Your Vehicle: 2009 Nissan-Datsun Altima V6-3.5L (VQ35DE)
 
Vehicle » Engine, Cooling and Exhaust » Engine » Service and Repair  
 
 
  Service and Repair  
 

ENGINE ASSEMBLY

Removal and Installation

  

WARNING:

  • Place chocks at front and back of rear wheels.
  • For engines not equipped with engine slingers, attach proper slingers and bolts as described in the NISSAN Parts Catalog.

CAUTION:

  • Do not start working until exhaust system and coolant are cool.
  • If items or work required are not covered by the engine main body section, follow the applicable procedures.
  • Use the correct supporting points for lifting and jacking. Refer to See: Maintenance\Vehicle Lifting\Service and Repair\Garage Jack and Safety Stand.
  • In removing the drive shafts, be careful not to damage any transaxle grease seals.
  • Before separating the engine and transaxle, remove the crankshaft position sensor (POS).
  • Do not damage the edge of the crankshaft position sensor (POS) or the ring gear teeth.

REMOVAL

  1. Release fuel pressure. Refer to See: Fuel Pressure\Testing and Inspection.
  2. Drain coolant. Refer to See: Cooling System\Coolant\Service and Repair.
  3. Drain power steering fluid. Refer to See: Maintenance\Fluids\Power Steering Fluid\Service and Repair\Draining.
  4. Drain transaxle fluid. Refer to See: Maintenance\Fluids\Fluid - M/T\Service and Repair\Draining (M/T), See: Maintenance\Fluids\Fluid - CVT\Service and Repair\CVT RE0F09B (CVT).
  5. Drain clutch fluid (M/T). Refer to See: Transmission and Drivetrain\Clutch\Clutch Hydraulic System\Service and Repair.
  6. Remove hood assembly. Refer to See: Body and Frame\Doors, Hood and Trunk\Hood\Service and Repair\Coupe.
  7. Remove the engine cover, and the engine under cover using power tool.
  8. Remove air intake duct and air cleaner case assembly with mass air flow sensor. Refer to See: Air Cleaner Fresh Air Duct/Hose\Service and Repair.
  9. Remove battery and tray. Refer to See: Starting and Charging\Battery\Service and Repair\Removal and Replacement\Coupe (Coupe models) or See: Starting and Charging\Battery\Service and Repair\Removal and Replacement\Sedan (Sedan models).
  10. Remove CVT control unit if equipped.
  11. Remove cowl top. Refer to See: Body and Frame\Cowl\Cowl Moulding / Trim\Service and Repair\Coupe.
  12. Remove strut bar using power tools. Refer to See: Steering and Suspension\Suspension\Service and Repair\Front Suspension Assembly\Exploded View.
  13. Remove IPDM E/R.
  14. Remove the following parts:
    • EVAP vacuum hose
    • Brake booster vacuum hose
    • Heater hoses (engine side)
  1. Disconnect the clutch operating cylinder fluid line (M/T only). Refer to See: Transmission and Drivetrain\Clutch\Hydraulic Hose\Service and Repair\Exploded View.
  2. Disconnect transaxle shift control cables.
  3. Remove upper and lower radiator hoses.
  4. Remove power steering reservoir.
  5. Disconnect fuel hose quick connection at vehicle piping side. Refer to See: Powertrain Management\Fuel Delivery and Air Induction\Fuel Rail\Service and Repair.
  6. Remove engine mount stay.
  7. Remove RH upper engine mount insulator.
  8. Remove LH insulator nut.
  9. Remove the front drive shafts. Refer to See: Transmission and Drivetrain\Drive Axles, Bearings and Joints\Axle Shaft Assembly\Service and Repair\Removal and Installation (Left Side) and See: Transmission and Drivetrain\Drive Axles, Bearings and Joints\Axle Shaft Assembly\Service and Repair\Removal and Installation (Right Side).
  10. Remove the front exhaust tube using power tools. Refer to See: Exhaust System\Service and Repair\Exploded View.
  11. Remove the cooling fan assembly. Refer to See: Cooling System\Radiator Cooling Fan\Service and Repair.
  12. Discharge and recover the R134a refrigerant. Refer to See: Heating and Air Conditioning\Service and Repair\Refrigeration System.
  13. Remove the A/C compressor using power tools. Refer to See: Heating and Air Conditioning\Compressor HVAC\Service and Repair.

  

  1. Install engine slingers into front of LH cylinder head and rear of RH cylinder head.
    • (A): RH cylinder head

  

  • (B): LH cylinder head
  1. Remove rear cover plate.
  2. Remove the torque converter bolts (CVT models).
  3. Position a suitable support table under suspension member and engine assembly.
  4. Disconnect the LH transaxle mount and the RH engine mount.
  5. For additional safety, secure the engine in position with suitable tool.
  6. Remove suspension member bolts. Refer to See: Steering and Suspension\Suspension\Service and Repair\Front Suspension Assembly\Exploded View.
  7. Carefully lower the engine, transaxle assembly and suspension member using Tool, avoiding interference with the vehicle body.

CAUTION:

  • Before and during this procedure, always check if any harnesses are left connected.
  • Avoid any damage to, or any oil/grease smearing or spills onto the engine mounting insulators.

Tool number : KV101J0010 (J-47242)

  1. Remove the starter motor. Refer to See: Starting and Charging\Starting System\Starter Motor\Service and Repair\M/T Models.
  2. Remove the crankshaft position sensor (POS).
  3. Remove engine and transaxle harness.
  4. Separate the engine and transaxle and mount the engine on a suitable engine stand.
  5. Drain engine oil.

INSTALLATION
Installation is in the reverse order of removal.

NOTE:
Tighten transmission bolts to specification. Refer to See: Transmission and Drivetrain\Manual Transmission/Transaxle\Service and Repair\Removal and Replacement\Transaxle Assembly\Removal And Installation (M/T), See: Transmission and Drivetrain\Continuously Variable Transmission/Transaxle\Service and Repair\CVT RE0F09B\Transaxle Assembly\Removal And Installation (CVT).

Inspection AFTER INSTALLATION

  • Before starting engine, check the levels of engine coolant, engine oil and working fluid. If less than required quantity, fill to the specified level.
  • 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 leakage at connection points.
  • Start engine. With engine speed increased, check again for fuel leakage at connection points.
  • Run engine to check for unusual noise and vibration.
  • Warm up engine thoroughly to make sure there is no leakage of engine coolant, engine oil, working fluid, fuel and exhaust gas.
  • Bleed air from passages in pipes and tubes of applicable lines, such as in cooling system.
  • After cooling down engine, again check amounts of engine coolant, engine oil and working fluid. Refill to specified level, if necessary.
  • Summary of the Inspection items: