DODGE RAM 1500 1998 2.G Workshop Manual

(8) Turn valve body over and remove screws that
attach overdrive/converter solenoid assembly to valve
body (Fig. 277).
(9) Remove solenoid and harness assembly from
valve body (Fig. 278).
(10) Remove boost valve cover (Fig. 279).
(11) Remove boost valve retainer, valve spring and
boost valve (Fig. 280).
Fig. 277 Solenoid Assembly Screws
1 - OVERDRIVE/CONVERTER CLUTCH SOLENOID ASSEMBLY
2 - HARNESS
Fig. 278 Solenoid Assembly
1 - GOVERNOR SOLENOID WIRES
2 - CONVERTER CLUTCH SOLENOID
3 - SOLENOID SCREWS
4 - GOVERNOR SENSOR WIRES
5 - OVERDRIVE SOLENOID
6 - HARNESS
7 - CASE CONNECTOR
Fig. 279 Boost Valve Cover Location
1 - BOOST VALVE HOUSING AND COVER
2 - BOOST VALVE TUBE
Fig. 280 Boost Valve Components
1 - SPRING AND VALVE RETAINER
2 - COVER SCREWS
3 - BOOST VALVE COVER
4 - BOOST VALVE PLUG
5 - BOOST VALVE
6 - BOOST VALVE SPRING
21 - 288 AUTOMATIC TRANSMISSION - 48REDR
VALVE BODY (Continued)

(12) Secure detent ball and spring with Retainer
Tool 6583 (Fig. 281).
(13) Remove park rod E-clip and separate rod from
manual lever (Fig. 282).
(14) Remove E-clip and washer that retains throt-
tle lever shaft in manual lever (Fig. 283).
(15) Remove manual lever and throttle lever (Fig.
284). Rotate and lift manual lever off valve body and
throttle lever shaft. Then slide throttle lever out of
valve body.
(16) Position pencil magnet next to detent housing
to catch detent ball and spring. Then carefully
remove Retainer Tool 6583 and remove detent ball
and spring (Fig. 285).
Fig. 281 Detent Ball Spring
1 - SPECIAL TOOL 6583 POSITIONED ON DETENT HOUSING
Fig. 282 Park Rod
1 - MANUAL LEVER
2 - E-CLIP
3 - PARK ROD
Fig. 283 Throttle Lever E-Clip And Washer
1 - THROTTLE LEVER SHAFT
2 - E-CLIP AND WASHER
3 - MANUAL SHAFT
Fig. 284 Manual And Throttle Lever
1 - PARK ROD
2 - MANUAL LEVER ASSEMBLY
3 - THROTTLE LEVER
Fig. 285 Detent Ball And Spring
1 - DETENT HOUSING
2 - DETENT SPRING
3 - DETENT BALL
4 - PENCIL MAGNET
DRAUTOMATIC TRANSMISSION - 48RE 21 - 289
VALVE BODY (Continued)

(17) Remove screws attaching pressure adjusting
screw bracket to valve body and transfer plate (Fig.
286). Hold bracket firmly against spring tension
while removing last screw.
(18) Remove adjusting screw bracket, line pressure
adjusting screw, pressure regulator valve spring and
switch valve spring (Fig. 287). Do not remove throttle
pressure adjusting screw from bracket and do not
disturb setting of either adjusting screw during
removal.
(19) Turn upper housing over and remove switch
valve, regulator valve and spring, and manual valve
(Fig. 288).(20) Remove kickdown detent, kickdown valve, and
throttle valve and spring (Fig. 288).
(21) Loosen left-side 3-4 accumulator housing
attaching screw about 2-3 threads. Then remove cen-
ter and right-side housing attaching screws (Fig.
289).
(22) Carefully rotate 3-4 accumulator housing
upward and remove 3-4 shift valve spring and con-
verter clutch valve plug and spring (Fig. 290).
Fig. 287 Adjusting Screw Bracket
1 - SWITCH VALVE SPRING
2 - LINE PRESSURE SCREW
3 - THROTTLE PRESSURE ADJUSTING SCREW
4 - ADJUSTING SCREW BRACKET
5 - PRESSURE REGULATOR VALVE SPRING
Fig. 286 Adjusting Screw Bracket Fastener
1 - T25 TORXŸ BIT
2 - REMOVE THESE SCREWS FIRST
3 - BRACKET
4 - BRACKET
5 - REMOVE THIS SCREW LAST
21 - 290 AUTOMATIC TRANSMISSION - 48REDR
VALVE BODY (Continued)

Fig. 288 Upper Housing Control Valve Locations
1 - UPPER HOUSING 8 - MANUAL VALVE
2 - REGULATOR VALVE 9 - 1-2 GOVERNOR PLUG
3 - SWITCH VALVE 10 - GOVERNOR PLUG COVER
4 - REGULATOR VALVE SPRING 11 - THROTTLE PLUG
5 - KICKDOWN VALVE 12 - 2-3 GOVERNOR PLUG
6 - KICKDOWN DETENT 13 - SHUTTLE VALVE PRIMARY SPRING
7 - THROTTLE VALVE AND SPRING
Fig. 289 Accumulator Housing Screw Locations
1 - LOOSEN THIS SCREW
2 - REMOVE THESE SCREWS
3 - 3-4 ACCUMULATOR HOUSINGFig. 290 3-4 Shift And Converter Clutch Valve
Springs and Plug
1 - ACCUMULATOR HOUSING
2 - CONVERTER CLUTCH VALVE SPRING
3 - CLUTCH VALVE PLUG
4 - 3-4 SHIFT VALVE SPRING
DRAUTOMATIC TRANSMISSION - 48RE 21 - 291
VALVE BODY (Continued)

(23) Remove left-side screw and remove 3-4 accu-
mulator housing from valve body (Fig. 291).
(24) Bend back tabs on boost valve tube brace (Fig.
292).(25) Remove boost valve connecting tube (Fig.
293). Disengage tube from upper housing port first.
Then rock opposite end of tube back and forth to
work it out of lower housing.
CAUTION: Do not use tools to loosen or pry the
connecting tube out of the valve body housings.
Loosen and remove the tube by hand only.
(26) Turn valve body over so lower housing is fac-
ing upward (Fig. 294). In this position, the two check
balls in upper housing will remain in place and not
fall out when lower housing and separator plate are
removed.
(27) Remove screws attaching valve body lower
housing to upper housing and transfer plate (Fig.
294). Note position of boost valve tube brace for
assembly reference.
(28) Remove lower housing and overdrive separa-
tor plate from transfer plate (Fig. 294).
Fig. 293 Boost Valve Tube
1 - BOOST VALVE TUBE
2 - LOWER HOUSING
3 - DISENGAGE THIS END OF TUBE FIRST
4 - UPPER HOUSING
Fig. 294 Lower Housing
1 - LOWER HOUSING
2 - OVERDRIVE SEPARATOR PLATE
3 - TRANSFER PLATE AND UPPER HOUSING
Fig. 291 Accumulator Housing, Valve Springs, and
Plug
1 - 3-4 SHIFT VALVE SPRING
2 - CONVERTER CLUTCH VALVE SPRING AND PLUG
3 - 3-4 ACCUMULATOR HOUSING
Fig. 292 Boost Valve Tube Brace
1 - BOOST VALVE TUBE
2 - TUBE BRACE (DOUBLE TAB)
21 - 292 AUTOMATIC TRANSMISSION - 48REDR
VALVE BODY (Continued)

(29) Remove the Number 10 check ball from the
transfer plate (Fig. 295). The check ball is approxi-
mately 4.8 mm (3/16 in.) in diameter.
(30) Remove transfer plate from upper housing
(Fig. 296).
(31) Turn transfer plate over so upper housing sep-
arator plate is facing upward.
(32) Remove upper housing separator plate from
transfer plate (Fig. 297). Note position of filter in
separator plate for assembly reference.(33) Remove rear clutch and rear servo check balls
from transfer plate. Note check ball location for
assembly reference (Fig. 298).
Fig. 295 Number 10 Check Ball
1 - NUMBER 10 CHECK BALL (3/169)
Fig. 296 Transfer Plate
1 - UPPER HOUSING
2 - TRANSFER PLATE
Fig. 297 Upper Housing Separator Plate
1 - TRANSFER PLATE
2 - UPPER HOUSING SEPARATOR PLATE
3 - FILTER SCREEN
4 - BRACE
Fig. 298 Rear Clutch and Rear Servo Check Ball
Locations
1 - REAR CLUTCH CHECK BALL
2 - REAR SERVO CHECK BALL
3 - TRANSFER PLATE
DRAUTOMATIC TRANSMISSION - 48RE 21 - 293
VALVE BODY (Continued)

