2004 INFINITI FX35 water pump

DTC P0182, P0183 FTT SENSOR
EC-941
[VK45DE]
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Revision: 2004 November 2004 FX35/FX45
Component InspectionABS00C4E
FUEL TANK TEMPERATURE SENSOR
1. Remove fuel level sensor unit.
2. Check resistance between “fuel level sensor unit and fuel pump”
terminals 4 and 5 by heating with hot water or heat gun as
shown in the figure.
Removal and InstallationABS00C4F
FUEL TANK TEMPERATURE SENSOR
Refer to FL-4, "FUEL LEVEL SENSOR UNIT, FUEL FILTER AND FUEL PUMP ASSEMBLY" .
Temperature °C (°F) Resistance kΩ
20 (68) 2.3 - 2.7
50 (122) 0.79 - 0.90
PBIB0931E

EC-1006
[VK45DE]
DTC P0451 EVAP CONTROL SYSTEM PRESSURE SENSOR
Revision: 2004 November 2004 FX35/FX45
2. CHECK EVPA CONTROL SYSTEM PRESSURE SENSOR CONNECTOR FOR WATER
1. Disconnect EVAP control system pressure sensor harness connector.
2. Check sensor harness connector for water.
OK or NG
OK >> GO TO 3.
NG >> Repair or replace harness connector.
3. CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR
Refer to EC-1006, "
Component Inspection" .
OK or NG
OK >> GO TO 4.
NG >> Replace EVAP control system pressure sensor.
4. CHECK INTERMITTENT INCIDENT
Refer to EC-784, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT" .
For Wiring Diagram, refer to EC-1009
.
>>INSPECTION END
Component InspectionABS00C69
EVAP CONTROL SYSTEM PRESSURE SENSOR
1. Remove EVAP control system pressure sensor with its harness connector connected from EVAP canister.
Always replace O-ring with a new one.
2. Install a vacuum pump to EVAP control system pressure sensor.
3. Turn ignition switch ON and check output voltage between ECM
terminal 32 and ground under the following conditions.
CAUTION:

Always calibrate the vacuum pump gauge when using it.

Do not apply below -93.3 kPa (-700 mmHg, -27.56 inHg) or
pressure over 101.3 kPa (760 mmHg, 29.92 inHg).
4. If NG, replace EVAP control system pressure sensor.Water should not exist.
PBIB1522E
Applied vacuum kPa
(mmHg, inHg)Voltage V
Not applied 1.8 - 4.8
-26.7 (-200, -7.87) 2.1 to 2.5V lower than above value
PBIB1173E

DTC P1217 ENGINE OVER TEMPERATURE
EC-1143
[VK45DE]
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Revision: 2004 November 2004 FX35/FX45
COMPONENT DESCRIPTION
The cooling fan at each speed when the current flows in the cooling fan motor as follows.
CONSULT-II Reference Value in Data Monitor ModeABS00CAR
Specification data are reference values.
On Board Diagnosis LogicABS00CAS
If the cooling fan or another component in the cooling system malfunctions, engine coolant temperature will
rise.
When the engine coolant temperature reaches an abnormally high temperature condition, a malfunction is
indicated.
This self-diagnosis has the one trip detection logic.
CAUTION:
When a malfunction is indicated, be sure to replace the coolant. Refer to CO-36, "
Changing Engine
Coolant" . Also, replace the engine oil. Refer to LU-26, "Changing Engine Oil" .
1. Fill radiator with coolant up to specified level with a filling speed of 2 liters per minute. Be sure to
use coolant with the proper mixture ratio. Refer to MA-13, "
Anti-Freeze Coolant Mixture Ratio" .
2. After refilling coolant, run engine to ensure that no water-flow noise is emitted.
Overall Function CheckABS00CAT
Use this procedure to check the overall function of the cooling fan. During this check, a DTC might not be con-
firmed.
WARNING:
Never remove the radiator cap when the engine is hot. Serious burns could be caused by high pres-
sure fluid escaping from the radiator.
Wrap a thick cloth around cap. Carefully remove the cap by turning it a quarter turn to allow built-up
pressure to escape. Then turn the cap all the way off.
Cooling fan speedCooling fan motor terminals
(+) (−)
High (HI) 1 and 2 3 and 4
MONITOR ITEM CONDITION SPECIFICATION
COOLING FAN

Engine: After warming up, idle
the engine

Air conditioner switch: OFFEngine coolant temperature is 94°C
(201°F) or lessOFF
Engine coolant temperature is 95°C
(203°F) or moreHI
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P1217
1217Engine over tempera-
ture (Overheat)

Cooling fan does not operate properly (Over-
heat).

Cooling fan system does not operate prop-
erly (Overheat).

Engine coolant was not added to the system
using the proper filling method.

Engine coolant is not within the specified
range.

Harness or connectors
(The cooling fan circuit is open or
shorted.)

Cooling fan

Radiator hose

Radiator

Radiator cap

Water pump

Thermostat
For more information, refer to EC-1150,
"Main 12 Causes of Overheating" .

EC-1148
[VK45DE]
DTC P1217 ENGINE OVER TEMPERATURE
Revision: 2004 November 2004 FX35/FX45
4. CHECK COOLING SYSTEM FOR LEAK
Apply pressure to the cooling system with a tester, and check if the
pressure drops.
CAUTION:
Higher than the specified pressure may cause radiator damage.
Pressure should not drop.
OK or NG
OK >> GO TO 5.
NG >> Check the following for leak. Refer to CO-36, "
LEAK
CHECK" .

Hose

Radiator

Water pump
5. CHECK RADIATOR CAP
Apply pressure to cap with a tester.
OK or NG
OK >> GO TO 6.
NG >> Replace radiator cap.
6. CHECK THERMOSTAT
1. Check valve seating condition at normal room temperatures.
It should seat tightly.
2. Check valve opening temperature and valve lift.
3. Check if valve is closed at 5°C (9°F) below valve opening tem-
perature.
For details, refer to CO-51, "
THERMOSTAT AND WATER CON-
TROL VALVE" .
OK or NG
OK >> GO TO 7.
NG >> Replace thermostat
7. CHECK ENGINE COOLANT TEMPERATURE SENSOR
Refer to EC-846, "
Component Inspection" .
OK or NG
OK >> GO TO 8.
NG >> Replace engine coolant temperature sensor.Testing pressure: 157 kPa (1.6 kg/cm
2 , 23 psi)
PBIC1528E
Radiator cap
relief pressure:59 - 98 kPa (0.6 - 1.0 kg/cm2 , 9 - 14
psi)
SLC755A
Valve opening
temperature:82°C (180°F) [standard]
Valve lift: More than 10.0 mm/95°C
(0.394 in/203°F)
SLC343

EM-14
[VQ35DE]
NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING
Revision: 2004 November 2004 FX35/FX45
Use the Chart Below to Help You Find the Cause of the Symptom.ABS004TW
1. Locate the area where noise occurs.
2. Confirm the type of noise.
3. Specify the operating condition of engine.
4. Check specified noise source.
If necessary, repair or replace these parts.
A: Closely related B: Related C: Sometimes related —: Not relatedLocation
of noiseType of
noiseOperating condition of engine
Source of
noiseCheck itemRefer-
ence page Before
warm-
upAfter
warm-
upWhen
start-
ingWhen
idlingWhen
racingWhile
driving
Top of
engine
Rocker
cover
Cylinder
headTicking or
clickingCA—AB—Tappet
noiseValve clearanceEM-89
Rattle C A — A B CCamshaft
bearing
noiseCamshaft runout
Camshaft journal oil
clearanceEM-84EM-84
Crank-
shaft pul-
ley
Cylinder
block
(Side of
engine)
Oil panSlap or
knock—A—B B—Piston pin
noisePiston to piston pin oil
clearance
Connecting rod bush-
ing oil clearance (Small
end)EM-136
EM-138
Slap or
rapA——B B APiston
slap noisePiston to cylinder bore
clearance
Piston ring side clear-
ance
Piston ring end gap
Connecting rod bend
and torsionEM-140EM-137
EM-137
EM-138
Knock A B C B B BConnect-
ing rod
bearing
noiseConnecting rod bush-
ing oil clearance (Small
end)
Connecting rod bear-
ing housing diameter
(Big end)EM-138EM-138
Knock A B — A B CMain
bearing
noiseMain bearing oil clear-
ance
Crankshaft runoutEM-143EM-142
Front of
engine
Timing
chain
caseTapping or
tickingAA—BBBTiming
chain and
chain ten-
sioner
noiseTiming chain cracks
and wear
Timing chain tensioner
operationEM-71
Front of
engineSqueak-
ing or fizz-
ingAB—B—CDrive belts
(Sticking
or slip-
ping)Drive belts deflection
EM-15
CreakingABABABDrive belts
(Slipping)Idler pulley bearing
operation
Squall
CreakAB—BABWater
pump
noiseWater pump operationCO-22,
"WATER
PUMP"

OIL PAN AND OIL STRAINER
EM-31
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Revision: 2004 November 2004 FX35/FX45
CAUTION:
Perform when engine is cold.
7. Remove engine cover with power tool. Refer to EM-19, "
INTAKE MANIFOLD COLLECTOR" .
8. Remove air hose from air duct to mass air flow sensor side and electric throttle control actuator side.
Refer to EM-17, "
AIR CLEANER AND AIR DUCT" .
9. Removal engine rear lower slinger, and install engine rear slinger to sling engine assembly for positioning.
Refer to EM-8, "
Special Service Tools" .
10. Remove front suspension member. Refer to FSU-17, "
FRONT SUSPENSION MEMBER" .
11. Remove drive belt for alternator and power steering pump and A/C compressor. Refer to EM-15, "
DRIVE
BELTS" .
12. Remove alternator stay. Refer to SC-23, "
CHARGING SYSTEM" .
13. Remove starter motor. Refer to SC-10, "
STARTING SYSTEM" .
14. Remove alternator and power steering pump and A/C compressor idler pulley and bracket assembly.
Refer to EM-15, "
DRIVE BELTS" .
15. Disconnect A/T fluid cooler hoses, and remove oil cooler water pipe mounting bolt. Refer to LU-14, "
OIL
COOLER" .
16. Disconnect A/T fluid cooler tube.
17. Remove crankshaft position sensor (POS).
CAUTION:

Handle carefully to avoid dropping and shocks.

Do not disassemble.

Do not allow metal powder to adhere to magnetic part at sensor tip.

Do not place sensors in a location where they are exposed to magnetism.
18. Remove oil filter, as necessary. Refer to LU-10, "
OIL FILTER" .
19. Remove oil cooler, as necessary. Refer to LU-14, "
OIL COOLER" .
20. Remove oil pan (lower) as the following:
a. Loosen bolts in reverse order as shown in the figure to remove.
b. Insert seal cutter (SST) between oil pan (upper) and oil pan
(lower).
c. Slide seal cutter by tapping on the side of tool with hammer.
Remove oil pan (lower).
CAUTION:

Be careful not to damage the mating surface.

Do not insert flat-bladed screwdriver, this will damage the
mating surface.
21. Remove oil strainer.Slinger bolts:
: 28.0 N·m (2.9 kg-m, 21 ft-lb)
PBIC0782E
SEM960F

OIL PAN AND OIL STRAINER
EM-37
[VQ35DE]
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Revision: 2004 November 2004 FX35/FX45
8. Remove air hose from air duct to mass air flow sensor side and electric throttle control actuator side.
Refer to EM-17, "
AIR CLEANER AND AIR DUCT" .
9. Remove drive belt for alternator and power steering pump and A/C compressor. Refer to EM-15, "
DRIVE
BELTS" .
10. Remove front drive shaft (LH and RH) and side shaft. Refer to FA X - 1 2 , "
FRONT DRIVE SHAFT" .
11. Remove side shaft. Refer to FFD-10, "
FRONT FINAL DRIVE ASSEMBLY" .
12. Removal engine rear lower slinger, and install engine rear slinger to sling engine assembly for positioning.
Refer to EM-8, "
Special Service Tools" .
13. Remove front suspension member. Refer to Refer to FSU-17, "
FRONT SUSPENSION MEMBER" .
14. Remove engine mounting bracket, engine mounting bracket (lower) and insulator. Refer to EM-110,
"ENGINE ASSEMBLY" .
15. Remove front propeller shaft. Refer to PR-4, "
FRONT PROPELLER SHAFT" .
16. Remove oil filter and oil filter bracket. Refer to LU-12, "
OIL FILTER BRACKET (AWD)" .
17. Remove alternator stay. Refer to SC-23, "
CHARGING SYSTEM" .
18. Remove alternator and power steering pump and A/C compressor idler pulley and bracket. Refer to EM-
15, "DRIVE BELTS" .
19. Disconnect A/T fluid cooler hoses, and remove oil cooler water pipe mounting bolt. Refer to LU-14, "
OIL
COOLER" .
20. Disconnect A/T fluid cooler tube.
21. Remove front final drive assembly. Refer to FFD-10, "
FRONT FINAL DRIVE ASSEMBLY" .
22. Remove starter motor. Refer to SC-10, "
STARTING SYSTEM" .
23. Remove crankshaft position sensor (POS).
CAUTION:

Handle carefully to avoid dropping and shocks.

Do not disassemble.

Do not allow metal powder to adhere to magnetic part at sensor tip.

Do not place sensors in a location where they are exposed to magnetism.
24. Remove oil pan (lower) as the following:
a. Loosen bolts in reverse order as shown in the figure to remove.
b. Insert seal cutter (SST) between oil pan (upper) and oil pan
(lower).
c. Slide seal cutter by tapping on the side of tool with hammer.
Remove oil pan (lower).
CAUTION:

Be careful not to damage the mating surface.

Do not insert flat-bladed screwdriver, this will damage the
mating surface.Slinger bolts:
: 28.0 N·m (2.9 kg-m, 21 ft-lb)
PBIC0782E
SEM960F

EM-54
[VQ35DE]
FRONT TIMING CHAIN CASE
Revision: 2004 November 2004 FX35/FX45
FRONT TIMING CHAIN CASEPFP:13599
Removal and InstallationABS004X0
NOTE:

This section describes removal/installation procedure of front timing chain case and timing chain related
parts without removing oil pan (upper) on vehicle.

When oil pan (upper) needs to be removed or installed, or when rear timing chain case is removed or
installed, remove oil pans (upper and lower) first. Then remove front timing chain case, timing chain
related parts, and rear timing chain case in this order, and install in reverse order of removal. Refer to EM-
63, "TIMING CHAIN" .

Refer to EM-63, "TIMING CHAIN" for component parts location.
REMOVAL
1. Place vehicle onto lift.
2. Disconnect negative battery terminal.
3. Remove engine cover with power tool. Refer to EM-19, "
INTAKE MANIFOLD COLLECTOR" .
4. Remove air cleaner case assembly. Refer to EM-17, "
AIR CLEANER AND AIR DUCT" .
5. Remove front and rear engine undercover with power tool.
6. Drain engine coolant from radiator. Refer to CO-11, "
Changing Engine Coolant" .
7. Drain engine oil from oil pan. Refer to LU-9, "
Changing Engine Oil" .
8. Remove engine harnesses.
9. Remove intake manifold collectors (upper and lower) with power tool. Refer to EM-19, "
INTAKE MANI-
FOLD COLLECTOR" .
10. Remove power steering oil pump from bracket with piping connected, and temporarily secure it aside.
Refer to PS-31, "
POWER STEERING OIL PUMP" .
11. Remove power steering oil pump bracket. Refer to PS-31, "
POWER STEERING OIL PUMP" .
12. Remove alternator. Refer to SC-23, "
CHARGING SYSTEM" .
13. Remove water bypass hose, water hose clamp and idler pulley bracket and alternator and power steering
oil pump and A/C compressor belt tensioner from front timing chain case.
14. Remove right and left intake valve timing control covers with
power tool.

Loosen bolts in reverse order as shown in the figure.

U s e s e a l c u t t e r [ S S T: K V 1 0 1111 0 0 ( J - 3 7 2 2 8 ) ] o r a n e q u i v a l e n t
tool to cut liquid gasket for removal.
CAUTION:
Shaft is internally jointed with intake camshaft sprocket
center hole. When removing, keep it horizontal until it is
completely disconnected.
15. Remove collared O-rings from front timing chain case (left and
right side).
16. Remove right and left rocker covers. Refer to EM-51, "
ROCKER COVER" .
NOTE:
When secondary timing chain is not removed/installed, this step is not required.
SEM728G
PBIC2045E