Removal and Installation
ENGINE ASSEMBLY
2WD : Removal and Installation
WARNING:
- Situate the vehicle on a flat and solid surface.
- Place chocks at front and back of rear wheels.
- For engines not equipped with engine slingers, attach proper slingers and bolts described in PARTS
CATALOG.
CAUTION:
- Always work safely.
- Do not start work until the engine and exhaust system are cooled completely.
- Refer to the applicable sections for warnings, cautions, notes, and instructions if necessary procedures are not included in the engine section.
Revision: March 20122013 Infiniti JX
- For supporting, lifting and jacking points, refer to "2-Pole Lift" 2-Pole Lift
Safety Stand".
- Always use the support point specified for lifting.
- Support the vehicle at the rear axle jacking point with transmission jack or similar tool before removing the engine in preparation for the backward shift of the center of gravity.
NOTE:
When removing components such as hoses, tubes/lines, etc., cap or plug openings to prevent fluid from spilling.
REMOVAL
Outline
Remove the engine and transaxle with the front suspension member as a unit. Separate the engine from the transaxle and remove from the front suspension member.
Preparation
1.Release fuel pressure. Refer to "Work Procedure" Testing and Inspection.
2.Drain engine coolant. Refer to "Changing Engine Coolant" Service and Repair.
CAUTION:
- Perform this step when the engine is cold.
- Do not allow the coolant to contact the drive belts.
3.Remove the engine under cover. Refer to "Removal and Installation" Removal and Installation.
4.Remove the front road wheels and tires. Refer to "Adjustment" Service and Repair.
5.Remove the fender protector side covers (RH and LH): Refer to "FENDER PROTECTOR : Removal and Installation" Removal and Installation.
6.Remove the front combination lamps (RH and LH). Refer to "Removal and Installation" Removal and Installation.
7.Remove the hood lock switch assembly. Refer to "HOOD LOCK CONTROL CABLE : Removal and Installation" Service and Repair.
8.Remove the upper fascia support. Refer to "Exploded View" Exploded View.
Engine Room
1.Remove the air duct (inlet), air cleaner cases (upper and lower) with mass air flow sensor and air duct assembly. Refer to "Removal and Installation" Removal and Installation.
2.Remove the engine room cover. Refer to "Removal and Installation" Exploded View.
3.Drain the power steering fluid. Refer to "Draining and Refilling" Removal and Replacement.
4.Disconnect engine room harness at the CVT and ECM connectors.
CAUTION:
Protect the harness connector with plastic bags or suitable covering to help prevent damage and intrusion of foreign materials into the connectors.
5.Remove the battery and battery tray. Refer to "Removal and Installation" Removal and Installation.
6.Remove battery bracket with ECM and CVT module.
7.Disconnect the brake fluid reservoir from the lower cowl panel and position aside.
8.Disconnect the fuse relay box from the lower cowl panel and position aside.
9.Remove the cowl top extension and cowl top. Refer to "Removal and Installation" Removal and Installation.
10.Remove the front wiper drive assembly. Refer to "Removal and Installation" Removal and Installation.
11.Remove the lower cowl panel. Refer to "Removal and Installation" Removal and Installation.
12.Disconnect heater hoses. Refer to "Removal and Installation" Service and Repair.
13.Remove engine cooling fan shroud and motor assembly. Refer to "Removal and Installation" Removal and Installation.
14.Remove upper and lower radiator hoses. Refer to "Removal and Installation" Removal and Installation.
15.Remove the air conditioning condenser. Refer to "Removal and Installation" Removal and Installation.
16.Remove the radiator. Refer to "Removal and Installation" Removal and Installation.
17.Remove EVAP hose. Refer to "ENGINE CONTROL SYSTEM : Component Parts Location" Engine Control System.
18.Disconnect fuel feed hose quick connector at fuel tube side. Refer to "Exploded View" Exploded View.
19.Disconnect transaxle shift control cable at transaxle side. Refer to "Exploded View" Exploded View.
20.Disconnect brake booster vacuum hose at brake booster. Refer to "Exploded View" Exploded View.
Revision: March 20122013 Infiniti JX
21.Remove harness ground cable.
