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Transmission and transfer case » NV242 transfer case
Diagnosis and testing

NV242 DIAGNOSIS

DIAGNOSIS CHART

CONDITION

POSSIBLE CAUSE

CORRECTION

Transfer case difficult to shift or will not shift into desired range.
  1. Transfer case shift linkage binding.
  2.  Insufficient or incorrect lubricant.
  3.  Internal transfer case components binding, worn, or damaged.
  1.  Repair or replace linkage as necessary.
  2. Drain and refill transfer case with the correct type and quantity of lubricant.
  3.  Repair or replace components as necessary.
Transfer case noisy in all drive modes.
  1. Insufficient or incorrect lubricant.
  1.  Drain and refill transfer case with the correct type and quantity of lubricant.
Lubricant leaking from transfer case seals or vent.
  1. Transfer case overfilled.
  2.  Transfer case vent closed or restricted.
  3.  Transfer case seals damaged or installed incorrectly.
  1.  Drain lubricant to the correct level.
  2.  Clean or replace vent as necessary.
  3.  Replace suspect seal.
Transfer case will not shift through 4X4 part time range (light remains on)
  1. Incomplete shift due to drivetrain torque load.
  2.  Incorrect tire pressure.
  3.  Excessive Tire wear.
  4.  Excessive vehicle loading.
  1.  Momentarily release the accelerator pedal to complete the shift.
  2. Correct tire pressure as necessary.
  3. Correct tire condition as necessary.
  4. Correct as necessary
    More about «NV242 transfer case»:

    Description and operation

    Diagnosis and testing

    Removal and installation

    Disassembly and assembly

    Cleaning and inspection

    Adjustments

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