Infiniti Car 1998-05

Engine

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Removal & Installation



2.0L Engine
  1. Before servicing the vehicle, refer to the Precautions section.
  2.  
  3. Drain the coolant system.
  4.  
  5. Drain the engine oil.
  6.  
  7. Drain the transaxle fluid.
  8.  
  9. Release fuel system pressure and remove fuel line.
  10.  
  11. Remove or disconnect the following:

    Hood and hinges
     
    Negative battery cable
     
    Both front wheels
     
    Engine undercover
     
    Air cleaner assembly and duct
     
    Battery and battery tray
     
    All vacuum lines and wiring harness connectors
     
    Heater hoses
     
    Oil cooler lines, if equipped
     
    Power steering hoses
     
    Fuel lines
     
    Throttle cable
     
    Cruise control cable, if equipped
     
    A/T control cable, if equipped
     
    Cooling fans, radiator and recovery tank
     
    Drive shafts
     
    Front exhaust pipe
     
    Starter and intake manifold support
     
    Drive belts
     
    Alternator, A/C compressor, and the power steering pump from the engine and lay them aside. Do not disconnect the compressor or power steering pump lines.
     

  12.  
  13. Support the engine with a hoist and the transaxle with a suitable jack. Raise the engine and transaxle slightly and remove the center member.

    Engine mounting bolts from both sides and slowly lower the hoist and transaxle jack
     
    Engine and transaxle from beneath the vehicle
     

  14.  

To install:

  1. Install or connect the following:

    Center member bracket (manual transmission) on the engine, if removed. Ensure that all insulators are correctly positioned on the brackets. Torque the insulator through-bolts to 32-41 ft. lbs. (43-55 Nm).
     

  2.  
  3. If equipped with manual transaxle, ensure that the distance between the center of the insulator through-bolt and the center member is 2.28-2.36 in. (58-60mm). Torque the through-bolt to 46-58 ft. lbs. (62-78 Nm).

    Engine. Torque the center member-to-frame bolts to 57-72 ft. lbs. (77-98 Nm).
     
    Alternator, air conditioning compressor, and power steering pump
     
    Drive belts
     
    Starter and intake manifold support
     
    Front exhaust pipe
     
    Drive shafts
     
    Cooling fans, radiator and recovery tank
     
    A/T control cable, if equipped
     
    Cruise control cable, if equipped
     
    Throttle cable
     
    Fuel lines
     
    Power steering hoses
     
    Oil cooler lines, if equipped
     
    Heater hoses
     
    All vacuum lines and wiring harness connectors
     
    Engine undercover
     
    Front wheels
     
    Battery and battery tray
     
    Air cleaner assembly and duct
     
    Negative battery cable
     
    Hood and hinges
     

  4.  
  5. Fill and bleed the cooling system.
  6.  
  7. Fill the engine with clean oil.
  8.  
  9. Fill the transaxle to the proper level.
  10.  
  11. Start the vehicle, check for leaks and repair if necessary.
  12.  

  1. Before servicing the vehicle, refer to the precautions in the beginning of this section.
  2.  
  3. Drain the coolant system.
  4.  
  5. Drain the engine oil.
  6.  
  7. Drain the transaxle fluid.
  8.  
  9. Release fuel system pressure and remove fuel line.
  10.  
  11. Remove or disconnect the following:

    Hood and hinges
     
    Negative battery cable
     
    Both front wheels
     
    Engine under cover
     
    Air cleaner assembly and duct
     
    Battery and battery tray
     
    All vacuum lines and wiring harness connectors
     
    Heater hoses
     
    Oil cooler lines, if equipped
     
    Power steering hoses
     
    Fuel lines
     
    Throttle cable
     
    Cruise control cable, if equipped
     
    A/T control cable, if equipped
     
    Cooling fans, radiator and recovery tank
     
    Drive shafts
     
    Front exhaust pipe
     
    Starter and intake manifold support
     
    Drive belts
     
    Alternator, A/C compressor, and the power steering pump from the engine and lay them aside. Do not disconnect the compressor or power steering pump lines.
     

  12.  
  13. Support the engine with a hoist and the transaxle with a suitable jack. Raise the engine and transaxle slightly and remove the center member.

    Engine mounting bolts from both sides and slowly lower the hoist and transaxle jack
     
    Engine and transaxle from beneath the vehicle
     

  14.  