22.Disconnect low pressure hose from steering pump. Refer to "Removal and Installation" Removal and Replacement.
23.Disconnect high pressure piping from steering pump. Refer to "Removal and Installation" Removal and Replacement.
24.Disconnect the wiring harness from the distribution/fuse block.
25.Disconnect the CVT fluid cooler hoses from the CVT.
26.Remove the E-PSF cover. Refer to "Removal and Installation" Removal and Installation.
27.Remove the upper RH upper torque rod.
28.Remove engine mounting insulator (RH) three upper nuts.
Vehicle Underbody
1.Remove exhaust front tube. Refer to "Exploded View" Exploded View.
2.Disconnect steering lower joint at power steering gear assembly and release steering lower shaft. Refer to
"Exploded View" Exploded View.
3.Disconnect front stabilizer connecting rod. Refer to "Exploded View" Exploded View.
4.Remove front brake caliper assembles with piping connected and position them aside. Refer to "BRAKE CALIPER ASSEMBLY : Removal and Installation" Removal and Installation.
5.Remove rear plate cover from oil pan (upper). Then remove nuts attaching the drive plate to the torque converter. Refer to "Disassembly and Assembly" Disassembly and Assembly.
6.Remove crankshaft position sensor (POS). Refer to "Exploded View" Service and Repair.
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.
Removal
1.Use suitable tool to securely support bottom of front suspension member.
CAUTION:
Put a piece of wood or something similar as the supporting surface to secure a completely stable condition.
2.Remove front suspension member mounting nuts and bolts. Refer to "Exploded View" Exploded View.
3.Carefully lower table to remove the engine, the transaxle and the front suspension member. When performing work, observe the following caution:
CAUTION:
- Confirm there is no interference with the vehicle.
- Repeatedly check to ensure all harnesses are disconnected before and during engine removal.
- Check all connection points have been disconnected.
- Keep in mind the center of vehicle gravity changes. If necessary, use jack(s) to support the vehicle at rear jacking point(s) to prevent it from falling off the lift.
Separation
Revision: March 20122013 Infiniti JX
1.Install engine slingers into front of cylinder head (bank 1) (3) and rear of cylinder head (bank 2) (2).
2.Disconnect vacuum hose from front engine mounting insulator.
3.Remove CVT fluid level indicator and CVT charging pipe. Refer to "Exploded View" Exploded View.
4.Remove starter. Refer to "Removal and Installation" Removal and Installation.
5.Remove exhaust manifold and three way catalyst (RH). Refer to "Removal and Installation (LH)" Removal and Installation (LH).
6.Remove front drive shaft (RH). Refer to "Removal and Installation (Right Side)" Removal and Installation Left Side.
7.Remove rear torque rod through bolt.
8.Remove engine mounting insulator (rear).
9.Remove transaxle to engine bolts.
10.Separate engine and transaxle assembly.
11.Lift the engine from the front suspension member.
CAUTION:
- Repeatedly check to ensure all harnesses are disconnected before and during engine lifting.
- Avoid spilling oil or grease onto the engine mounting insulators to prevent damage to engine mounting insulators.
INSTALLATION
Installation is in the reverse order of removal.
CAUTION:
- Do not damage the engine mounting insulator. Do not spill oil on the engine mounting insulator.
- Check all mounting insulators are seated properly, then tighten nuts and bolts.
INSPECTION AFTER INSTALLATION
- Before starting engine, check oil/fluid levels including engine coolant and engine oil. If there is 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.
NOTE:
If hydraulic pressure inside timing chain tensioner drops after removal and installation, slack in the guide may generate a pounding noise during and just after engine start. However, this is normal. Noise will stop after hydraulic pressure rises.
- Warm up engine thoroughly to make sure there is no leakage of fuel, exhaust gas, or any oils/fluids including engine oil and engine coolant.
Revision: March 20122013 Infiniti JX
- Bleed air from passages in lines and hoses, such as in cooling system.
- After cooling down engine, again check oil/fluid levels including engine oil and engine coolant. Refill to specified level, if necessary.
- Summary of the inspection items:
