transmission DODGE RAM 2002 Service Repair Manual
[x] Cancel search | Manufacturer: DODGE, Model Year: 2002, Model line: RAM, Model: DODGE RAM 2002Pages: 2255, PDF Size: 62.07 MB
Page 1921 of 2255
DIAGNOSIS CHART
Condition Possible Cause Correction
Transfer Case difficult to shift or will
not shift into desired range.1) Vehicle speed too great to permit
shifting.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) If vehicle was operated for an
extended period in 4H on a dry
paved surface, the driveline torque
load may be causing a bind.
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) Transfer case external shift
linkage binding.3) Lubricate, repair, or replace
linkage bushings, or tighten loose
components as necessary.
4) Insufficient or incorrect lubricant. 4) Drain and refill to edge of fill hole
with MoparTATF +4, type 9602,
Automatic Transmission fluid.
5) Internal components binding,
worn, or damaged.5) Disassemble the transfer case
and replace worn or damaged
components as necessary.
Transfer Case noisy in all operating
ranges.1) Insufficient or incorrect lubricant. 1) Drain and refill to edge of fill hole
with MoparTATF +4, type 9602,
Automatic Transmission fluid.
Noisy in, or jumps out of, four wheel
drive low range.1) Transfer case not completely
engaged in 4L position.1) With the transmission in
NEUTRAL, or the clutch depressed
in the case of a manual
transmission and the vehicle moving
under 3-4 km/h (2-3 mph), shift the
transfer case to NEUTRAL and then
shift into the 4L position.
2) Shift linkage out of adjustment. 2) Adjust linkage.
3) Shift linkage loose or binding. 3) Tighten, lubricate, or repair
linkage as necessary.
4) Range fork damaged, inserts worn,
or fork is binding on the shift rail.4) Disassemble unit and repair as
necessary.
5) Low range gear worn or
damaged.5) Disassemble unit and repair as
necessary.
Lubricant leaking from output shaft
seal or vent.1) Transfer case overfilled. 1) Drain lubricant to the correct
level.
2) Vent closed or restricted. 2) Clear or replace vent as
necessary.
3) Output shaft seals damaged or
installed incorrectly.3) Replace seal as necessary.
Check to ensure that another
component, the propeller shaft slip
yoke for example, is not causing
damage to seal.
Abnormal tire wear. 1) Extended operation on hard, dry
surfaces in the 4H position.1) Operate vehicle in the 2H
position on hard, dry surfaces.
21 - 468 TRANSFER CASE - NV241HDBR/BE
TRANSFER CASE - NV241HD (Continued)
Page 1922 of 2255
REMOVAL
(1) Raise and support vehicle.
(2) Remove skid plate, if equipped. (Refer to 13 -
FRAMES & BUMPERS/FRAME/TRANSFER CASE
SKID PLATE - REMOVAL)
(3) Position drain oil container under transfer
case.
(4) Remove transfer case drain plug and drain
lubricant into container.
(5) Disconnect vent hose and vacuum harness at
transfer case switch.
(6) Disconnect shift rod from grommet in transfer
case shift lever, or from floor shift arm whichever
provides easy access. Use channel lock style pliers to
press rod out of lever grommet.
(7) Support transmission with jack stand.
(8) Remove rear crossmember.
(9) Mark front and rear propeller shafts for assem-
bly reference.
(10) Remove front and rear propeller shafts. (Refer
to 3 - DIFFERENTIAL & DRIVELINE/PROPELLER
SHAFT/PROPELLER SHAFT - REMOVAL)
(11) Support transfer case with suitable jack.
Secure transfer case to jack with safety chains.
(12) Remove nuts attaching transfer case to trans-
mission.
(13) Move transfer case assembly rearward until
free of transmission output shaft.
(14) Lower jack and move transfer case from
under vehicle.
DISASSEMBLY
Position transfer case in a shallow drain pan.
Remove drain plug and drain any remaining lubri-
cant remaining in case.
EXTENSION HOUSING
(1) Remove extension housing snap-ring access
cover.
(2) Remove bolts holding extension housing to rear
case half.
(3) Tap extension housing with plastic or rawhide
hammer to loosen sealant.
(4) Disengage extension housing snap-ring from
rear output shaft bearing.
(5) Separate extension housing from transfer case.
COMPANION FLANGE AND SHIFT LEVER
(1) Shift transfer case into NEUTRAL.
(2) Remove companion flange nut (Fig. 3). Discard
nut after removal. It is not reusable.
(3) Remove companion flange from front output
shaft. Use a suitable puller if flange can not be
removed by hand.
(4) Remove companion flange rubber seal from
front output shaft (Fig. 4).(5) Remove nut and washer that retain shift lever
to sector shaft. Then remove shift lever from shaft
(Fig. 5).
FRONT OUTPUT SHAFT AND DRIVE CHAIN
(1) Remove output bearing retaining ring with
heavy duty snap-ring pliers.
(2) Remove output shaft bearing.
(3) Note position of bolts that attach rear case to
front case (Fig. 6). Some bolts/studs at ends of case
Fig. 3 Removing Companion Flange Nut
1 - COMPANION FLANGE
2 - 1-1/8º SOCKET
Fig. 4 Companion Flange Seal Removal
1 - FLANGE SEAL
Fig. 5 Shift Lever Removal
1 - SHIFT LEVER
2 - NUT/WASHER
BR/BETRANSFER CASE - NV241HD 21 - 469
TRANSFER CASE - NV241HD (Continued)
Page 1937 of 2255
(5) Install input gear in planetary carrier (Fig. 57).
(6) Install second thrust washer in planetary car-
rier. Be sure washer tabs are seated in carrier slots.
(7) Install lock ring (Fig. 58).(8) Install retaining ring (Fig. 59).
INPUT AND PLANETARY GEAR
(1) Lubricate planetary pinions and annulus gear
with transmission fluid.
(2) Install planetary/input gear assembly in case
(Fig. 60).
(3) Start planetary pinions in low range annulus
gear. Then tap PTO gear, with hammer handle to
seat planetary pinions in annulus gear.
Fig. 57 Input Gear And Thrust Washer Installation
1 - INPUT GEAR
2 - THRUST WASHER
3 - TABS IN SLOTS
Fig. 58 Lock Ring Installation
1 - LOCK RING (BE SURE TABS ARE SEATED IN SLOTS)
Fig. 59 Retaining Ring Installation
1 - RETAINING RING
Fig. 60 Planetary/Input Gear Assembly Installation
1 - WOOD/RUBBER HAMMER HANDLE
2 - PLANETARY ASSEMBLY
21 - 484 TRANSFER CASE - NV241HDBR/BE
TRANSFER CASE - NV241HD (Continued)
Page 1941 of 2255
CAUTION: The sliding clutch must be correctly
positioned to ensure proper shifting. Position the
clutch on the hub so a clutch spline is centered
over each strut as shown (Fig. 72). If the clutch is
installed so a gap between splines is aligned with
one or more struts, gear clash will result.
SHIFT FORKS AND MAINSHAFT
(1) Support front case on wood blocks so case inte-
rior is facing up. Place blocks between mounting
studs on forward surface of case. Be sure blocks will
not interfere with input gear installation.(2) Lubricate mainshaft components with trans-
mission fluid.
(3) Lubricate sector shaft with transmission fluid
and install shift sector in case (Fig. 73). Position slot
in sector so it will be aligned with shift fork pin
when shift forks are installed.
(4) Assemble range fork and sliding hub (Fig. 74).
Then install fork and hub in case. Seat hub on sup-
port sleeve and seat range fork pin in shift sector slot
(Fig. 75).
Fig. 72 Correct Alignment Of Struts And Sliding
Clutch
1 - SLEEVE TOOTH ALIGNED WITH STRUT
2 - STRUT
3 - SLEEVE TOOTH NOT ALIGNED WITH STRUT
4 - STRUT
Fig. 73 Shift Sector Installation
1 - SHIFT SECTOR
2 - SECTOR SHAFT
Fig. 74 Assembling Range Fork And Sliding Hub
1 - RANGE FORK
2 - SLIDING HUB
21 - 488 TRANSFER CASE - NV241HDBR/BE
TRANSFER CASE - NV241HD (Continued)
Page 1943 of 2255
(8) Install new o-ring on vacuum/indicator switch,
if necessary. Install vacuum/indicator switch (Fig.
79). Tighten switch to 20-34 N´m (15-25 ft. lbs.)
torque.
(9) Install new sector shaft o-ring and o-ring
retainer in sector shaft bore (Fig. 80). Lubricate
o-ring with transmission fluid or petroleum jelly after
installation.(10) Install shift lever on sector shaft (Fig. 81).
(11) Install washer and nut on sector shaft to
secure shift lever. Apply 1-2 drops MopartLock N'
Seal, or equivalent, to nut threads before installation.
Then tighten nut to 27-34 N´m (20-25 ft. lbs.) torque.
(12) Install poppet plunger and spring (Fig. 82).
(13) Install new o-ring on poppet screw and install
screw in front case (Fig. 83). Tighten screw to 16-24
N´m (12-18 ft. lbs.).
Fig. 79 Vacuum/Indicator Switch Installation
1 - 1-1/16º SOCKET
2 - INDICATOR SWITCH
Fig. 80 Sector Shaft O-Ring And Retainer
Installation
1 - SECTOR SHAFT BORE
2 - O-RING
3 - O-RING RETAINER
Fig. 81 Shift Lever Installation
1 - SHIFT LEVER
2 - NUT/WASHER
Fig. 82 Poppet Plunger And Spring Installation
1 - POPPET PLUNGER AND SPRING
21 - 490 TRANSFER CASE - NV241HDBR/BE
TRANSFER CASE - NV241HD (Continued)
Page 1947 of 2255
COMPANION FLANGE
(1) Install companion flange seal on front shaft
(Fig. 95).
(2) Install companion flange on front shaft (Fig.
96). Then install and tighten flange nut to 176-271
N´m (130-200 ft. lbs.) torque.
EXTENSION HOUSING AND PTO COVER
(1) Apply bead of MopartGasket Maker, or equiv-
alent, to mating surface of extension housing. Keep
sealer bead width to maximum of 3/16 inch. Do not
use excessive amount of sealer as excess could be dis-
placed into oil pump.
(2) Position extension housing over output shaft.
(3) Spread extension housing retaining ring and
seat extension housing on rear case. Verify that the
retaining ring is seated in output shaft rear bearing.
(4) Install retaining ring access cover.
(5) Apply MopartSilicone Sealer, or equivalent, to
threads of extension housing bolts. Then install bolts
finger tight.
(6) Tighten extension housing bolts to 27-34 N´m
(20-25 ft. lbs.) torque.
(7) Apply MopartSilicone Sealer to mating surface
of PTO cover and to cover bolt shanks and underside
of bolt heads. Then install and tighten bolts to 27-34
N´m (20-25 ft. lbs.) torque.
INSTALLATION
(1) Align and seat transfer case on transmission.
Be sure transfer case input gear splines are aligned
with transmission output shaft. Align splines by
rotating transfer case rear output shaft yoke if nec-
essary. Do not install any transfer case attaching
nuts until the transfer case is completely seated
against the transmission.
(2) Install and tighten transfer case attaching
nuts. Tighten nuts to 30-41 N´m (20-30 ft.lbs.).
(3) Install rear crossmember.
(4) Remove jack stand from under transmission.
(5) Align and connect propeller shafts. (Refer to 3 -
DIFFERENTIAL & DRIVELINE/PROPELLER
SHAFT/PROPELLER SHAFT - INSTALLATION)
(6) Connect vacuum harness and vent hose.
(7) Connect shift rod to transfer case lever or floor
shift arm. Use channel lock style pliers to press rod
back into lever grommet.
(8) Adjust shift linkage, if necessary.
(9) Fill transfer case with recommended transmis-
sion fluid and install fill plug.
(10) Install skid plate, if equipped. (Refer to 13 -
FRAMES & BUMPERS/FRAME/TRANSFER CASE
SKID PLATE - INSTALLATION)
(11) Lower vehicle
Fig. 95 Installing Flange Seal On Front Shaft
1 - FRONT OUTPUT SHAFT
2 - FLANGE SEAL
Fig. 96 Installing Companion Flange On Front Shaft
1 - COMPANION FLANGE
21 - 494 TRANSFER CASE - NV241HDBR/BE
TRANSFER CASE - NV241HD (Continued)
Page 1950 of 2255
EXTENSION HOUSING
BUSHING AND SEAL
REMOVAL
(1) Raise and support vehicle.
(2) Remove rear propeller shaft. (Refer to 3 - DIF-
FERENTIAL & DRIVELINE/PROPELLER SHAFT/
PROPELLER SHAFT - REMOVAL)
(3) Using a suitable pry tool or slide-hammer
mounted screw, remove the extension housing seal.
(4) Using Remover 8155, remove bushing from
extension housing (Fig. 97).
INSTALLATION
(1) Clean fluid residue from sealing surface and
inspect for defects.
(2) Position replacement bushing in extension
housing with fluid port in bushing aligned with slot
in housing.
(3) Using Installer 8156, drive bushing into hous-
ing until installer seats against case (Fig. 98).
(4) Using Installer 8154, install seal in extension
housing (Fig. 99).
(5) Install propeller shaft. (Refer to 3 - DIFFER-
ENTIAL & DRIVELINE/PROPELLER SHAFT/PRO-
PELLER SHAFT - INSTALLATION)
(6) Verify proper transfer case fluid level.
(7) Lower vehicle.
FLUID
STANDARD PROCEDURE - FLUID DRAIN/
REFILL
(1) Raise vehicle.
(2) Position drain pan under transfer case.
(3) Remove drain and fill plugs and drain lubri-
cant completely.
(4) Install drain plug. Tighten plug to 41-54 N´m
(30-40 ft. lbs.).
(5) Remove drain pan.
(6) Fill transfer case to bottom edge of fill plug
opening with MopartATF +4, type 9602, Automatic
Transmission fluid.
(7) Install and tighten fill plug to 41-54 N´m
(30-40 ft. lbs.).
(8) Lower vehicle.
Fig. 97 Extension Housing Bushing Removal
1 - REMOVER 8155
2 - EXTENSION HOUSING BUSHING
Fig. 98 Extension Housing Bushing Installation
1 - EXTENSION HOUSING BUSHING
2 - INSTALLER 8156
Fig. 99 Install Extension Housing Seal
1 - SPECIAL TOOL C-4171
2 - SPECIAL TOOL 8154
BR/BETRANSFER CASE - NV241HD 21 - 497
Page 1952 of 2255
(2) Install companion flange seal on front shaft
(Fig. 104).
(3) Install companion flange on front shaft (Fig.
105). Then install and tighten flange nut to 176-271
N´m (130-200 ft. lbs.) torque.
(4) Install propeller shaft. (Refer to 3 - DIFFER-
ENTIAL & DRIVELINE/PROPELLER SHAFT/PRO-
PELLER SHAFT - INSTALLATION)SHIFT LEVER
REMOVAL
(1) Shift transfer case into 2H.
(2) Remove transfer case shifter knob cap.
(3) Remove nut holding shifter knob to shift lever.
(4) Remove shifter knob.
(5) Remove the shift boot from the shifter bezel.
(6) Remove the bolts securing the shifter mecha-
nism to the floor pan along the driver's side of the
transmission tunnel (Fig. 106).
(7) Raise and support the vehicle.
(8) Loosen adjusting trunnion lock bolt and slide
shift rod out of trunnion. If rod lacks enough travel
to come out of trunnion, push trunnion out of shift
lever.
(9) Remove the nuts holding the shifter mecha-
nism to the underside of the floor pan.
(10) Separate shift lever mechanism from the vehi-
cle.
Fig. 104 Installing Flange Seal On Front Shaft
1 - FRONT OUTPUT SHAFT
2 - FLANGE SEAL
Fig. 105 Installing Companion Flange On Front
Shaft
1 - COMPANION FLANGE
Fig. 106 Transfer Case Shifter
1 - TRANSFER CASE SHIFTER ASSEMBLY
2 - SHIFT ROD
3 - TRUNNION
4 - LOCK BOLT
BR/BETRANSFER CASE - NV241HD 21 - 499
FRONT OUTPUT SHAFT SEAL (Continued)
Page 2029 of 2255
Description N´m Ft. lbs. In. lbs.
Center seat/seat frame
bolts25 18 Ð
Cubby bin screws 2 Ð 20
Cup holder screws 2 Ð 20
Door hinge to A-pillar
bolt28 21 Ð
Door latch screw 11 8 Ð
Door latch striker screw 28 21 Ð
Easy entry track/
adjuster track bolts -
front17 12 Ð
Easy entry track/
adjuster track bolts -
rear inboard21 16 Ð
Easy entry track/
adjuster track bolts -
rear outboard45 33 Ð
Front belt buckle
inboard anchor nut45 33 Ð
Front belt retractor
anchor bolt39 28 Ð
Front door glass lift
plate nuts9Ð80
Front door latch screws 10 Ð 89
Front shoulder belt
anchor bolt45 33 Ð
Front shoulder belt
lower anchor bolt39 28 Ð
Front shoulder belt
lower anchor bolt45 33 Ð
Front shoulder belt
upper anchor bolt39 28 Ð
Glove box bin/door
screws2Ð20
Glove box latch striker
screws2Ð20
Glove box opening trim
screws2Ð20
Headlamp/dash wire
harness bulkhead
connector screw3.5 Ð 31
Hood latch release
handle screws3Ð25
Inboard seat back pivot
bolt50 36 Ð
Instrument panel roll
down bracket screws12 9 105Description N´m Ft. lbs. In. lbs.
Instrument panel top
cover screws2Ð20
Instrument panel/dash
panel screws3Ð28
Manual transmission
shifter knob nut27 20 Ð
Quarter vent window
hinge nuts8Ð70
Quarter vent window
latch to glass screws6Ð60
Rear seat support
bracket screws28 21 Ð
Rear view mirror set
screw1Ð15
Seat adjuster track/seat
cushion frame screws25 18 Ð
Seat cushion frame/
mounting bracket bolts25 18 Ð
Seat cushion frame/
power track crossbrace
bolts10 Ð 89
Seat track adjuster bolts 17 12 Ð
Seat track bolts 25 18 Ð
Seat track/frame bolts 25 18 Ð
Slide bar bolts 10 Ð 89
Sliding backlite
latch/keeper screws1.5 Ð 15
Split bench seat back
shoulder bolt49 36 Ð
Split bench seat back to
cushion pivot bolt25 18 Ð
Split bench seat front
anchor bolt54 40 Ð
Split bench seat rear
inboard anchor nut40 30 Ð
Split bench seat rear
outboard anchor nut54 40 Ð
Split bench seat track to
frame bolt25 18 Ð
Split bench/bottom of
center occupant seat
bolt28 21 Ð
Steering column cover
screws2Ð20
Storage bin screws 2 Ð 20
23 - 62 BODYBR/BE
BODY (Continued)
Page 2072 of 2255
INSTRUMENT PANEL SYSTEM
TABLE OF CONTENTS
page page
INSTRUMENT PANEL SYSTEM
DESCRIPTION........................105
OPERATION..........................106
ASH RECEIVER
REMOVAL............................107
INSTALLATION........................107
CLUSTER BEZEL
REMOVAL............................108
INSTALLATION........................108
CUBBY BIN
REMOVAL............................108
INSTALLATION........................109
CUP HOLDER
REMOVAL............................109
INSTALLATION........................110
GLOVE BOX
REMOVAL
REMOVAL..........................110
DISASSEMBLY - GLOVE BOX...........110
ASSEMBLY - GLOVE BOX................111INSTALLATION........................111
GLOVE BOX LATCH STRIKER
REMOVAL............................111
INSTALLATION........................112
GLOVE BOX OPENING UPPER TRIM
REMOVAL............................112
INSTALLATION........................112
INSTRUMENT PANEL TOP COVER
REMOVAL............................113
INSTALLATION........................113
STEERING COLUMN OPENING COVER
REMOVAL............................113
INSTALLATION........................114
STORAGE BIN
REMOVAL............................114
INSTALLATION........................114
INSTRUMENT PANEL ASSEMBLY
REMOVAL............................115
INSTALLATION........................117
INSTRUMENT PANEL SYSTEM
DESCRIPTION
The instrument panel is located at the front of the
passenger compartment. This instrument panel is
molded from a blend of various plastics that are
mechanically attached to the vehicle. Colors are
molded into the plastic components to minimize
appearance degradation from scratches or abrasions.
The panel components are internally ribbed and riv-
eted to steel reinforcements for additional structural
integrity and dimensional stability. The instrument
panel surface components are designed to deform
upon impact without breaking. This type of construc-
tion provides improved energy absorption which, in
conjunction with the dual airbags and seat belts,
helps to improve occupant protection.
The top of the instrument panel is secured to the
top of the dash panel near the base of the windshield
using screws. An end bracket integral to each end of
the instrument panel structure is secured to each
cowl side inner panel with a screw. A stamped metal
bracket supports the center of the instrument panel
by securing it to the top of the floor panel transmis-
sion tunnel below the instrument panel with screws.
The instrument cluster, radio, heater-air conditioner
control, passenger airbag, glove box, electrical junc-tion block, Central Timer Module (CTM), accessory
switches, ash receiver, cigar lighter, accessory power
outlet, park brake release handle, inside hood release
handle, as well as numerous other components are
secured to and supported by this unit.
The instrument panel for this vehicle includes the
following major features:
²Cluster Bezel- This molded plastic bezel is
secured with snap clips to the instrument panel sup-
porting structure. It trims out the edges of the head-
lamp switch, instrument cluster, radio, heater-air
conditioner controls, passenger airbag on-off switch,
and the heated seat switches on vehicles so equipped.
On vehicles without the heated seat option, a small
storage cubby bin is provided in the cluster bezel.
This bezel also incorporates three completely adjust-
able panel outlets for the climate control system, and
fills the opening between the instrument cluster and
the top of the steering column where it passes
through the instrument panel.
²Cup Holder/Storage Bin- Vehicles equipped
with an automatic transmission feature a latching
fold-down, adjustable cup holder located on the lower
instrument panel between the glove box and the ash
receiver. Vehicles equipped with a manual transmis-
sion have a lighted storage bin on the instrument
panel in place of the cup holder.
BR/BEINSTRUMENT PANEL SYSTEM 23 - 105