Dodge RAM 1500 1998 Owner's Manual page 2216

DR
TRANSFER CASE - NV244 GENII (Continued)
IDENTIFICATION
A circular ID tag is attached to the rear case of
each transfer case (Fig. 1). The ID tag provides the
transfer case model number, assembly number, serial
number, and low range ratio.
The transfer case serial number also represents
the date of build.
OPERATION
The input gear is splined to the transmission out-
put shaft. The input gear drives the mainshaft
through the planetary assembly and range sleeve.
The front output shaft is operated by a drive chain
that connects the shaft to a drive sprocket on the
mainshaft. The drive sprocket is splined to a differ-
ential assembly. Depending on the position of the
mode fork and sleeve, the front output shaft is driven
directly by the mainshaft or through the differential.
The mode fork operates the mode sleeve and hub.
The sleeve and hub are not equipped with a synchro-
nizer mechanism for shifting.
DIAGNOSIS AND TESTING - TRANSFER CASE - NV244
CONDITION
Transfer case difficult to shift or will
not shift into desired range.
Transfer case noisy in all drive
modes.
Transfer case noisy while in, or
jumps out of, 4LO.
1 - I.D. TAG
2 - FILL PLUG
3 - DRAIN PLUG
DIAGNOSIS CHART
POSSIBLE CAUSE
1) Transfer case electronically
controlled shift system malfunction.
2) Insufficient or incorrect lubricant.
3) Internal transfer case
components binding, worn, or
damaged.
1) Insufficient or incorrect lubricant.
2) Internal transfer case
components binding, worn, or
damaged.
1) Transfer case not completely
engaged in 4LO position.
2) Range fork damaged, inserts
worn, or fork is binding on the shift
rail.
3) Low range gear worn or
damaged.
TRANSFER CASE - NV244 GENII
Fig. 1 Fill/Drain Plug And I.D. Tag Locations
1) Verify proper operation per the
appropriate diagnostic manual.
2) Drain and refill transfer case with
the correct quantity of Mopar ATF
+4, Automatic Transmission Fluid.
3) Repair or replace components as
necessary.
1) Drain and refill transfer case with
the correct quantity of Mopar ATF
+4, Automatic Transmission Fluid.
2) Repair or replace components as
necessary.
1) While rolling 2-3 MPH and the
transmission in NEUTRAL, or the
clutch depressed on vehicles
equipped with a manual
transmission, shift the transfer case
to the AWD or 4HI position, and
then back into the 4LO position.
2) Repair or replace components as
necessary.
3) Repair or replace components as
necessary.
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CORRECTION