To install:

  1. Install or connect the following:

    Center member bracket (manual transmission) on the engine, if removed. Ensure that all insulators are correctly positioned on the brackets. Torque the insulator through-bolts to 32-41 ft. lbs. (43-55 Nm)
     

  2.  
  3. If equipped with manual transaxle, ensure that the distance between the center of the insulator through-bolt and the center member is 2.28-2.36 in. (58-60mm). Torque the through-bolt to 46-58 ft. lbs. (62-78 Nm)

    Engine. Torque the center member-to-frame bolts to 57-72 ft. lbs. (77-98 Nm)
     
    Alternator, air conditioning compressor, and power steering pump
     
    Drive belts
     
    Starter and intake manifold support
     
    Front exhaust pipe
     
    Drive shafts
     
    Cooling fans, radiator and recovery tank
     
    A/T control cable, if equipped
     
    Cruise control cable, if equipped
     
    Throttle cable
     
    Fuel lines
     
    Power steering hoses
     
    Oil cooler lines, if equipped
     
    Heater hoses
     
    All vacuum lines and wiring harness connectors
     
    Engine under cover
     
    Front wheels
     
    Battery and battery tray
     
    Air cleaner assembly and duct
     
    Negative battery cable
     
    Hood and hinges
     

  4.  
  5. Fill and bleed the cooling system.
  6.  
  7. Fill the engine with clean oil.
  8.  
  9. Fill the transaxle to the proper level.
  10.  
  11. Start the vehicle, check for leaks and repair if necessary.
  12.  

  1. Before servicing the vehicle, refer to the Precautions section.
  2.  
  3. Drain the coolant system.
  4.  
  5. Drain the engine oil.
  6.  
  7. Drain the transaxle fluid.
  8.  
  9. Release fuel system pressure and remove fuel line.
  10.  
  11. Remove or disconnect the following:

    Hood and hinges
     
    Negative battery cable
     
    Both front wheels
     
    Engine under cover
     
    Air cleaner assembly and duct
     
    Battery and battery tray
     
    All vacuum lines and wiring harness connectors
     
    Heater hoses
     
    Oil cooler lines, if equipped
     
    Power steering hoses
     
    Fuel lines
     
    Throttle cable
     
    Cruise control cable, if equipped
     
    A/T control cable, if equipped
     
    Cooling fans, radiator and recovery tank
     
    Driveshafts
     
    Front exhaust pipe
     
    Starter and intake manifold support
     
    Drive belts
     
    Alternator, A/C compressor, and the power steering pump from the engine and lay them aside. Do not disconnect the compressor or power steering pump lines.
     

  12.  
  13. Support the engine with a hoist and the transaxle with a suitable jack. Raise the engine and transaxle slightly and remove the center member.

    Engine mounting bolts from both sides and slowly lower the hoist and transaxle jack
     
    Engine and transaxle from beneath the vehicle
     

  14.  

To install:

  1. Install or connect the following:

    Center member bracket (manual transmission) on the engine, if removed. Ensure that all insulators are correctly positioned on the brackets. Torque the insulator through-bolts to 32-41 ft. lbs. (43-55 Nm)
     

  2.  
  3. If equipped with manual transaxle, ensure that the distance between the center of the insulator through-bolt and the center member is 2.28-2.36 in. (58-60 Nm). Torque the through-bolt to 46-58 ft. lbs. (62-78 Nm)

    Engine. Torque the center member-to-frame bolts to 57-72 ft. lbs. (77-98 Nm)
     
    Alternator, air conditioning compressor, and power steering pump
     
    Drive belts
     
    Starter and intake manifold support
     
    Front exhaust pipe
     
    Driveshafts
     
    Cooling fans, radiator and recovery tank
     
    A/T control cable, if equipped
     
    Cruise control cable, if equipped
     
    Throttle cable
     
    Fuel lines
     
    Power steering hoses
     
    Oil cooler lines, if equipped
     
    Heater hoses
     
    All vacuum lines and wiring harness connectors
     
    Engine under cover
     
    Front wheels
     
    Battery and battery tray
     
    Air cleaner assembly and duct
     
    Negative battery cable
     
    Hood and hinges
     

  4.  
  5. Fill and bleed the cooling system.
  6.  
  7. Fill the engine with clean oil.
  8.  
  9. Fill the transaxle to the proper level.
  10.  
  11. Start the vehicle, check for leaks and repair if necessary.
  12.  

  1. Before servicing the vehicle, refer to the Precautions section.
  2.  
  3. Drain the coolant system.
  4.  
  5. Drain the engine oil.
  6.  
  7. Drain the transaxle fluid.
  8.  
  9. Release fuel system pressure and remove fuel line.
  10.  
  11. Remove or disconnect the following:

    Hood and hinges
     
    Negative battery cable
     
    Both front wheels
     
    Engine undercover
     
    Air cleaner assembly and duct
     
    Battery and battery tray
     
    All vacuum lines and wiring harness connectors
     
    Heater hoses
     
    Oil cooler lines, if equipped
     
    Power steering hoses
     
    Fuel lines
     
    Throttle cable
     
    Cruise control cable, if equipped
     
    A/T control cable, if equipped
     
    Cooling fans, radiator and recovery tank
     
    Driveshafts
     
    Front exhaust pipe
     
    Starter and intake manifold support
     
    Drive belts
     
    Alternator, A/C compressor, and the power steering pump from the engine and lay them aside. Do not disconnect the compressor or power steering pump lines.
     

