engine coolant INFINITI FX35 2008 Service Manual

EM-20
< SERVICE INFORMATION >[VQ35DE]
INTAKE MANIFOLD COLLECTOR
1. Remove engine cover with power tool.
2. Disconnect water hoses from intake manifold collector (upper), attach blind plug to prevent engine coolant
leakage.
CAUTION:
 Perform this step when the engine is cold.
 Do not spill engine coolant on drive belts.
3. Remove air cleaner case and air duct. Refer to EM-17, "
Component".
4. Remove electric throttle control actuator as the following:
a. Disconnect harness connector.
b. Loosen mounting bolts in reverse order as shown in the figure. CAUTION:
 Handle carefully to avoid an y shock to electric throttle
control actuator.
 Do not disassemble.
5. Remove fuel sub-tube mounting bolt to disconnect from r ear of intake manifold collector (lower). Refer to
EM-45, "
Component".
6. Disconnect vacuum hose and water hose from intake manifold collector (upper).
7. Remove EVAP canister purge volume control solenoid valve bracket mounting bolt from intake manifold collector (upper).
SBIA0486E
KBIA0957E
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EM-26
< SERVICE INFORMATION >[VQ35DE]
EXHAUST MANIFOLD AND THREE WAY CATALYST
EXHAUST MANIFOLD AND THREE WAY CATALYST
ComponentINFOID:0000000001325714
 Refer to
GI-8, "Component" for symbols in the figure.
Removal and InstallationINFOID:0000000001325715
REMOVAL
WARNING:
Perform the work when the exhaust and co oling system have completely cooled down.
1. Remove engine cover with power tool. Refer to EM-19, "
Component".
2. Drain engine coolant. Refer to CO-10, "
Changing Engine Coolant".
CAUTION:
 Perform this step when the engine is cold.
 Do not spill engine coolant on drive belts.
3. Remove air cleaner case and air duct. Refer to EM-17, "
Component".
4. Remove front and rear engine undercover and front cross bar with power tool.
5. Disconnect heated oxygen sensors 2 ( bank 1 and bank 2) harness connectors.
1. Heated oxygen sensor 2 (bank 1) 2. Three way catalyst (right bank) 3. Gasket
4. Air fuel ratio sensor 1 (bank 1) 5. Exhaust manifold cover (right bank) 6. Exhaust manifold (right bank)
7. Exhaust manifold (left bank) 8. Exhaust manifold cover (left bank) 9. Three way catalyst (left bank)
10. Air fuel ratio sensor 1 (bank 2) 11. Heated oxygen sensor 2 (bank 2)
JPBIA0829GB
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OIL PAN AND OIL STRAINEREM-31
< SERVICE INFORMATION > [VQ35DE]
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 Do not spill engine oil on drive belts.
6. Drain engine coolant. Refer to CO-10, "
Changing Engine Coolant".
CAUTION:
 Perform this step when the engine is cold.
 Do not spill engine coolant on drive belts.
7. Remove engine cover with power tool. Refer to EM-19, "
Component".
8. Remove air hose from air duct to mass air flow sens or side and electric throttle control actuator side.
Refer to EM-17, "
Component".
9. Removal engine rear lower slinger, and install engine rear slinger [SST: 10006 31U00 ( — )] to sling engine assembly for positioning. Refer to EM-7, "
Special Service Tool".
10. Remove front suspension member. Refer to FSU-16, "
Removal and Installation".
11. Remove drive belts. Refer to EM-15, "
Removal and Installation".
12. Remove alternator stay. Refer to SC-19, "
System Description".
13. Remove starter motor. Refer to SC-8, "
System Description".
14. Remove idler pulley and bracket assembly. Refer to EM-64, "
Component".
15. Disconnect oil cooler water hoses, and remove oil cooler water pipe mounting bolt. Refer to LU-12, "
Com-
ponent".
16. Disconnect A/T fluid cooler hoses, and remove A/T fluid cooler tube. Refer to AT-241, "
Removal and
Installation (2WD Models)".
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 wh ere they are exposed to magnetism.
18. Remove oil filter, as necessary. Refer to LU-8, "
Removal and Installation".
19. Remove oil cooler, as necessary. Refer to LU-12, "
Component".
20. Remove oil pan (lower) as follows:
a. Loosen mounting bolts in reverse order as shown in the figure to remove.
b. Insert the seal cutter (SST) between oil pan (upper) and oil pan (lower).
CAUTION:
 Be careful not to damage the mating surfaces.
 Do not insert a screwdriver, this will damage the mating
surfaces.
c. Slide the seal cutter by tapping on the side of tool with a ham- mer. Remove oil pan (lower).Slinger bolts:
: 28.0 N·m (2.9 kg-m, 21 ft-lb)
PBIC0782E
SEM960F
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EM-36
< SERVICE INFORMATION >[VQ35DE]
OIL PAN AND OIL STRAINER
Removal and Installation (AWD Models)
INFOID:0000000001325719
REMOVAL
CAUTION:
To avoid the danger of being scalded, never drain engine oil when the engine is hot.
NOTE:
To remove oil pan (lower) only, take step 5, then st ep 24. Removal of step 1, hood assembly (step 2) and step
4 are unnecessary.
1. Remove front tire.
2. Remove hood assembly. Refer to BL-13, "
Fitting Adjustment".
3. Remove front and rear engine undercover with power tool.
4. Remove front cross bar with power tool. Refer to FSU-5, "
On-Vehicle Inspection and Service".
5. Drain engine oil. Refer to LU-7, "
Changing Engine Oil".
CAUTION:
 Perform this step when the engine is cold.
 Do not spill engine oil on drive belts.
6. Drain engine coolant. Refer to CO-10, "
Changing Engine Coolant".
CAUTION:
 Perform this step when the engine is cold.
 Do not spill engine coolant on drive belts.
7. Remove engine cover with power tool. Refer to EM-19, "
Component".
8. Remove air hose from air duct to mass air flow s ensor side and electric throttle control actuator side.
Refer to EM-17, "
Component".
9. Remove drive belts. Refer to EM-15, "
Removal and Installation".
10. Remove front drive shaft (LH and RH) and side shaft. Refer to FAX-13, "
On-Vehicle Inspection".
11. Remove side shaft. Refer to FFD-14, "
Removal and Installation (VQ35DE Models)".
12. Removal engine rear lower slinger, and install engine rear slinger [SST: 10006 31U00 ( — )] to sling engine assembly for positioning. Refer to EM-7, "
Special Service Tool".
13. Remove front suspension member. Refer to FSU-16, "
Removal and Installation".
14. Remove engine mounting bracket, engine mounting bracket (lower) and insulator. Refer to EM-112,
"Component (2WD Models)".
15. Remove front propeller shaft. Refer to PR-4, "
On-Vehicle Inspection".
16. Remove oil filter and oil filter bracket. Refer to LU-10, "
Component".
17. Remove alternator stay. Refer to SC-19, "
System Description".
18. Remove idler pulley and bracket. Refer to EM-15, "
Removal and Installation".
19. Disconnect oil cooler water hoses, and remove oil cooler water pipe mounting bolt. Refer to LU-12, "
Com-
ponent".
20. Disconnect A/T fluid cooler hoses, and remove A/T fluid cooler tube. Refer to AT-241, "
Removal and
Installation (2WD Models)".
21. Remove front final drive assembly. Refer to FFD-14, "
Removal and Installation (VQ35DE Models)".
22. Remove starter motor. Refer to SC-8, "
System Description".
1. Oil pan gasket (rear) 2. Oil pan (upper) 3. O-ring
4. Oil pan gasket (front) 5. Oil filter 6. Connector bolt
7. Oil cooler 8. O-ring 9. Relief valve
10. Oil filter bracket 11. Oil filter bracket gasket 12. Oil strainer
13. Drain plug 14. Drain plug washer 15. Oil pan (lower)
16. Rear plate cover 17. Crankshaft position sensor (POS) 18 O-ring (small)
19. O-ring (large) 20. Axle pipe
Slinger bolts:
: 28.0 N·m (2.9 kg-m, 21 ft-lb)
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FUEL INJECTOR AND FUEL TUBEEM-45
< SERVICE INFORMATION > [VQ35DE]
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FUEL INJECTOR AND FUEL TUBE
ComponentINFOID:0000000001325724
CAUTION:
Do not remove or disassemble parts unless
instructed as shown in the figure.
Removal and InstallationINFOID:0000000001325725
REMOVAL
WARNING:
 Put a “CAUTION: FLAMMABLE” sign in the workshop.
 Be sure to work in a well ventilated area and furnish workshop with a CO
2 fire extinguisher.
 Do not smoke while servicing fuel system. Keep open flames and sparks away from the work area.
 To avoid the danger of being scalded, do not drain engine coolant when the engine is hot.
1. Remove engine cover with power tool. Refer to EM-19, "
Component".
2. Release fuel pressure. Refer to EC-87, "
Fuel Pressure Check".
3. Drain engine coolant, or when water hoses are disconnec ted, attach plug to prevent engine coolant leak-
age. Refer to CO-10, "
Changing Engine Coolant" and EM-19, "Component".
CAUTION:
Perform this step when the engine is cold.
