Nissan Pathfinder (2006 year). Manual — part 133
ENGINE COOLANT
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2006 Pathfinder
10. Place the coolant container (with the refill hose inserted) at the same level as the top of the radiator. Then
open the ball valve on the refill hose so the coolant will be drawn up to fill the cooling system. The cooling
system is full when the vacuum gauge reads zero.
CAUTION:
Do not allow the coolant container to get too low when filling, to avoid air from being drawn into
the cooling system.
11. Remove the Tool from the radiator neck opening and install the radiator cap.
12. Remove the reservoir cap.
13. Fill the cooling system reservoir tank to the specified level. Run the engine to warm up the cooling system
and top up the system as necessary before installing the reservoir cap.
FLUSHING COOLING SYSTEM
1.
Drain the water from the engine cooling system. Refer to
CO-10, "DRAINING ENGINE COOLANT"
2.
Fill the radiator and the reservoir tank (to the “MAX” line), with water. Reinstall the radiator cap and leave
the vented reservoir cap off.
3.
Run the engine until it reaches normal operating temperature.
4.
Press the engine accelerator two or three times under no-load.
5.
Stop the engine and wait until it cools down.
6.
Drain the water from the engine cooling system. Refer to
CO-10, "DRAINING ENGINE COOLANT"
7.
Repeat steps 2 through 6 until clear water begins to drain from the radiator.
CO-14
RADIATOR
2006 Pathfinder
RADIATOR
PFP:21400
Removal and Installation
EBS00QCY
WARNING:
Do not remove radiator cap when engine is hot. Serious burns could occur from high-pressure engine
coolant escaping from radiator. Wrap a thick cloth around the cap. Slowly turn it a quarter of a turn to
release built-up pressure. Carefully remove radiator cap by turning it all the way.
REMOVAL
1.
Remove engine cover with power tool. Refer to
EM-13, "Removal and Installation"
2.
Drain engine coolant from radiator. Refer to
CAUTION:
●
Perform this step when engine is cold.
●
Do not spill engine coolant on drive belts.
3.
Remove air duct and air cleaner case assembly. Refer to
EM-16, "Removal and Installation"
.
4.
Remove reservoir tank hose.
5.
Removal radiator hoses (upper and lower) and reservoir tank hose.
CAUTION:
Be careful not to allow engine coolant to contact drive belts.
6.
Remove radiator cooling fan assembly. Refer to
1.
Reservoir tank
2.
Reservoir tank cap
3.
Reservoir tank hose
4.
Radiator hose (upper)
5.
Upper mount bracket
6.
Mounting rubber (upper)
7.
Radiator cap
8.
Radiator
9.
Mounting rubber (lower)
10. Radiator drain plug
11.
O-ring
12. A/T fluid cooler hose
13. Radiator hose (lower)
14. Heater bypass tube
15. Heater bypass hose
LBIA0418E
RADIATOR
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2006 Pathfinder
7.
Disconnect A/T fluid cooler hoses.
●
Install blind plug to avoid leakage of A/T fluid.
8.
Remove the upper mount bracket bolts.
9.
Remove the two A/C condenser bolts.
10. Remove radiator as follows:
CAUTION:
Do not damage or scratch A/C condenser and radiator core when removing.
a.
With lifting and pulling radiator in a rear direction, disassemble
lower mount from radiator core support center.
CAUTION:
Because A/C condenser is onto the front-lower portion of
radiator, moving to rear direction should be at minimum.
b.
Lift A/C condenser up and remove radiator after disengaging the
fitting as front-bottom surface.
CAUTION:
Lifting A/C condenser should be minimum to prevent a load
to A/C piping.
c.
After removing radiator, put A/C condenser on radiator core sup-
port center to prevent a load to A/C piping, and temporarily fix it
with rope or similar means.
LBIA0419E
LBIA0421E
PBIC1936E
PBIC1054E
CO-16
RADIATOR
2006 Pathfinder
INSTALLATION
Installation is in the reverse order of removal.
INSPECTION AFTER INSTALLATION
●
Check for leaks of engine coolant using tool. Refer to
CO-9, "CHECKING COOLING SYSTEM FOR
.
●
Start and warm up engine. Visually check there are no leaks of engine coolant and A/T fluid.
ENGINE COOLING FAN
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ENGINE COOLING FAN
PFP:21140
Removal and Installation (Crankshaft driven type)
EBS00QCZ
REMOVAL
1.
Remove air duct. Refer to
EM-16, "Removal and Installation"
.
2.
Remove the engine front undercover.
3.
Remove the upper and lower radiator shrouds. Refer to
CO-14, "Removal and Installation"
4.
Remove drive belts. Refer to
EM-14, "Removal and Installation"
5.
Remove cooling fan.
INSPECTION AFTER REMOVAL
Fan Coupling
Inspect fan coupling for oil leakage and bimetal conditions.
Fan Bracket
●
Visually check that there is no significant looseness in the fan
bracket shaft, and that it turns smoothly by hand.
●
If there are any unusual concerns, replace the fan bracket
assembly.
INSTALLATION
Installation is in the reverse order of removal.
●
Install cooling fan with its front mark “F” facing front of engine. Refer to
CO-17, "Removal and Installation
1.
Cooling fan
2.
Fan coupling
3.
Fan bracket
4.
Cooling fan pulley
WBIA0726E
SLC072
LBIA0422E
CO-18
ENGINE COOLING FAN
2006 Pathfinder
INSPECTION AFTER INSTALLATION
●
Check for leaks of the engine coolant using tool. Refer to
CO-9, "CHECKING COOLING SYSTEM FOR
.
●
Start and warm up the engine. Visually make sure that there are no leaks of the engine coolant.
Removal and Installation (Motor driven type)
EBS00QD0
REMOVAL
1.
Remove radiator upper and lower shroud. Refer to
2.
Disconnect harness connector from fan motor.
3.
Remove the bolt and remove the fan grille and motor assembly.
INSTALLATION
Installation is in the reverse order of removal.
●
Cooling fan is controlled by ECM. For details, refer to
EC-493, "Cooling Fan Operation"
.
LBIA0423E
WATER PUMP
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WATER PUMP
PFP:21020
Removal and Installation
EBS00QD1
CAUTION:
●
When removing water pump assembly, be careful not to get engine coolant on drive belts.
●
Water pump cannot be disassembled and should be replaced as a unit.
●
After installing water pump, connect hose and clamp securely, then check for leaks using tool.
REMOVAL
1.
Remove undercover with power tool.
2.
Remove drive belts. Refer to
EM-14, "Removal and Installation"
3.
Drain engine coolant. Refer to
CAUTION:
●
Perform this step when engine is cold.
●
Do not spill engine coolant on drive belts.
4.
Remove radiator hoses (upper and lower) and cooling fan assembly. Refer to
5.
Remove chain tensioner cover and water pump cover from front
timing chain case, using Tool.
1.
Water pump
2.
Timing chain tensioner (primary)
3.
Chain tensioner cover
4.
Water drain plug (front)
5.
Water pump cover
6.
O-ring
7.
O-ring
PBIC2833E
Tool number
: KV10111100 (J-37228)
PBIC2662E
CO-20
WATER PUMP
2006 Pathfinder
6.
Remove timing chain tensioner (primary) as follows:
a.
Loosen clip of timing chain tensioner (primary), and release
plunger stopper. (1)
b.
Insert plunger into tensioner body by pressing slack guide. (2)
c.
Keep slack guide pressed and hold plunger in by pushing stop-
per pin through the tensioner body hole and plunger groove. (3)
d.
Turn crankshaft pulley clockwise so that timing chain on the tim-
ing chain tensioner (primary) side is loose.
e.
Remove bolts and remove timing chain tensioner (primary).
CAUTION:
Be careful not to drop bolts inside timing chain case.
7.
Remove water pump as follows:
a.
Remove three water pump bolts. Secure a gap between water
pump gear and timing chain, by turning crankshaft pulley coun-
terclockwise until timing chain looseness on water pump
sprocket becomes maximum.
PBIC2835E
PBIC2834E
PBIC2836E
PBIC2863E
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