  12.  
  13. Support the engine with a hoist and the transaxle with a suitable jack. Raise the engine and transaxle slightly and remove the center member.

    Engine mounting bolts from both sides and slowly lower the hoist and transaxle jack
     
    Engine and transaxle from beneath the vehicle
     

  14.  

To install:

  1. Install or connect the following:

    Center member bracket (manual transmission) on the engine, if removed. Ensure that all insulators are correctly positioned on the brackets. Torque the insulator through-bolts to 32-41 ft. lbs. (43-55 Nm).
     

  2.  
  3. If equipped with manual transaxle, ensure that the distance between the center of the insulator through-bolt and the center member is 2.28-2.36 in. (58-60 Nm). Torque the through-bolt to 46-58 ft. lbs. (62-78 Nm).

    Engine. Torque the center member-to-frame bolts to 57-72 ft. lbs. (77-98 Nm).
     
    Alternator, air conditioning compressor, and power steering pump
     
    Drive belts
     
    Starter and intake manifold support
     
    Front exhaust pipe
     
    Driveshafts
     
    Cooling fans, radiator and recovery tank
     
    A/T control cable, if equipped
     
    Cruise control cable, if equipped
     
    Throttle cable
     
    Fuel lines
     
    Power steering hoses
     
    Oil cooler lines, if equipped
     
    Heater hoses
     
    All vacuum lines and wiring harness connectors
     
    Engine undercover
     
    Front wheels
     
    Battery and battery tray
     
    Air cleaner assembly and duct
     
    Negative battery cable
     
    Hood and hinges
     

  4.  
  5. Fill and bleed the cooling system.
  6.  
  7. Fill the engine with clean oil.
  8.  
  9. Fill the transaxle to the proper level.
  10.  
  11. Start the vehicle, check for leaks and repair if necessary.
  12.  

3.0L Engine

It is recommended the engine and transaxle be removed as a single unit. If necessary, the units may be separated after removal.


NOTE
The engine and transaxle assembly must be removed from the under side of the vehicle.

  1. Drain the cooling system.
  2.  
  3. Drain the engine oil.
  4.  
  5. Drain the transaxle fluid.
  6.  
  7. Properly relieve the fuel system pressure.
  8.  
  9. Before servicing the vehicle, refer to the Precautions section.
  10.  
  11. Remove or disconnect the following:

    Negative battery cable
     
    Hood
     
    Both front wheels
     
    Engine undercover
     
    All necessary vacuum hoses, fuel hoses and electrical connections that would interfere with engine removal
     
    Front exhaust tubes
     
    Ball joints
     
    Driveshafts
     
    Radiator and fans
     
    Drive belts
     
    Alternator, compressor and power steering oil pump from the engine compartment
     

  12.  
  13. Set a suitable transmission jack under the transaxle. Hoist the engine with a suitable engine slinger.

    Rear engine mounting
     
    Control cable
     
    Front engine mounting
     
    Center member and slowly lower the transmission jack
     

  14.  
  15. Remove the engine and the transaxle assembly from the engine as shown in the accompanying illustration.
  16.  


    Click image to see an enlarged view

    Fig. Remove the engine and the transaxle as an assembly from beneath the vehicle using a transaxle jack and a slinger


To install:

  1. Install or connect the following:

    Center member bracket (manual transmission) on the engine, if removed. Ensure that all insulators are correctly positioned on the brackets. Torque the insulator through-bolts to 72 ft. lbs. (98 Nm).
     
    Engine. Torque the center member-to-frame bolts to 57-72 ft. lbs. (77-98 Nm).
     
    Front engine mount. Torque the bolts to 72 ft. lbs. (98 Nm).
     
    Control cable
     
    Rear engine mount. Torque the bolts to 72 ft. lbs. (98 Nm) and remove the transaxle jack
     
    Alternator, air conditioning compressor, and power steering pump
     
    Radiator and fans
     
    Drive belts
     
    Driveshafts
     
    Ball joints
     
    Front exhaust tubes
     
    Vacuum hoses, electrical connectors, fuel hoses and wiring which was removed
     
    Engine undercover
     
    Front wheels
     
    Battery and battery tray
     
    Negative battery cable
     
    Hood and hinges
     

  2.  
  3. Fill and bleed the cooling system.
  4.  
  5. Fill the engine with clean oil.
  6.  
  7. Fill the transaxle to the proper level.
  8.  
  9. Start the vehicle, check for leaks and repair if necessary.
  10.  

It is recommended the engine and transaxle be removed as a single unit. If necessary, the units may be separated after removal.


NOTE
The engine and transaxle assembly must be removed from the under side of the vehicle.

