Lexus Car ES, IS, LS 1998-06

Engine 2

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Removal & Installation



4.7L Engine
  1. Before servicing the vehicle, please familiarize yourself with safety procedures.
  2.  
  3. Drain the cooling system.
  4.  
  5. Drain the engine oil.
  6.  
  7. Drain the power steering system.
  8.  
  9. Properly relieve the fuel system pressure.
  10.  
  11. Recover the A/C refrigerant.
  12.  
  13. Remove or disconnect the following:

    Negative battery cable
     
    Front fascia
     
    Exhaust crossover pipe
     
    Engine ground straps
     
    Crankshaft Position (CKP) sensor
     
    Structural collar
     
    Starter
     
    Left and right inner fender liners
     
    Headlamp mounting module

    Click image to see an enlarged view

    Fig. Exploded view of the front fascia panel-2000-01 Grand Cherokee



    Click image to see an enlarged view

    Fig. Exploded view of the headlamp module assembly-2000-01 Grand Cherokee

     



    Air intake resonator
     
    Accelerator cable
     
    Cruise control cable
     
    Crankcase breather tubes
     
    Accessory drive belt
     
    A/C compressor
     
    Cooling fan assemblies
     
    Radiator hoses
     
    Transmission oil cooler lines
     
    Radiator
     
    A/C condenser
     
    Alternator
     
    Heater hoses
     
    Throttle Position (TP) sensor connector
     
    Intake Air Temperature (IAT) sensor connector
     
    Fuel injector harness connectors
     
    Engine Coolant Temperature (ECT) sensor connector
     
    Idle Air Control (IAC) valve connector
     
    Manifold Absolute Pressure (MAP) sensor connector
     
    Ignition coils
     
    Fuel line
     
    Power steering pump
     
    Oil fill tube
     
    Oil dipstick tube
     
    Heated Oxygen (HO 2 S) sensor connectors
     
    Engine oil filter
     
    Exhaust crossover pipe
     
    Structural cover
     
    Rubber splash shield
     
    Starter motor
     
    Crankshaft Position (CKP) sensor connector
     
    Camshaft Position (CMP) sensor connector
     
    Torque converter
     
    Engine ground straps
     
    Left and right motor mounts
     
    Transmission flange bolts
     

  14.  
  15. Install Engine Lifting Fixture 8347 as shown.

    Click image to see an enlarged view

    Fig. Engine Lifting Fixture-4.7L engine

  16.  
  17. Place a support stand under the transmission.
  18.  
  19. Lift the engine out of the vehicle.
  20.  

To install:

  1. Lower the engine in to the vehicle and position to the transmission.
  2.  
  3. Remove the engine lifting fixture.
  4.  
  5. Install or connect the following:

    Transmission flange bolts. Tighten the bolts to 50 ft. lbs. (68 Nm).
     
    Left and right motor mounts. Tighten the bolts to 45 ft. lbs. (61 Nm).
     
    Engine ground straps
     
    Torque converter. Tighten the bolts to 23 ft. lbs. (31 Nm).
     
    CMP sensor connector
     
    CKP sensor connector
     
    Starter motor
     
    Rubber splash shield
     

  6.  
  7. Install the structural cover as follows:
    1. Install all the bolts finger-tight.
    2.  
    3. Hold the cover tightly against the transmission and the engine.
    4.  
    5. Tighten the bolts in sequence to 40 ft. lbs. (54 Nm).

      Click image to see an enlarged view

      Fig. Structural cover torque sequence-4.7L engine

    6.  

  8.  
  9. Install or connect the following:

    Exhaust crossover pipe
     
    Engine oil filter
     
    HO 2 S sensor connectors
     
    Oil dipstick tube
     
    Oil fill tube
     
    Power steering pump
     
    Fuel line
     
    Ignition coils
     
    MAP sensor connector
     
    IAC valve connector
     
    ECT sensor connector
     
    Fuel injector harness connectors
     
    IAT sensor connector
     
    TP sensor connector
     
    Heater hoses
     
    Alternator
     
    A/C condenser
     
    Radiator
     
    Transmission oil cooler lines
     
    Radiator hoses
     
    Cooling fan assemblies
     
    A/C compressor
     
    Accessory drive belt
     
    Crankcase breather tubes
     
    Cruise control cable
     
    Accelerator cable
     
    Air intake resonator
     
    Headlamp mounting module
     
    Left and right inner fender liners
     
    Front fascia
     
    Negative battery cable
     

  10.  
  11. Fill and bleed the cooling system.
  12.  
  13. Fill and bleed the power steering system.

    Fill the engine with clean oil.
     

  14.  
  15. Recharge the A/C system.
  16.  
  17. Start the engine, check for leaks and repair if necessary.
  18.  

 
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