Chrysler Vehicle User Manual page 1367

21 - 230 TRANSFER CASE - NV241
TRANSFER CASE - NV241 (Continued)
Fig. 2 Transfer Case Identification Tag and Fill/Drain
1 - IDENTIFICATION TAG
2 - FILL PLUG
3 - DRAIN PLUG
The 4H and 4LO ranges are for off road use only.
They are not for use on hard surface roads. The only
exception being when the road surface is covered by
ice and snow.
The low range reduction gear system is operative
in 4LO range only. This range is for extra pulling
power in off road situations. Low range reduction
ratio is 4.0:1.
Condition
Transfer Case difficult to shift or will
not shift into desired range.
Plugs
DIAGNOSIS CHART
1) Vehicle speed too great to permit
shifting.
2) If vehicle was operated for an
extended period in 4H on a dry
paved surface, the driveline torque
load may be causing a bind.
3) Transfer case external shift
linkage binding.
4) Insufficient or incorrect lubricant.
5) Internal components binding,
worn, or damaged.
SHIFT MECHANISM
The transfer case is operated by an adjustable floor
mounted shift linkage. The transfer case shift lever
is directly attached to the shift sector. The sector
operates the range and mode forks within the trans-
fer case.
A straight line shift pattern is used with a NEU-
TRAL detent. Lever range positions are imprinted in
the shift knob.
SHIFTING
The vehicle must have the transmission placed in
NEUTRAL, or the clutch depressed in the case of a
manual transmission, and be moving less than 2-3
MPH when shifting into the 4L operating range.
DIAGNOSIS AND TESTING - TRANSFER CASE
Before beginning repair on a suspected transfer
case malfunction, check all other driveline compo-
nents beforehand.
The actual cause of a problem may be related to
such items as: front hubs, axles, propeller shafts,
wheels and tires, transmission, or clutch instead. If
all other driveline components are in good condition
and operating properly, refer to the Diagnosis Chart
for further information.
Possible Cause Correction
1) Stop vehicle and shift into
desired range. Or, reduce speed to
below 3-4 km/h (2-3 mph) before
attempting the shift.
2) Stop vehicle and shift the
transmission into neutral. Shift the
transfer case to 2H and operate
vehicle in 2H on dry paved
surfaces.
3) Lubricate, repair, or replace
linkage bushings, or tighten loose
components as necessary.
4) Drain and refill to edge of fill hole
with Mopar ATF +4, type 9602,
Automatic Transmission fluid.
5) Disassemble the transfer case
and replace worn or damaged
components as necessary.
TJ