  1. Drain the cooling system.
  2.  
  3. Drain the engine oil.
  4.  
  5. Drain the transaxle fluid.
  6.  
  7. Properly relieve the fuel system pressure.
  8.  
  9. Before servicing the vehicle, refer to the precautions in the beginning of this section.
  10.  
  11. Remove or disconnect the following:

    Negative battery cable
     
    Hood
     
    Both front wheels
     
    Engine undercover
     
    All necessary vacuum hoses, fuel hoses and electrical connections that would interfere with engine removal
     
    Front exhaust tubes
     
    Ball joints
     
    Driveshafts
     
    Radiator and fans
     
    Drive belts
     
    Alternator, compressor and power steering oil pump from the engine compartment
     

  12.  
  13. Set a suitable transmission jack under the transaxle. Hoist the engine with a suitable engine slinger.

    Rear engine mounting
     
    Control cable
     
    Front engine mounting
     
    Center member and slowly lower the transmission jack
     

  14.  
  15. Remove the engine and the transaxle assembly from the engine as shown in the accompanying illustration.

    Click image to see an enlarged view

    Fig. Remove the engine and the transaxle as an assembly from beneath the vehicle using a transaxle jack and a slinger

  16.  

To install:

  1. Install or connect the following:

    Center member bracket (manual transmission) on the engine, if removed. Ensure that all insulators are correctly positioned on the brackets. Torque the insulator through-bolts to 72 ft. lbs. (98 Nm)
     
    Engine. Torque the center member-to-frame bolts to 57-72 ft. lbs. (77-98 Nm)
     
    Front engine mount. Torque the bolts to 72 ft. lbs. (98 Nm)
     
    Control cable
     
    Rear engine mount. Torque the bolts to 72 ft. lbs. (98 Nm) and remove the transaxle jack
     
    Alternator, air conditioning compressor, and power steering pump
     
    Radiator and fans
     
    Drive belts
     
    Driveshafts
     
    Ball joints
     
    Front exhaust tubes
     
    Vacuum hoses, electrical connectors, fuel hoses and wiring which was removed
     
    Engine under cover
     
    Front wheels
     
    Battery and battery tray
     
    Negative battery cable
     
    Hood and hinges
     

  2.  
  3. Fill and bleed the cooling system.
  4.  
  5. Fill the engine with clean oil.
  6.  
  7. Fill the transaxle to the proper level.
  8.  
  9. Start the vehicle, check for leaks and repair if necessary.
  10.  

It is recommended the engine and transaxle be removed as a single unit. If necessary, the units may be separated after removal.


NOTE
The engine and transaxle assembly must be removed from the under side of the vehicle.

  1. Drain the cooling system.
  2.  
  3. Drain the engine oil.
  4.  
  5. Drain the transaxle fluid.
  6.  
  7. Properly relieve the fuel system pressure.
  8.  
  9. Before servicing the vehicle, refer to the Precautions section.
  10.  
  11. Remove or disconnect the following:

    Negative battery cable
     
    Hood
     
    Both front wheels
     
    Engine undercover
     
    All necessary vacuum hoses, fuel hoses and electrical connections that would interfere with engine removal
     
    Front exhaust tubes
     
    Ball joints
     
    Driveshafts
     
    Radiator and fans
     
    Drive belts
     
    Alternator, compressor and power steering oil pump from the engine compartment
     

  12.  
  13. Set a suitable transmission jack under the transaxle. Hoist the engine with a suitable engine slinger.

    Rear engine mounting
     
    Control cable
     
    Front engine mounting
     
    Center member and slowly lower the transmission jack
     

  14.  
  15. Remove the engine and the transaxle assembly from the engine as shown in the accompanying illustration.

    Click image to see an enlarged view

    Fig. Remove the engine and the transaxle as an assembly from beneath the vehicle using a transaxle jack and a slinger

  16.  

To install:

  1. Install or connect the following:

    Center member bracket (manual transmission) on the engine, if removed. Ensure that all insulators are correctly positioned on the brackets. Torque the insulator through-bolts to 72 ft. lbs. (98 Nm)
     
    Engine. Torque the center member-to-frame bolts to 57-72 ft. lbs. (77-98 Nm)
     
    Front engine mount. Torque the bolts to 72 ft. lbs. (98 Nm)
     
    Control cable
     
    Rear engine mount. Torque the bolts to 72 ft. lbs. (98 Nm) and remove the transaxle jack
     
    Alternator, air conditioning compressor, and power steering pump
     
    Radiator and fans
     
    Drive belts
     
    Driveshafts
     
    Ball joints
     
    Front exhaust tubes
     
    Vacuum hoses, electrical connectors, fuel hoses and wiring which was removed
     
    Engine under cover
     
    Front wheels
     
    Battery and battery tray
     
    Negative battery cable
     
    Hood and hinges
     

  2.  
  3. Fill and bleed the cooling system.
  4.  
  5. Fill the engine with clean oil.
  6.  
  7. Fill the transaxle to the proper level.
  8.  
  9. Start the vehicle, check for leaks and repair if necessary.
  10.  

3.5L Engines

It is recommended the engine and transaxle be removed as a single unit. If need be, the units may be separated after removal.


NOTE
The engine and transaxle assembly must be removed from the underside of the vehicle.

  1. Before servicing the vehicle, refer to the Precautions section.
  2.  
  3. Release the fuel system pressure.
  4.  
  5. Drain the cooling system.
  6.  
  7. Drain the engine oil.
  8.  
  9. Drain the automatic transaxle, if equipped.
  10.  
  11. Remove or disconnect the following:

    Negative battery cable
     
    Hood
     
    Engine undercover
     
    All vacuum hoses, fuel lines, wires and connectors; tag before disconnecting
     
    Front exhaust pipe from the manifold
     
    Ball joints from the steering knuckle
     
    Halfshafts
     
    Radiator and fans
     
    Drive belts
     
    Alternator
     
    A/C compressor. Position it aside with the lines attached. Do NOT disconnect the refrigerant lines.
     
    Power steering pump and position aside with the lines attached. Do NOT disconnect the fluid lines.
     

  12.  
  13. Place a suitable jack under the transaxle. Install engine slingers and a suitable engine hoist. Raise the engine for access to the left side engine mount.

    Left side engine mount
     
    Control and support rods from the transaxle, manual transaxle only
     
    Control cable from the transaxle, automatic transaxle only
     
    Right side engine mount
     
    Center member, then carefully and slowly lower the transmission jack
     

  14.  
  15. Lower the engine/transaxle assembly onto an engine stand.
    NOTE
    When lowering the engine out, guide it carefully to avoid hitting any other components.

  16.  

To install:

  1. Installation is the reverse of the removal procedure, noting the following points:
    1. Install the electronically controlled engine mount harness to the specifications shown in the accompanying figure.

      Click image to see an enlarged view

      Fig. For the electronically controlled engine mount harness, the proper length from A to B is 6.69 in. (170mm) and from C to D is 5.12 in. (130mm)

    2.  
    3. Make sure to connect all vacuum hoses, lines, and electrical connectors as tagged during removal.
    4.  
    5. Fill the cooling system.
    6.  
    7. Fill the engine with clean oil.
    8.  
    9. Start the vehicle, check for leaks and repair if necessary.
    10.  

  2.  

2wd
  1. Before servicing the vehicle, refer to the Precautions section.
  2.  
  3. Evacuate the A/C system.
  4.  
  5. Release the fuel system pressure.
  6.  
  7. Drain the engine oil.
  8.  
  9. Drain the cooling system.
  10.  
  11. Drain the transaxle fluid.
  12.  
  13. Remove or disconnect the following:

    Negative battery cable
     
    Hood
     
    Engine cover
     
    Battery cover
     
    Engine undercover
     
    Front wheels
     
    Wiper arm and cowl top cover
     
    Air cleaner assembly, including air ducts
     
    Fan, radiator shroud, radiator, reservoir tank and hoses
     
    Heater hose from the engine and plug to avoid leaks
     
    Ground wire from left hand cylinder head
     
    Positive battery cable from the vehicle and temporarily fasten it on the engine
     
    Battery
     
    Engine harness connector; tag before disconnecting
     
    A/C lines from the A/C compressor
     
    Body ground cables
     
    Brake booster vacuum hose
     
    Fuel feed and Evaporative Emission (EVAP) hoses. Plug the fuel lines to prevent fuel from leaking out.
     
    Power steering pump reservoir tank and pipes
     

  14.  
  15. Disconnect the connectors from the passenger compartment as follows:
    1. Remove the passenger side kick plate, dashboard side trim and glove box.
    2.  
    3. From the engine compartment, detach the connectors from the Transmission Control Module (TCM), and Engine Control Module (ECM).
    4.  
    5. Unfasten the wire harnesses, pull the harnesses out into the engine compartment, and then temporarily secure them to the engine. Cover all connectors with plastic or similar material to protect them.
    6.  

  16.  
  17. Remove or disconnect the following:

    Front exhaust pipe from the manifold
     
    Steering lower joint and release the steering shaft
     
    Propeller shaft from the transmission
     
    Shift control linkage from the gear selector. Secure it temporarily to the transmission, so it doesn-t drag or catch on any other components.
     
    Rear plate cover from upper oil pan
     
    Bolts securing the drive plate to the torque converter
     
    Bolts securing the transmission to the lower rear side of the oil pan
     
    Front stabilizer shaft
     
    Left and right tie rod ends from the steering knuckle
     
    Disconnect the lower strut from the lower control arms on the left and right sides
     
    Left and right control arms from the suspension crossmember
     

  18.  
  19. Position a suitable engine table or other suitable tool under the engine. Securely support the bottom of the suspension member and transmission before removing:

    Rear member mounting bolt
     
    Suspension member mounting bolt and nut
     

  20.  
  21. Carefully lower the jack, or raise the lift to remove the engine, transmission and suspension member assembly. Make sure that all lines, hoses, connectors etc. have been disconnected. If necessary, support the rear of the vehicle at the rear jacking point, as its center of gravity has changed with the engine removed.
  22.  
  23. Remove and components and separate the engine and transmission as necessary.
  24.  

To install:

  1. Installation is the reverse of the removal procedure, noting the following points:

    Tighten all engine mounts and related components to the specifications shown in the accompanying figure

    Click image to see an enlarged view

    Fig. Exploded view of the engine mounts and related components-G35 2WD



    Click image to see an enlarged view

    Fig. Rear member bolt torque sequence-G35 2WD with manual transmission



    Click image to see an enlarged view

    Fig. Rear member bolt torque sequence-G35 2WD with automatic transmission

     
    Tighten the rear member mounting bolts in sequence.
     
    When installing engine mounting brackets on cylinder block, tighten two upper bolts (-A- in the figure) first, then tighten two lower bolts (-B- in the figure).

    Click image to see an enlarged view

    Fig. Engine mount bolt torque sequence-G35 2WD

     
    Make sure to connect all vacuum hoses, lines, and electrical connectors as tagged during removal.
     
    Fill the cooling system.
     
    Fill the engine with clean oil.
     
    Fill the transmission to the proper level.
     
    Recharge the A/C system.
     

  2.  
  3. Start the vehicle, check for leaks and repair if necessary.
  4.  

AWD
  1. Before servicing the vehicle, refer to the Precautions section.
  2.  
  3. Evacuate the A/C system.
  4.  
  5. Release the fuel system pressure.
  6.  
  7. Drain the engine oil.
  8.  
  9. Drain the cooling system.
  10.  
  11. Drain the transaxle fluid.
  12.  
  13. Remove or disconnect the following:

    Negative battery cable
     
    Hood
     
    Engine cover
     
    Battery cover
     
    Engine undercover
     
    Front wheels
     
    Wiper arm and cowl top cover
     
    Air cleaner assembly, including air ducts
     
    Fan, radiator shroud, radiator, reservoir tank and hoses
     
    Heater hose from the engine and plug to avoid leaks
     
    Ground wire from left hand cylinder head
     
    Positive battery cable from the vehicle and temporarily fasten it on the engine
     
    Battery
     
    Engine harness connector; tag before disconnecting
     
    A/C lines from the A/C compressor
     
    Body ground cables
     
    Brake booster vacuum hose
     
    Fuel feed and Evaporative Emission (EVAP) hoses. Plug the fuel lines to prevent fuel from leaking out.
     
    Power steering pump reservoir tank and pipes
     

  14.  
  15. Disconnect the connectors from the passenger compartment as follows:
    1. Remove the passenger side kick plate, dashboard side trim and glove box.
    2.  
    3. From the engine compartment, detach the connectors from the Transmission Control Module (TCM), and Engine Control Module (ECM).
    4.  
    5. Unfasten the wire harnesses, pull the harnesses out into the engine compartment, and then temporarily secure them to the engine. Cover all connectors with plastic or similar material to protect them.
    6.  

  16.  
  17. Remove or disconnect the following:

    Front exhaust pipe from the manifold
     
    Steering lower joint and release the steering shaft
     
    Propeller shaft from the transmission
     
    Shift control linkage from the gear selector. Secure it temporarily to the transmission, so it doesn-t drag or catch on any other components.
     
    Rear plate cover from upper oil pan
     
    Bolts securing the drive plate to the torque converter
     
    Bolts securing the transmission to the lower rear side of the oil pan
     
    Left and right tie rod ends from the steering knuckle
     
    Disconnect the lower strut from the lower control arms on the left and right sides
     
    Left and right control arms from the suspension crossmember
     
    Left and right front halfshafts from steering knuckles
     

  18.  
  19. Position a suitable engine table or other suitable tool under the engine. Securely support the bottom of the suspension member and transmission before removing:

    Rear member mounting bolt
     
    Suspension member mounting bolt and nut
     

  20.  
  21. Carefully lower the jack, or raise the lift to remove the engine, transmission and suspension member assembly. Make sure that all lines, hoses, connectors etc. have been disconnected. If necessary, support the rear of the vehicle at the rear jacking point, as its center of gravity has changed with the engine removed.
  22.  
  23. Remove and components and separate the engine and transmission as necessary.
  24.  

To install:

  1. Installation is the reverse of the removal procedure, noting the following points:

    Tighten all engine mounts and related components to the specifications shown in the accompanying figure

    Click image to see an enlarged view

    Fig. Exploded view of the engine mounts and related components-G35 AWD

     
    When installing left engine mounting bracket on cylinder block, tighten two upper bolts (-A- in the figure) first, then tighten two lower bolts (-B- in the figure).

    Click image to see an enlarged view

    Fig. Engine mount bolt torque sequence, left side-G35 AWD

     
    The right engine mounting bracket comprises two pieces. Install right upper engine mounting bracket on cylinder block, tightening two upper bolts (-A- in the figure) first, then tightening two lower bolts (-B- in the figure). Make certain right lower engine mounting bracket is in full contact with the upper mounting bracket and the front final drive assembly before tightening bolts -D- and -E- in sequence.