VALVE BODY UPPER HOUSING
(1) Note location of check balls in valve body upper
housing (Fig. 299). Then remove the one large diam-
eter and the five smaller diameter check balls.
(2) Remove governor plug and shuttle valve covers
(Fig. 301).
(3) Remove E-clip that secures shuttle valve sec-
ondary spring on valve stem (Fig. 300).
(4) Remove throttle plug, primary spring, shuttle
valve, secondary spring, and spring guides (Fig. 301).
(5) Remove boost valve retainer, spring and valve
if not previously removed.
(6) Remove throttle plug and 1-2 and 2-3 governor
plugs (Fig. 288).
(7) Turn upper housing around and remove limit
valve and shift valve covers (Fig. 302).
(8) Remove limit valve housing. Then remove
retainer, spring, limit valve, and 2-3 throttle plug
from limit valve housing (Fig. 302).
(9) Remove 1-2 shift control valve and spring (Fig.
302).
(10) Remove 1-2 shift valve and spring (Fig. 302).
(11) Remove 2-3 shift valve and spring from valve
body (Fig. 302).
(12) Remove pressure plug cover (Fig. 302).
(13) Remove line pressure sleeve, throttle pressure
plug and spring (Fig. 302).
Fig. 299 Check Ball Locations In Upper Housing
1 - SMALL DIAMETER CHECK BALLS (5)
2 - LARGE DIAMETER CHECK BALL (1)
Fig. 300 Shuttle Valve E-Clip And Secondary Spring
1 - E-CLIP
2 - SECONDARY SPRING AND GUIDES
3 - SHUTTLE VALVE
21 - 294 AUTOMATIC TRANSMISSION - 48REDR
VALVE BODY (Continued)

Fig. 301 Shuttle and Boost Valve Location
1 - SPRING 8 - SHUTTLE VALVE COVER
2 - RETAINER 9 - SHUTTLE VALVE
3 - BOOST VALVE 10 - SHUTTLE VALVE PRIMARY SPRING
4 - BOOST VALVE PLUG 11 - GOVERNOR PLUG COVER
5 - SPRING GUIDES 12 - THROTTLE PLUG
6 - E-CLIP 13 - UPPER HOUSING
7 - SHUTTLE VALVE SECONDARY SPRING 14 - BOOST VALVE COVER
DRAUTOMATIC TRANSMISSION - 48RE 21 - 295
VALVE BODY (Continued)

Fig. 302 Upper Housing Shift Valve and Pressure Plug Locations
1 - UPPER HOUSING 7 - LIMIT VALVE AND SPRING
2 - 1-2 SHIFT VALVE AND SPRING 8 - RETAINER
3 - 2-3 SHIFT VALVE AND SPRING 9 - 1-2 SHIFT CONTROL VALVE AND SPRING
4 - 2-3 THROTTLE PLUG 10 - PRESSURE PLUG COVER
5 - LIMIT VALVE HOUSING 11 - PLUG SLEEVE
6 - LIMIT VALVE COVER 12 - THROTTLE PRESSURE SPRING AND PLUG
21 - 296 AUTOMATIC TRANSMISSION - 48REDR
VALVE BODY (Continued)

VALVE BODY LOWER HOUSING
(1) Remove timing valve cover.
(2) Remove 3-4 timing valve and spring.
(3) Remove 3-4 quick fill valve, spring and plug.
(4) Remove 3-4 shift valve and spring.
(5) Remove converter clutch valve, spring and plug
(Fig. 303).
(6) Remove converter clutch timing valve, retainer
and valve spring.
Fig. 303 Lower Housing Shift Valves and Springs
1 - 3-4 ACCUMULATOR HOUSING 11 - TIMING VALVE COVER
2 - 3-4 SHIFT VALVE AND SPRING 12 - PLUG
3 - PLUG 13 - 3-4 TIMING VALVE AND SPRING
4 - SPRING RETAINER 14 - LOWER HOUSING
5 - CONVERTER CLUTCH VALVE AND SPRING 15 - ACCUMULATOR END PLATE
6 - CONVERTER CLUTCH TIMING VALVE AND SPRING 16 - 3-4 ACCUMULATOR PISTON AND SPRING
7 - OVERDRIVE SEPARATOR PLATE 17 - E-CLIP
8 - CASE CONNECTOR 18 - 3-4 QUICK FILL SPRING AND VALVE
9 - CONVERTER CLUTCH SOLENOID 19 - SOLENOID GASKET
10 - OVERDRIVE SOLENOID 20 - HARNESS
DRAUTOMATIC TRANSMISSION - 48RE 21 - 297
VALVE BODY (Continued)