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Home >> Jeep >> 2003 >> Grand Cherokee 4WD V8-4.7L >> Repair and Diagnosis >> Maintenance >> Service Intervals >> Severe Service >> 150000 MI or 240000 KM

150000 MI or 240000 KM

Lubricate
    Ball Joint
      Lubricate steering and suspension ball joints.
Inspect
    Positive Crankcase Ventilation Valve
      Inspect the PCV valve and replace as necessary. This maintenance is recommended to the customer, but is not required to maintain the warranty on the PCV valve.
    Exhaust System
    Drive Belt
      Inspect the drive belt and replace as necessary. This maintenance is not required if the belt was previously replaced. Inspect the drive belt and replace as needed. Not required if the drive belt was previously replaced.
    Cooling System
      Inspect coolant level, hoses and clamps.
    Body and Frame
      After completion of 4WD operation, the underside of the vehicle should be thoroughly inspected. Examine threaded fasteners for looseness.
    Air Filter Element
      Inspect engine air filter element, replace if necessary.
Replace
    Spark Plug
    Oil Filter, Engine
    Fluid Filter - A/T
      Replace main sump filter.
    Fluid - Transfer Case
      Quadra-Trac only
    Fluid - A/T
    Engine Oil
Rotate
    Tires