    Click image to see an enlarged view

    Fig. Engine mount bolt torque sequence, right side-G35 AWD

     
    Make sure to connect all vacuum hoses, lines, and electrical connectors as tagged during removal.
     
    Fill the cooling system.
     
    Fill the engine with clean oil.
     
    Fill the transmission to the proper level.
     
    Recharge the A/C system.
     

  2.  
  3. Start the vehicle, check for leaks and repair if necessary.
  4.  

4.1L Engines
  1. Before servicing the vehicle, refer to the Precautions section.
  2.  
  3. Evacuate the A/C system.
  4.  
  5. Release the fuel system pressure.
  6.  
  7. Drain the engine oil.
  8.  
  9. Drain the cooling system.
  10.  
  11. Drain the transmission fluid.
  12.  
  13. Remove or disconnect the following:

    Negative battery cable
     
    Hood
     
    Engine undercover
     
    Transmission
     
    All necessary vacuum hoses, fuel hoses and electrical connections that would interfere with engine removal
     
    Front exhaust tubes
     
    Radiator and shroud
     
    Drive belts
     
    Power steering oil pump from the engine compartment
     

  14.  
  15. Attach engine slingers to the cylinder head and attach a suitable hoist to the slinger

    Engine mounting bolts from both sides and then slowly raise the engine
     
    Engine from the engine compartment
     

  16.  

To install:



Click image to see an enlarged view

Fig. Engine mounting and torque specifications-4.1L engines

  1. Install or connect the following:

    Engine. Torque the front mounting bolts to 41 ft. lbs. (55 Nm) and the rear mounting bolts to 21 ft. lbs. (28 Nm). Remove the engine supports
     
    Power steering pump
     
    Radiator and shroud
     
    Drive belts
     
    Front exhaust tubes
     
    Vacuum hoses, electrical connectors, fuel hoses and wiring
     
    Transmission
     
    Engine undercover
     
    Negative battery cable
     
    Hood
     

  2.  
  3. Fill the transmission to the proper level.
  4.  
  5. Fill and bleed the cooling system.
  6.  
  7. Fill the engine with clean oil.
  8.  
  9. Recharge the A/C system.
  10.  
  11. Start the vehicle, check for leaks and repair if necessary.
  12.  

  1. Before servicing the vehicle, refer to the precautions in the beginning of this section.
  2.  
  3. Evacuate the A/C system.
  4.  
  5. Release the fuel system pressure.
  6.  
  7. Drain the engine oil.
  8.  
  9. Drain the cooling system.
  10.  
  11. Drain the transaxle fluid.
  12.  
  13. Remove or disconnect the following:

    Negative battery cable
     
    Hood
     
    Engine under cover
     
    Transmission
     
    All necessary vacuum hoses, fuel hoses and electrical connections that would interfere with engine removal
     
    Front exhaust tubes
     
    Radiator and shroud
     
    Drive belts
     
    Power steering oil pump from the engine compartment
     

  14.  
  15. Attach engine slingers to the cylinder head and attach a suitable hoist to the slinger

    Engine mounting bolts from both sides and then slowly raise the engine
     
    Engine from the engine compartment
     

  16.  

To install:

Click image to see an enlarged view

Fig. Engine mounting and torque specifications-4.1L engines

  1. Install or connect the following:

    Engine. Torque the front mounting bolts to 41 ft. lbs. (55 Nm) and the rear mounting bolts to 21 ft. lbs. (28 Nm). Remove the engine supports
     
    Power steering pump
     
    Radiator and shroud
     
    Drive belts
     
    Front exhaust tubes
     
    Vacuum hoses, electrical connectors, fuel hoses and wiring
     
    Transmission
     
    Engine under cover
     
    Negative battery cable
     
    Hood
     

  2.  
  3. Fill the transaxle to the proper level.
  4.  
  5. Fill and bleed the cooling system.
  6.  
  7. Fill the engine with clean oil.
  8.  
  9. Recharge the A/C system.
  10.  
  11. Start the vehicle, check for leaks and repair if necessary.
  12.  

  1. Before servicing the vehicle, refer to the Precautions section.
  2.  
  3. Evacuate the A/C system.
  4.  
  5. Release the fuel system pressure.
  6.  
  7. Drain the engine oil.
  8.  
  9. Drain the cooling system.
  10.  
  11. Drain the transaxle fluid.
  12.  
  13. Remove or disconnect the following:

    Negative battery cable
     
    Hood
     
    Engine under cover
     
    Transmission
     
    All necessary vacuum hoses, fuel hoses and electrical connections that would interfere with engine removal
     
    Front exhaust tubes
     
    Radiator and shroud
     
    Drive belts
     
    Power steering oil pump from the engine compartment
     

  14.  
  15. Attach engine slingers to the cylinder head and attach a suitable hoist to the slinger

    Engine mounting bolts from both sides and then slowly raise the engine
     
    Engine from the engine compartment
     

  16.  