1. Fuel damper 2. O-ring 3. Fuel sub-tube
4. EVAP hose 5. Intake manifold collector (lower) 6. Fuel feed hose (with damper)
7. Fuel tube 8. Spacer 9. Clip
10. O-ring (blue) 11. Fuel in jector 12. O-ring (brown)
13. Hose clamp 14. Bracket 15. Quick connector cap
16. Centralized under-floor piping
SBIA0580E
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3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

ROCKER COVEREM-51
< SERVICE INFORMATION > [VQ35DE]
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ROCKER COVER
ComponentINFOID:0000000001325726
Removal and InstallationINFOID:0000000001325727
REMOVAL
1. Remove engine cover with power tool. Refer to
EM-19, "Component".
2. Release the fuel pressure. Refer to EC-87, "
Fuel Pressure Check".
3. Drain engine coolant, or when water hoses are disconnec ted, attach plug to prevent engine coolant leak-
age. Refer to CO-10, "
Changing Engine Coolant" and EM-19, "Component".
CAUTION:
Perform this step when the engine is cold.
4. Remove intake manifold collectors (upper and lower). Refer to EM-19, "
Component".
5. Separate engine harness removing thei r brackets from rocker covers.
6. Remove ignition coil. Refer to EM-42, "
Component".
7. Remove PCV hoses from rocker covers.
8. Remove PCV valve and O-ring from rocker cover (right bank), if necessary.
9. Remove oil filler cap and oil catcher from rocker cover (left bank), if necessary.
1. PCV hose 2. Oil filler cap 3. Oil catcher
4. Rocker cover (right bank) 5. PCV control valve 6. O-ring
7. Rocker cover gasket 8. Rocker cover (left bank)
PBIC2303E
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

EM-54
< SERVICE INFORMATION >[VQ35DE]
FRONT TIMING CHAIN CASE
FRONT TIMING CHAIN CASE
Removal and InstallationINFOID:0000000001325728
NOTE:
 This section describes removal/installation procedure
of front timing chain case and timing chain related
parts without removing oil pan (upper) on the 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-64, "
Com-
ponent".
 Refer to EM-64, "
Component" for component parts location.
REMOVAL
1. Disconnect negative battery terminal. Refer to SC-4, "How to Handle Battery".
2. Remove engine cover with power tool. Refer to EM-19, "
Component".
3. Remove air cleaner case assembly. Refer to EM-17, "
Component".
4. Remove front and rear engine undercover with power tool.
5. Release the fuel pressure. Refer to EC-87, "
Fuel Pressure Check".
6. Drain engine oil. Refer to LU-7, "
Changing Engine Oil".
CAUTION:
 Perform this step when the engine is cold.
 Do not spill engine oil on drive belts.
7. Drain engine coolant from radiator. Refer to CO-10, "
Changing Engine Coolant".
CAUTION:
 Perform this step when the engine is cold.
 Do not spill engine coolant on drive belts.
8. Separate engine harnesses removing their brackets from front timing chain case.
9. Remove drive belts. Refer to EM-15, "
Removal and Installation".
10. Remove intake manifold colle ctors (upper and lower). Refer to EM-19, "
Component".
11. Remove power steering oil pump from bracket with piping connected, and temporarily secure it aside.
Refer to PS-27, "
On-Vehicle Inspection and Service".
12. Remove power steering oil pump bracket. Refer to PS-27, "
On-Vehicle Inspection and Service".
13. Remove alternator. Refer to SC-19, "
System Description".
14. Remove water bypass hose, water hose clamp and idler pulley bracket from front timing chain case.
15. Remove intake valve timing control covers.  Loosen mounting bolts in reverse order as shown in the figure.
 Use the seal cutter [SST: KV10111100 (J37228)] to cut liquidgasket for removal.
CAUTION:
Shaft is internally jointed wi th camshaft sprocket (INT) cen-
ter hole. When removing, keep it horizontal until it is com-
pletely disconnected.
SEM728G
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EM-62
< SERVICE INFORMATION >[VQ35DE]
FRONT TIMING CHAIN CASE
e. Tighten mounting bolts in numerical order as shown in the fig-
ure.
9. Install crankshaft pulley as follows:
a. Fix crankshaft using the ring gear stopper [SST: KV10117700 (J44716)].
b. Install crankshaft pulley, taking care not to damage front oil seal.  When press-fitting crankshaft pulley with plastic hamme r, tap on its center portion (not circumference).
c. Tighten crankshaft pulley bolt.
d. Put a paint mark on crankshaft pulley aligning with angle mark on crankshaft pulley bolt.
e. Further tighten by 90 degrees. (Angle tightening)  Check the tightening angle by referencing to the notches. The
angle between two notches is 90 degrees.
10. Rotate crankshaft pulley in normal direction (clock wise when viewed from front) to confirm it turns
smoothly.
