1998 DODGE RAM 1500 tow

(11) Remove the transfer plate from the valve
body. Note the location of all check balls (Fig. 137).
(12) Remove the check balls from the valve body.
(13) Remove the retainers securing the solenoid
switch valve, manual valve, and the low/reverse
switch valve into the valve body and remove the
associated valve and spring. Tag each valve and
spring combination with location information to aid
in assembly. (Fig. 138)
CLEANING
Clean the valve housings, valves, plugs, springs,
and separator plates with a standard parts cleaning
solution only. Do not use gasoline, kerosene, or any
type of caustic solution. (Fig. 139)
Do not immerse any of the electrical components in
cleaning solution. Clean the electrical components by
wiping them off with dry shop towels only.
Dry all except the electrical parts with compressed
air. Make sure all passages are clean and free from
obstructions.Do not use rags or shop towels to
dry or wipe off valve body components. Lint
from these materials can stick to valve body
parts, interfere with valve operation, and clog
filters and fluid passages.
Fig. 137 Check Ball Locations
Fig. 138 Valve Body Components
1 - SOLENOID SWITCH VALVE
2 - MANUAL VALVE
3 - LOW REVERSE SWITCH VALVE
4 - LOW REVERSE ACCUMULATOR
5 - 2ND CLUTCH ACCUMULATOR
6 - UNDERDRIVE ACCUMULATOR
7 - OVERDRIVE ACCUMULATOR
8 - 4TH CLUTCH ACCUMULATOR
9 - CHECK BALLS (7)
21 - 412 AUTOMATIC TRANSMISSION - 45RFE/545RFEDR
VALVE BODY (Continued)

INSTALLATION
(1) Install the mirror onto the door and engage the
electrical connector tabs. (Fig. 13)
(2) Install the nuts and tighten to 7 N´m (60 in.
lbs.).
(3) Install the door trim panel. (Refer to 23 -
BODY/DOOR - FRONT/TRIM PANEL - INSTALLA-
TION)
UPPER RADIATOR
CROSSMEMBER
REMOVAL
(1) Remove the hood latch. (Refer to 23 - BODY/
HOOD/LATCH - REMOVAL)
(2) Remove the radiator and condenser bolts. (Fig.
14)
(3) Remove the bolts and remove the crossmember.
(Fig. 15)
INSTALLATION
(1) Install the crossmember and install the bolts.
(2) Tighten the bolts to 28 N´m (21 ft. lbs.).
(3) Install the radiator and condenser bolts and
tighten to 8 N´m (75 in. lbs.).
(4) Install the hood latch. (Refer to 23 - BODY/
HOOD/LATCH - INSTALLATION)
SIDE VIEW MIRROR GLASS
REMOVAL
WARNING: ALWAYS WEAR EYE AND HAND PRO-
TECTION WHEN SERVICING THE MIRROR ASSEM-
BLY. FAILURE TO OBSERVE THESE WARNINGS
MAY RESULT IN PERSONAL INJURY FROM BRO-
KEN GLASS.
Standard Mirror
(1) Position the mirror glass so that it's facing in
toward the vehicle as far as possible. (Fig. 16)
Fig. 13 MIRROR ELECTRICAL CONNECTOR
1 - DOOR
2 - MIRROR STUDS
3 - CONNECTOR TABS
4 - ELECTRICAL CONNECTOR
Fig. 14 CONDENSER/RADIATOR FASTENERS
1 - CONDENSER BOLT
2 - RADIATOR BOLT
3 - RADIATOR CROSSMEMBER
Fig. 15 RADIATOR CROSSMEMBER
1 - BOLTS (2)
2 - CROSSMEMBER
3 - BOLTS (2)
23 - 42 EXTERIORDR
SIDE VIEW MIRROR (Continued)

(2) Disengage the rear housing cover retaining
tabs and remove the cover. (Fig. 17)
(3) Disengage the lower glass retaining tab to
motor. (Fig. 18)
(4) Slide glass up and remove from motor.
(5) Disconnect the two heated mirror electrical
connectors, if equipped.
Tow Package Mirror
(1) Position the mirror in the out position. (Fig. 19)
(2) Release the retaining clip and separate the
glass.
