Nissan Frontier D40. Instruction — part 196
RADIATOR
CO-45
< ON-VEHICLE REPAIR >
[VQ40DE]
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b.
Lift A/C condenser up and remove radiator after disengaging the
fitting at 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.
INSTALLATION
Installation is in the reverse order of removal.
INSPECTION AFTER INSTALLATION
• Check for leaks of engine coolant. Refer to
.
• Start and warm up engine. Visually check there are no leaks of engine coolant and A/T fluid.
Checking Radiator
INFOID:0000000005276112
Check radiator for mud or clogging. If necessary, clean radiator as follows.
CAUTION:
• Be careful not to bend or damage the radiator fins.
• When radiator is cleaned without removal, remove all surrounding parts such as cooling fan, radia-
tor shroud and horns. Then tape the harness and electrical connectors to prevent water from enter-
ing.
1.
Apply water by hose to the back side of the radiator core vertically downward.
2.
Apply water again to all radiator core surfaces.
3.
Stop washing when dirt and debris no longer flow out from the radiator.
4.
Blow air into the back side of radiator core vertically downward.
• Use compressed air lower than 490 kPa (5 kg/cm
2
, 71 psi) and keep distance more than 30 cm (11.8 in).
5.
Blow air again into all the radiator core surfaces until no water sprays out.
6.
Check for leaks.
PBIC1054E
CO-46
< ON-VEHICLE REPAIR >
[VQ40DE]
ENGINE COOLING FAN
ENGINE COOLING FAN
Exploded View
INFOID:0000000005276113
Crankshaft Driven Type
Removal and Installation (Crankshaft driven type)
INFOID:0000000005276114
REMOVAL
1.
Remove engine under cover. Refer to
EXT-13, "Removal and Installation"
.
2.
Partially 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 the engine room cover. Refer to
EM-138, "Removal and Installation"
4.
Remove air duct and resonator assembly. Refer to
EM-139, "Removal and Installation"
5.
Remove reservoir tank hose from shroud.
6.
Removal radiator hose (upper) from radiator.
CAUTION:
Do not spill engine coolant on drive belts.
7.
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.
8.
Remove the radiator shroud (upper) bolts and remove the radiator shroud (upper). Refer to
9.
Remove the engine cooling fan (Motor driven type). Refer to
CO-47, "Removal and Installation (Motor
10. Remove the drive belt. Refer to
EM-127, "Removal and Installation"
.
11. Remove the engine cooling fan.
12. Remove the fan coupling, if necessary.
13. Remove the cooling fan pulley, if necessary.
14. Remove the drive belt auto-tensioner, if necessary.
15. Remove the fan bracket, if necessary.
WBIA0726E
1.
Cooling fan
2.
Fan coupling
3.
Fan bracket
4.
Cooling fan pulley
ALBIA0470ZZ
ENGINE COOLING FAN
CO-47
< ON-VEHICLE REPAIR >
[VQ40DE]
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INSPECTION AFTER REMOVAL
Fan Coupling
• Inspect fan coupling for oil leakage and bimetal conditions.
• If there are any unusual concerns, replace the fan coupling.
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 assem-
bly.
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 leaks of the engine coolant. Refer to
• Start and warm up the engine. Visually make sure that there are no leaks of the engine coolant.
Removal and Installation (Motor driven type)
INFOID:0000000005276115
REMOVAL
1.
Remove the engine under cover. Refer to
EXT-13, "Removal and Installation"
.
2.
Partially drain engine coolant from radiator. Refer to
CO-39, "Changing Engine Coolant"
.
CAUTION:
• Perform this step when engine is cold.
• Do not spill engine coolant on drive belts.
3.
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.
4.
Remove engine room cover. Refer to
EM-138, "Removal and Installation"
.
5.
Remove air duct and resonator assembly. Refer to
EM-139, "Removal and Installation"
.
6.
Remove upper radiator hose from radiator.
SLC072
LBIA0422E
ALBIA0470ZZ
CO-48
< ON-VEHICLE REPAIR >
[VQ40DE]
ENGINE COOLING FAN
7.
Remove reservoir tank hose from radiator shroud (upper) and radiator.
8.
Remove the radiator shroud (upper) bolts and remove the radiator shroud (upper). Refer to
9.
Disconnect harness connector from fan motor.
10. 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
.
AWBIA0148ZZ
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