11. For the following operations, perform steps in the reverse order of removal. NOTE:
If hydraulic pressure inside chain tensioner drops after removal/installation, slack in the guide may gener-
ate a pounding noise during and just after engine start. However, this is normal. Noise will stop after
hydraulic pressure rises.
INSPECTION AFTER INSTALLATION
Inspection for Leaks
The followings are procedures for checking fluids leak, lubricates leak. Before starting engine, check oil/fluid levels incl uding engine coolant and engine oil. If less than required
quantity, fill to the specified level. Refer to GI-44, "
Recommended Chemical Product and Sealant".
 Use procedure below to check for fuel leakage.
- Turn ignition switch “ON” (with engine stopped). With fuel pressure applied to fuel piping, check for fuel leak-
age at connection points.
- Start engine. With engine speed increased, che ck again for fuel leakage at connection points.
 Run engine to check for unusual noise and vibration.
NOTE:
If hydraulic pressure inside chain tensioner drops af ter removal/installation, slack in guide may generate a
pounding noise during and just after the engine start. However, this does not indicate an unusualness. Noise
will stop after hydraulic pressure rises.
 Warm up engine thoroughly to make sure there is no leakage of fuel, or any oil/fluids including engine oil and engine coolant.
 Bleed air from lines and hoses of applic able lines, such as in cooling system.
PBIC0918E
: 44.1 N·m (4.5 kg-m, 33 ft-lb)
PBIC4821E
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FRONT TIMING CHAIN CASEEM-63
< SERVICE INFORMATION > [VQ35DE]
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 After cooling down engine, again check oil/fluid levels including engine oil and engine coolant. Refill to the
specified level, if necessary.
Summary of the inspection items:
*: Transmission/transaxle/CVT fluid. power steering fluid, brake fluid, etc. Items Before starting engine Engine running After engine stopped
Engine coolant Level Leakage Level
Engine oil Level Leakage Level
Other oils and fluid* Level Leakage Level
Fuel Leakage Leakage Leakage
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TIMING CHAINEM-65
< SERVICE INFORMATION > [VQ35DE]
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Removal and InstallationINFOID:0000000001325730
NOTE:
 This section describes procedures for removing/installing front timing chain case and timing chain related
parts, and rear timing chain case, when oil pan (upper) needs to be removed/installed for engine overhaul,
etc.
 To remove/install front timing chain case, timing chain, and its related parts without removing oil pan (upper),
refer to EM-54, "
Removal and Installation".
REMOVAL
1. Remove front tire.
2. Disconnect negative battery terminal.
3. Remove engine cover with power tool. Refer to EM-19, "
Component".
4. Remove air cleaner case assembly. Refer to EM-17, "
Component".
5. Remove front and rear engine undercover with power tool.
6. Release the fuel pressure. Refer to EC-87, "
Fuel Pressure Check".
7. Drain engine coolant from radiator. Refer to CO-10, "
Changing Engine Coolant".
CAUTION:
 Perform this step when the engine is cold.
 Do not spill engine coolant on drive belts.
8. Drain engine oil. Refer to LU-7, "
Changing Engine Oil".
CAUTION:
 Perform this step when the engine is cold.
 Do not spill engine oil on drive belts.
9. Remove engine harnesses.
10. Remove intake manifold collectors (upper and lower). Refer to EM-19, "
Component".
11. Remove radiator cooling fan assembly. Refer to CO-20, "
Component".
12. Remove drive belts. Refer to EM-15, "
Removal and Installation".
13. Remove A/C compressor from bracket with piping c onnected, and temporarily secure it aside. Refer to
ATC-121, "
Component".
14. Remove power steering oil pump from bracket with piping connected, and temporarily secure it aside.
Refer to PS-27, "
On-Vehicle Inspection and Service".
15. Remove power steering oil pump bracket. Refer to PS-27, "
On-Vehicle Inspection and Service".
16. Remove alternator. Refer to SC-19, "
System Description".
17. Remove water bypass hose, water hose clamp and id ler pulley bracket from front timing chain case.
18. Remove intake valve timing control covers.
10. Camshaft sprocket (INT) 11. Slack guide 12. Crankshaft sprocket
13. Timing chain tensioner (primary) 14. Intake valve timing control cover 15. Collared O-ring
16. O-ring 17. Chain tensioner cover 18. Intake valve timing control cover
19. Water hose clamp 20. Spacer 21. Idler pulley
22. Crankshaft pulley 23. Front oil seal 24. Idler pulley
25. A/C compressor bracket 26. Water pump cover 27. Bracket
28. Front timing chain case 29. Bracket 30. Rear timing chain case
31. O-ring 32. Tension guide 33. Water drain plug (front side)
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