(3) Disconnect the four heated glass electrical con-
nectors, if equipped. (Fig. 20)
INSTALLATION
Standard Mirror
(1) Connect the two heated mirror electrical con-
nectors, if equipped. (Fig. 21)
(2) Position the mirror glass mounting holes over
the four feet of the mirror motor and slide down.
(Fig. 22)
(3) Engage the lower glass retaining tab to the
motor. (Fig. 18)
(4) Position the rear housing cover and seat the
retaining tabs fully. (Fig. 17)
Tow Package Mirror
(1) Make sure the retaining clip is seated in the
closed position on the mirror glass.
Fig. 16 STANDARD MIRROR POSITION
1 - RETAINING TABS (2)
2 - MIRROR HOUSING
3 - MIRROR GLASS
Fig. 17 STANDARD MIRROR HOUSING COVER
1 - MIRROR HOUSING COVER
2 - RETAINING TABS (3)
Fig. 18 STANDARD MIRROR RETAINING TAB
1 - MIRROR ASSEMBLY
2 - MIRROR GLASS LOWER RETAINING TAB
Fig. 19 TOW PACKAGE MIRROR POSITION
1 - MIRROR HOUSING ASSEMBLY
2 - MIRROR GLASS RETAINING CLIP
3 - MIRROR GLASS
DREXTERIOR 23 - 43
SIDE VIEW MIRROR GLASS (Continued)

(2) Connect the heated mirror electrical connec-
tors, if equipped.
NOTE: Pressure must be applied equally over the
center portion of the mirror to engage the mirror
glass retaining clip fully.
(3) Position the glass over the motor mounting and
seat fully. Make sure the retaining clip seats fully.
REAR FENDER
REMOVAL
(1) Remove the wheel house splash shield. (Refer
to 23 - BODY/EXTERIOR/REAR WHEELHOUSE
SPLASH SHIELD - REMOVAL)
(2) Disconnect the marker lamps electrical connec-
tors.
(3) Remove the tail lamp units. (Refer to 8 -
ELECTRICAL/LAMPS/LIGHTING - EXTERIOR/
TAIL LAMP UNIT - REMOVAL)
(4) Remove the two fender nuts. (Fig. 23)
(5) Remove the rear inner nuts below the tail
lamp. (Fig. 24)
(6) Remove the two bolts at the rear bottom edge.
(7) Remove the two bolts at the front bottom edge.
(8) Remove the four inner nuts front edge. (Fig.
25)
(9) Loosen bolts and loosen the two fender support
brackets. (Fig. 26)
CAUTION: Mask off the surrounding box area to
avoid damage to the painted surfaces.
(10) Lift the fender up off the support brackets
and remove the fender.
INSTALLATION
CAUTION: Mask off the surrounding box area to
avoid damage to the painted surfaces during instal-
lation.
Fig. 20 TOW PACKAGE MIRROR GLASS
1 - HEATED GLASS ELECTRICAL CONNECTORS (IF EQUIPPED)
2 - MIRROR GLASS
3 - RETAINING CLIP
Fig. 21 STANDARD MIRROR INSTALLATION
1 - MIRROR GLASS
2 - UPPER AND LOWER RETAINING CLIPS
3 - HEATED MIRROR ELECTRICAL CONNECTORS (IF
EQUIPPED)
4 - MIRROR GLASS MOUNTING HOLES (4)
Fig. 22 STANDARD MIRROR ASSEMBLY
1 - HEATED MIRROR ELECTRICAL CONNECTORS (IF
EQUIPPED)
2 - MIRROR HOUSING
3 - HOUSING COVER LOCKING TABS
4 - MIRROR GLASS MOUNTING FEET (4)
23 - 44 EXTERIORDR
SIDE VIEW MIRROR GLASS (Continued)

INSTALLATION
INSTALLATION
(1) Position the mirror base at the bracket and
slide it downward onto the support bracket (Fig. 18).
(2) Tighten the setscrew 1 N´m (15 in. lbs.) torque.
(3) If equipped, connect mirror harness connector.
INSTALLATION - REAR VIEW MIRROR
SUPPORT BRACKET
(1) Mark the position for the mirror bracket on the
outside of the windshield glass with a wax pencil.
(2) Clean the bracket contact area on the glass.
Use a mild powdered cleanser on a cloth saturated
with isopropyl (rubbing) alcohol. Finally, clean the
glass with a paper towel dampened with alcohol.
(3) Sand the surface on the support bracket with
fine grit-sandpaper. Wipe the bracket surface clean
with a paper towel.
(4) Apply accelerator to the surface on the bracket
according to the following instructions:
(a) Crush the vial to saturate the felt applicator.
(b) Remove the paper sleeve.
(c) Apply accelerator to the contact surface on
the bracket.
(d) Allow the accelerator to dry for five minutes.
(e) Do not touch the bracket contact surface
after the accelerator has been applied.
(5) Apply adhesive accelerator to the bracket con-
tact surface on the windshield glass. Allow the accel-
erator to dry for one minute. Do not touch the glass
contact surface after the accelerator has been
applied.
(6) Install the bracket according to the following
instructions:(a) Apply one drop of adhesive at the center of
the bracket contact-surface on the windshield
glass.
(b) Apply an even coat of adhesive to the contact
surface on the bracket.
(c) Align the bracket with the marked position
on the windshield glass.
(d) Press and hold the bracket in place for at
least one minute.
NOTE: Verify that the mirror support bracket is cor-
rectly aligned, because the adhesive will cure rapidly.
(7) Allow the adhesive to cure for 8-10 minutes.
Remove any excess adhesive with an alcohol-damp-
ened cloth.
(8) Allow the adhesive to cure for an additional
8-10 minutes before installing the mirror.
SUN VISOR
REMOVAL
(1) Remove the screws at the visor pivot and
remove the visor.
INSTALLATION
(1) Install the visor and install the screws at the
visor pivots.
SUN VISOR SUPPORT
REMOVAL
(1) Using a trim stick C-4755 or equivalent, pry
down the release clip and remove the hook. (Fig. 19)
Fig. 18 REAR VIEW MIRROR
1 - CONNECTOR
2 - SCREW
3 - REAR VIEW MIRROR
4 - SUPPORT BUTTON
5 - WINDSHIELD
Fig. 19 VISOR SUPPORT
1 - VISOR SUPPORT
2 - HEADLINER
3 - RELEASE CLIP
23 - 70 INTERIORDR
REAR VIEW MIRROR (Continued)

INSTALLATION
(1) Snap the visor support into the sheet metal
and seat the release clip fully.
BODY VENT
REMOVAL
(1) Remove the cab back panel trim. (Refer to 23 -
BODY/INTERIOR/REAR CAB BACK PANEL TRIM -
REMOVAL)
(2) While holding the vent, press the tabs to
release the vent into the cab back panel. (Fig. 20)
(3) Twist the vent and remove through the vent
hole.
INSTALLATION
(1) Position the vent into the vent hole in the cab
back panel.
(2) Twist the vent and pull it into the hole frame
and seat the tabs fully.
(3) Install the cab back panel trim. (Refer to 23 -
BODY/INTERIOR/REAR CAB BACK PANEL TRIM -
INSTALLATION)
REAR DOOR SILL TRIM COVER
REMOVAL
(1) Using a trim stick C-4755 or equivalent, pry up
the sill trim and remove. (Fig. 21)
INSTALLATION
(1) Position the sill trim and seat the attachment
clips fully.
LOAD FLOOR
REMOVAL
(1) Fold the rear seat cushion up.
(2) Remove the rear nuts in each corner. (Fig. 22)
(3) Fold the load floor up, remove the front bolts
and remove the tray. (Fig. 23)
Fig. 20 BODY VENT
1 - RETAINER TABS
2 - BODY VENT
3 - CAB BACK PANEL
Fig. 21 REAR DOOR SILL TRIM
1 - SILL TRIM
2 - REAR DOOR SILL
Fig. 22 REAR LOAD FLOOR - REAR FASTENERS
1 - REAR SEAT CUSHION
2 - NUTS (2)
3 - STOWAGE TRAY
DRINTERIOR 23 - 71
SUN VISOR SUPPORT (Continued)

NOTE: The instrument panel air outlets are retained
into the outlet housings by a light snap fit.
(1) Using a trim stick or another suitable wide
flat-bladed tool, gently pry the panel air outlet(s) out
of the panel outlet housing(s) as required (Fig. 1).
INSTALLATION
(1) Position the air outlet(s) onto the outlet hous-
ing(s).
(2) Gently push the air outlet into the housing
until it snaps into position.
BLEND DOOR
REMOVAL
WARNING: ON VEHICLES EQUIPPED WITH AIR-
BAGS, DISABLE THE AIRBAG SYSTEM BEFORE
ATTEMPTING ANY STEERING WHEEL, STEERING
COLUMN, OR INSTRUMENT PANEL COMPONENT
DIAGNOSIS OR SERVICE. DISCONNECT AND ISO-
LATE THE BATTERY NEGATIVE (GROUND) CABLE,
THEN WAIT TWO MINUTES FOR THE AIRBAG SYS-
TEM CAPACITOR TO DISCHARGE BEFORE PER-
FORMING FURTHER DIAGNOSIS OR SERVICE. THIS
IS THE ONLY SURE WAY TO DISABLE THE AIRBAG
SYSTEM. FAILURE TO TAKE THE PROPER PRE-
CAUTIONS COULD RESULT IN AN ACCIDENTAL
AIRBAG DEPLOYMENT AND POSSIBLE PERSONAL
INJURY.NOTE: Vehicles equiped with single zone HVAC
systems have one blend door, dual zone systems
have two blend doors.
(1) Remove the HVAC housing from the vehicle
(Refer to 24 - HEATING & AIR CONDITIONING/
DISTRIBUTION/HVAC HOUSING - REMOVAL).
(2) Disassemble the HVAC housing (Refer to 24 -
HEATING & AIR CONDITIONING/DISTRIBUTION/
HVAC HOUSING - DISASSEMBLY).
(3) Remove the levers from the driver and/or pas-
senger side blend door (if equipped) (Fig. 2).
(4) Gently slide the drivers and/or passenger side
blend door toward the out side of the housing. Tilt
and lift the door(s) out of the housing.
(5) Inspect the blend door(s), seals and the HVAC
housing for damage or binding and repair or replace
components as required.
INSTALLATION
(1) Position the blend door pivot shafts into the
pivot hole and actuator in the bottom of the lower
half of the HVAC housing.
(2) Install the blend door(s) by carefully tipping
the doors into the HVAC housing, then sliding each
door into it's operating position.
(3) Install the levers to the driver and/or passen-
ger side blend door (if equipped).
(4) Assemble the HVAC housing (Refer to 24 -
HEATING & AIR CONDITIONING/DISTRIBUTION/
HVAC HOUSING - ASSEMBLY)
Fig. 1 Instrument Panel Air Outlets
1 - HEADLIGHT SWITCH
2 - AIR OUTLETS
3 - INSTRUMENT CLUSTER
4 - CLIMATE CONTROL
5 - RADIO
6 - AIRBAG
7 - GLOVE BOX
8 - HEATED SEAT SWITCH (IF EQUIPPED)
9 - TRANSFER CASE SWITCH (IF EQUIPPED)
10 - CIGAR LIGHTER
11 - CUP HOLDERS
12 - ASH TRAY (IF EQUIPPED)
13 - POWER OUTLET
Fig. 2 Blend Door - Dual Zone Shown, Single Zone
Typical
1 - PASSENGER SIDE BLEND DOOR LEVER
2 - PASSENGER SIDE BLEND DOOR
3 - EVAPORATOR TEMPERATURE SENSOR WIRE
4 - HVAC HOUSING
5 - A/C EVAPORATOR
6 - EVAPORATOR TEMPERATURE SENSOR PROBE
7 - DRIVER SIDE BLEND DOOR
8 - DRIVER SIDE BLEND DOOR LEVER
DRDISTRIBUTION 24 - 27
AIR OUTLETS (Continued)

REMOVAL
WARNING: ON VEHICLES EQUIPPED WITH AIR-
BAGS, DISABLE THE AIRBAG SYSTEM BEFORE
ATTEMPTING ANY STEERING WHEEL, STEERING
COLUMN, OR INSTRUMENT PANEL COMPONENT
DIAGNOSIS OR SERVICE. DISCONNECT AND ISO-
LATE THE BATTERY NEGATIVE (GROUND) CABLE,
THEN WAIT TWO MINUTES FOR THE AIRBAG SYS-
TEM CAPACITOR TO DISCHARGE BEFORE PER-
FORMING FURTHER DIAGNOSIS OR SERVICE. THIS
IS THE ONLY SURE WAY TO DISABLE THE AIRBAG
SYSTEM. FAILURE TO TAKE THE PROPER PRE-
CAUTIONS COULD RESULT IN AN ACCIDENTAL
AIRBAG DEPLOYMENT AND POSSIBLE PERSONAL
INJURY.
NOTE: The blower motor is located on the passen-
ger side of the vehicle under the instrument panel.
The blower motor can be removed from the vehicle
without having to remove the HVAC housing.
(1) Disconnect and isolate the battery negative
cable.
(2) Disconnect the wire harness connector from the
blower motor. (Fig. 5).
(3) Remove the three screws that secure the
blower motor to the HVAC housing.
(4) Remove the blower motor from the HVAC hous-
ing by rotating and tilting the blower motor as
needed for clearance.
INSTALLATION
(1) Align and install the blower motor into the
HVAC housing.
(2) Install the three screws that secure the blower
motor to the HVAC housing. Tighten the screws to
2.2 N´m (20 in. lbs.).
(3) Connect the wire harness connector to the
blower motor.
(4) Reconnect the battery negative cable.
DEFROST DOOR
REMOVAL
WARNING: ON VEHICLES EQUIPPED WITH AIR-
BAGS, DISABLE THE AIRBAG SYSTEM BEFORE
ATTEMPTING ANY STEERING WHEEL, STEERING
COLUMN, OR INSTRUMENT PANEL COMPONENT
DIAGNOSIS OR SERVICE. DISCONNECT AND ISO-
LATE THE BATTERY NEGATIVE (GROUND) CABLE,
THEN WAIT TWO MINUTES FOR THE AIRBAG SYS-
TEM CAPACITOR TO DISCHARGE BEFORE PER-
FORMING FURTHER DIAGNOSIS OR SERVICE. THISIS THE ONLY SURE WAY TO DISABLE THE AIRBAG
SYSTEM. FAILURE TO TAKE THE PROPER PRE-
CAUTIONS COULD RESULT IN AN ACCIDENTAL
AIRBAG DEPLOYMENT AND POSSIBLE PERSONAL
INJURY.
(1) Remove the HVAC housing from the vehicle
(Refer to 24 - HEATING & AIR CONDITIONING/
DISTRIBUTION/HVAC HOUSING - REMOVAL).
(2) Disassemble the HVAC housing (Refer to 24 -
HEATING & AIR CONDITIONING/DISTRIBUTION/
HVAC HOUSING - DISASSEMBLY).
(3) Remove the defrost door actuator and sleeve
from the lower half of the HVAC housing (Fig. 6).
(4) Gently slide the defrost door toward the out-
side of the housing. Tilt and lift the door out of the
housing.
(5) Inspect the defrost door, seals and the HVAC
housing for damage or binding and repair or replace
components as required.
INSTALLATION
(1) Position the defrost door pivot shaft into the
pivot hole in the lower half of the HVAC housing.
(2) Install the defrost door actuator and sleeve.
(3) Assemble the HVAC housing (Refer to 24 -
HEATING & AIR CONDITIONING/DISTRIBUTION/
HVAC HOUSING - ASSEMBLY)
(4) Install the HVAC housing (Refer to 24 - HEAT-
ING & AIR CONDITIONING/DISTRIBUTION/HVAC
HOUSING - INSTALLATION)
Fig. 5 HVAC Blower Motor - Typical
1 - RESISTOR BLOCK SCREWS (2)
2 - BLOWER MOTOR RESISTOR BLOCK
3 - RESISTOR BLOCK WIRE CONNECTOR
4 - BLOWER MOTOR SCREW
5 - BLOWER MOTOR
6 - BLOWER MOTOR WIRE CONNECTOR
7 - BLOWER MOTOR SCREW
8 - HVAC HOUSING
9 - WIRE HARNESS RETAINER (2)
10 - BLOWER MOTOR SCREW
DRDISTRIBUTION 24 - 31
BLOWER MOTOR (Continued)