To install:

Click image to see an enlarged view

Fig. Engine mounting and torque specifications-4.1L engine

  1. Install or connect the following:

    Engine. Torque the front mounting bolts to 41 ft. lbs. (55 Nm) and the rear mounting bolts to 21 ft. lbs. (28 Nm). Remove the engine supports
     
    Power steering pump
     
    Radiator and shroud
     
    Drive belts
     
    Front exhaust tubes
     
    Vacuum hoses, electrical connectors, fuel hoses and wiring
     
    Transmission
     
    Engine under cover
     
    Negative battery cable
     
    Hood
     

  2.  
  3. Fill the transaxle to the proper level.
  4.  
  5. Fill and bleed the cooling system.
  6.  
  7. Fill the engine with clean oil.
  8.  
  9. Recharge the A/C system.
  10.  
  11. Start the vehicle, check for leaks and repair if necessary.
  12.  

4.5L Engines
  1. Before servicing the vehicle, refer to the Precautions section.
  2.  
  3. Evacuate the A/C system.
  4.  
  5. Release the fuel system pressure.
  6.  
  7. Drain the engine oil.
  8.  
  9. Drain the cooling system.
  10.  
  11. Drain the transmission fluid.
  12.  
  13. Remove or disconnect the following:

    Battery cables
     
    Hood
     
    Engine appearance cover
     
    Engine undercover
     
    Tower bar
     
    Battery
     
    Air duct and air cleaner
     
    Drive belts
     
    Accelerator cable
     
    Cooling fan and tubes
     
    Radiator hoses
     
    Radiator and shroud
     
    Engine harnesses from both sides
     
    Heater hoses
     
    Exhaust manifold cover
     
    Vacuum hoses to body
     
    Cooling reservoir tank
     
    A/C compressor
     
    Power steering reservoir and wire aside
     
    Power steering oil pump from the engine compartment
     
    Automatic transmission cooler line
     
    Front exhaust tubes
     
    Steering shaft lower joint
     
    Front cross bar
     
    Driveshaft
     
    Transmission
     
    All necessary vacuum hoses, fuel hoses and electrical connections that would interfere with engine removal
     

  14.  
  15. Attach engine slingers to the cylinder head and attach a suitable hoist to the slinger

    Engine mounting bolts from both sides and then slowly raise the engine
     
    Engine from the engine compartment
     

  16.  

To install:



Click image to see an enlarged view

Fig. Engine mounting and torque specifications-4.5L engines M45 and Q45

  1. Installation is the reverse of the removal procedure. See the illustration for front cross bar and engine mounting torque specifications.
  2.  
  3. Fill the transmission to the proper level.
  4.  
  5. Fill and bleed the cooling system.
  6.  
  7. Fill the engine with clean oil.
  8.  
  9. Recharge the A/C system.
  10.  
  11. Start the vehicle, check for leaks and repair if necessary.
  12.  

  1. Before servicing the vehicle, refer to the Precautions section.
  2.  
  3. Evacuate the A/C system.
  4.  
  5. Release the fuel system pressure.
  6.  
  7. Drain the engine oil.
  8.  
  9. Drain the cooling system.
  10.  
  11. Drain the transmission fluid.
  12.  
  13. Remove or disconnect the following:

    Battery cables
     
    Hood
     
    Engine appearance cover
     
    Engine undercover
     
    Tower bar
     
    Battery
     
    Air duct and air cleaner
     
    Drive belts
     
    Accelerator cable
     
    Cooling fan and tubes
     
    Radiator hoses
     
    Radiator and shroud
     
    Engine harnesses from both sides
     
    Heater hoses
     
    Exhaust manifold cover
     
    Vacuum hoses to body
     
    Cooling reservoir tank
     
    A/C compressor
     
    Power steering reservoir and wire aside
     
    Power steering oil pump from the engine compartment
     
    Automatic transmission cooler line
     
    Front exhaust tubes
     
    Steering shaft lower joint
     
    Front cross bar
     
    Driveshaft
     
    Transmission
     
    All necessary vacuum hoses, fuel hoses and electrical connections that would interfere with engine removal
     

  14.  
  15. Attach engine slingers to the cylinder head and attach a suitable hoist to the slinger

    Engine mounting bolts from both sides and then slowly raise the engine
     
    Engine from the engine compartment
     

  16.  

To install:

Click image to see an enlarged view

Fig. Engine mounting and torque specifications-2004 M45 and 2002-2005 Q45

  1. Installation is the reverse of the removal procedure. See the illustration for front cross bar and engine mounting torque specifications.
  2.  
  3. Fill the transmission to the proper level.
  4.  
  5. Fill and bleed the cooling system.
  6.  
  7. Fill the engine with clean oil.
  8.  
  9. Recharge the A/C system.
  10.  
  11. Start the vehicle, check for leaks and repair if necessary.
  12.  

 
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