Nissan Frontier. Instruction — part 225
ENGINE COOLING FAN
CO-47
< REMOVAL AND INSTALLATION >
[VQ40DE]
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ENGINE COOLING FAN
Exploded View
INFOID:0000000009478188
Crankshaft Driven Type
Removal and Installation (Crankshaft driven type)
INFOID:0000000009478189
WARNING:
Do not remove the radiator cap when the engine is hot. Serious burns could occur from high pressure
engine coolant escaping from the 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.
NOTE:
When removing components such as hoses, tubes/lines, etc., cap or plug openings to prevent fluid from spill-
ing.
REMOVAL
1. Remove the engine cooling fan (Motor driven type). Refer to
CO-48, "Removal and Installation (Motor
2. Remove reservoir tank hose from shroud.
3. Removal radiator hose (upper) from radiator.
CAUTION:
Do not spill engine coolant on drive belts.
4. Release the radiator shroud (lower) (2) from the radiator shroud
(upper) (1) and position aside.
• Release the tabs, pull radiator shroud (lower) (2) rearwards
and down.
5. Remove the radiator shroud (upper) bolts and remove the radiator shroud (upper). Refer to
6. Remove the drive belt. Refer to
EM-129, "Removal and Installation"
.
7. Remove the engine cooling fan.
8. Remove the fan coupling, if necessary.
9. Remove the cooling fan pulley, if necessary.
10. Remove the drive belt auto-tensioner, if necessary.
11. Remove the fan bracket, if necessary.
INSPECTION AFTER REMOVAL
AWBIA1124GB
1.
Cooling fan
2.
Fan coupling
3.
Fan bracket
4.
Cooling fan pulley
5.
Stud
F.
Front mark
ALBIA0470ZZ
CO-48
< REMOVAL AND INSTALLATION >
[VQ40DE]
ENGINE COOLING FAN
Fan Coupling
• Inspect fan coupling for oil leakage and bimetal conditions.
• If there are any concerns replace the fan coupling.
Fan Bracket
• Check that the fan bracket shaft turns smoothly by hand and is not
excessively loose.
• If there are any 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
.
INSPECTION AFTER INSTALLATION
• Check for engine coolant leaks. Refer to
• Start and warm up the engine. Visually check for engine coolant leaks. Repair as necessary.
Removal and Installation (Motor driven type)
INFOID:0000000009478190
NOTE:
When removing components such as hoses, tubes/lines, etc., cap or plug openings to prevent fluid from spill-
ing.
REMOVAL
1. Partially drain engine coolant from radiator. Refer to
CO-40, "Changing Engine Coolant"
.
CAUTION:
• Perform this step when engine is cold.
• Do not spill engine coolant on drive belts.
2. Release the radiator shroud (lower) (2) from the radiator shroud
(upper) (1) and position aside.
• Release the tabs, pull radiator shroud (lower) (2) rearwards
and down.
3. Remove engine room cover. Refer to
EM-140, "Removal and Installation"
4. Remove air duct and resonator assembly. Refer to
EM-141, "Removal and Installation"
5. Remove upper radiator hose from radiator.
SLC072
LBIA0422E
ALBIA0470ZZ
ENGINE COOLING FAN
CO-49
< REMOVAL AND INSTALLATION >
[VQ40DE]
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6. Remove reservoir tank hose from radiator shroud (upper) and radiator.
7. Remove the radiator shroud (upper) bolts and remove the radiator shroud (upper). Refer to
8. Disconnect harness connector from fan motor.
9. 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. Refer to
.
AWBIA0148ZZ
CO-50
< REMOVAL AND INSTALLATION >
[VQ40DE]
WATER PUMP
WATER PUMP
Exploded View
INFOID:0000000009478191
Removal and Installation
INFOID:0000000009478192
WARNING:
Do not remove the radiator cap when the engine is hot. Serious burns could occur from high pressure
engine coolant escaping from the 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.
CAUTION:
• When removing water pump assembly, be careful not to get engine coolant on timing chain and drive
belt.
• 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.
NOTE:
When removing components such as hoses, tubes/lines, etc., cap or plug openings to prevent fluid from spill-
ing.
REMOVAL
1. Drain engine coolant from radiator. Refer to
CO-40, "Changing Engine Coolant"
.
CAUTION:
• Perform this step when engine is cold.
• Do not spill engine coolant on timing chain and drive belt.
2. Remove water drain plug (front) (1) on the water pump side of
the cylinder block.
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
ALBIA0679ZZ
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