Lubricant And Fill Level Description; Nv231 Diagnosis Chart; Fill/Drain Plug Locations; Nv231 Transfer Case - Jeep 200 Cherokee Service Manual

XJ
DESCRIPTION AND OPERATION (Continued)
hub. The sleeve and hub are not equipped with a
synchronizer mechanism for shifting.
LUBRICANT AND FILL LEVEL
DESCRIPTION
Recommended lubricant for the NV231 transfer
case is Mopar Dexron II, or ATF Plus 3, type 7176.
Approximate lubricant fill capacity is 1.2 liters (2.5
pints).
The fill and drain plugs are both in the rear case
(Fig. 2). Correct fill level is to the bottom edge of the
fill plug hole. Be sure the vehicle is level to ensure
an accurate fluid level check.

DIAGNOSIS AND TESTING

NV231 DIAGNOSIS
Condition
Transfer case difficult to shift or will
not shift into desired range.
Transfer case noisy in all drive
modes.
1 – I. D. TAG
2 – FILL PLUG
3 – DRAIN PLUG
DIAGNOSIS CHART
Possible Cause
1) Vehicle speed to great to permit
shifting.
2) If vehicle was operated for an
extended period in 4H mode on dry
surface, driveline torque load may
cause difficulty.
3) Transfer case shift linkage
binding.
4) Insufficient or incorrect lubricant.
5) Internal transfer case
components binding, worn, or
damaged.
1) Insufficient or incorrect lubricant.

NV231 TRANSFER CASE

Fig. 2 Fill/Drain Plug Locations
Correction
1) Slow vehicle and shift into
desired range.
2) Stop vehicle and shift transfer
case to Neutral position. Transfer
case can then be shifted to the
desired mode.
3) Repair or replace linkage as
necessary.
4) Drain and refill transfer case with
the correct type and quantity of
lubricant.
5) Repair or replace components as
necessary.
1) Drain and refill transfer case with
the correct type and quantity of
lubricant.
21 - 347