Remove lower instrument panel LH. Refer to
IP-14, "LOWER INSTRUMENT PANEL LH"
2.
Partially engage parking brake pedal to access adjusting nut.
3.
Insert a deep socket wrench to rotate adjusting nut and loosen
cable until tension is sufficiently released. Then, disengage the
parking brake pedal.
4.
Remove the wheel and tire using power tool.
5.
Remove the rotor and measure inner diameter at widest point
using Tool.
6.
Transfer measurement less 0.6 mm to the parking brake shoes
and adjust accordingly.
7.
Using wheel nuts, secure the disc to the hub to prevent it from
tilting.
8.
Rotate disc rotor to make sure there is no drag.
9.
Adjust cable as follows:
a.
Operate pedal 10 or more times with a force of 490 N (50 kg-f,
110 lb-f).
b.
Rotate adjusting nut with deep socket to adjust pedal stroke to
specification.
c.
With parking brake pedal completely disengaged, make sure
there is no drag on the parking brake.
Pedal stroke
: 4
−
5 notches [under force of 196 N (20.0 kg-f, 44.1 lb-f)]
WFIA0165E
Tool number
:
—
(J-21177-A)
Pedal stroke
: 4
−
5 notches [under force of
196 N (20.0 kg-f, 44.1 lb-f)]
WFIA0166E
PB-4
PARKING BRAKE CONTROL
2007 Pathfinder
PARKING BRAKE CONTROL
PFP:36010
Components
EFS0064C
Removal and Installation
EFS0064D
REMOVAL
1.
Remove the lower instrument panel LH and center console. Refer to
and
2.
Remove the floor trim. Refer to
3.
Remove the parking brake control adjusting nut.
1.
Lock plate
2.
Pedal assembly
3.
Adjusting nut
4.
Left rear cable
5.
Right rear cable
6.
Pin
7.
Return spring
8.
Equalizer
9.
Front cable grommet
10. Front cable
LFIA0229E
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