2001 DODGE RAM Ac control

(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.
282).
(22) Carefully rotate 3-4 accumulator housing
upward and remove 3-4 shift valve spring and con-
verter clutch valve plug and spring (Fig. 283).
(23) Remove left-side screw and remove 3-4 accu-
mulator housing from valve body (Fig. 284).
(24) Bend back tabs on boost valve tube brace (Fig.
285).
Fig. 281 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. 280 Adjusting Screw Bracket And Spring
1 - SWITCH VALVE SPRING
2 - LINE PRESSURE SCREW
3 - THROTTLE PRESSURE ADJUSTING SCREW
4 - ADJUSTING SCREW BRACKET
5 - PRESSURE REGULATOR VALVE SPRING
BR/BEAUTOMATIC TRANSMISSION - 44RE 21 - 457
VALVE BODY (Continued)

VALVE BODY UPPER HOUSING
(1) Note location of check balls in valve body upper
housing (Fig. 292). Then remove the one large diam-
eter and the six smaller diameter check balls.
(2) Remove governor plug and shuttle valve covers
(Fig. 294).
(3) Remove E-clip that secures shuttle valve sec-
ondary spring on valve stem (Fig. 293).
(4) Remove throttle plug, primary spring, shuttle
valve, secondary spring, and spring guides (Fig. 294).
(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. 281).
(7) Turn upper housing around and remove limit
valve and shift valve covers (Fig. 295).
(8) Remove limit valve housing. Then remove
retainer, spring, limit valve, and 2-3 throttle plug
from limit valve housing (Fig. 295).
(9) Remove 1-2 shift control valve and spring (Fig.
295).
(10) Remove 1-2 shift valve and spring (Fig. 295).
(11) Remove 2-3 shift valve and spring from valve
body (Fig. 295).
(12) Remove pressure plug cover (Fig. 295).
(13) Remove line pressure plug, sleeve, throttle
pressure plug and spring (Fig. 295).
Fig. 289 Transfer Plate
1 - UPPER HOUSING
2 - TRANSFER PLATE
Fig. 290 Upper Housing Separator Plate
1 - TRANSFER PLATE
2 - UPPER HOUSING SEPARATOR PLATE
3 - FILTER SCREEN
4 - BRACE
Fig. 291 Rear Clutch And Rear Servo Check Ball
1 - REAR CLUTCH CHECK BALL
2 - REAR SERVO CHECK BALL
3 - TRANSFER PLATE
21 - 460 AUTOMATIC TRANSMISSION - 44REBR/BE
VALVE BODY (Continued)

Fig. 295 Upper Housing Shift Valve And Pressure Plug Locations
1 - UPPER HOUSING 8 - RETAINER
2 - 1-2 SHIFT VALVE AND SPRING 9 - 1-2 SHIFT CONTROL VALVE AND SPRING
3 - 2-3 SHIFT VALVE AND SPRING 10 - PRESSURE PLUG COVER
4 - 2-3 THROTTLE PLUG 11 - LINE PRESSURE PLUG
5 - LIMIT VALVE HOUSING 12 - PLUG SLEEVE
6 - LIMIT VALVE COVER 13 - THROTTLE PRESSURE SPRING AND PLUG
7 - LIMIT VALVE AND SPRING
BR/BEAUTOMATIC TRANSMISSION - 44RE 21 - 463
VALVE BODY (Continued)

UPPER HOUSING VALVE AND PLUG
Refer to (Fig. 305), (Fig. 306) and (Fig. 307) to per-
form the following steps.
(1) Lubricate valves, plugs, springs with clean
transmission fluid.
(2) Assemble regulator valve line pressure plug,
sleeve, throttle plug and spring. Insert assembly in
upper housing and install cover plate. Tighten cover
plate screws to 4 N´m (35 in. lbs.) torque.
(3) Install 1-2 and 2-3 shift valves and springs.
(4) Install 1-2 shift control valve and spring.
(5) Install retainer, spring, limit valve, and 2-3
throttle plug from limit valve housing.
(6) Install limit valve housing and cover plate.
Tighten screws to 4 N´m (35 in. lbs.).
(7) Install shuttle valve as follows:
(a) Insert plastic guides in shuttle valve second-
ary spring and install spring on end of valve.
(b) Install shuttle valve into housing.
(c) Hold shuttle valve in place.
(d) Compress secondary spring and install E-clip
in groove at end of shuttle valve.
(e) Verify that spring and E-clip are properly
seated before proceeding.
(8) Install shuttle valve cover plate. Tighten cover
plate screws to 4 N´m (35 in. lbs.) torque.
(9) Install 1-2 and 2-3 valve governor plugs in
valve body.
(10) Install shuttle valve primary spring and
throttle plug.
(11) Align and install governor plug cover. Tighten
cover screws to 4 N´m (35 in. lbs.) torque.
Fig. 302 Installing Transfer Plate On Upper Housing
1 - FILTER SCREEN
2 - TRANSFER PLATE/SEPARATOR PLATE ASSEMBLY
3 - UPPER HOUSING
Fig. 303 Lower Housing Separator Plate
1 - BE SURE TO ALIGN BORES
2 - TRANSFER PLATE
3 - LOWER HOUSING (OVERDRIVE) SEPARATOR PLATE
Fig. 304 Installing Lower Housing On Transfer Plate
And Upper Housing
1 - VALVE BODY SCREWS (13)
2 - LOWER HOUSING
3 - UPPER HOUSING
4 - TRANSFER PLATE
21 - 468 AUTOMATIC TRANSMISSION - 44REBR/BE
VALVE BODY (Continued)

Fig. 306 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
21 - 470 AUTOMATIC TRANSMISSION - 44REBR/BE
VALVE BODY (Continued)

Fig. 307 Upper Housing Shift Valve And Pressure Plug Locations
1 - UPPER HOUSING 8 - RETAINER
2 - 1-2 SHIFT VALVE AND SPRING 9 - 1-2 SHIFT CONTROL VALVE AND SPRING
3 - 2-3 SHIFT VALVE AND SPRING 10 - PRESSURE PLUG COVER
4 - 2-3 THROTTLE PLUG 11 - LINE PRESSURE PLUG
5 - LIMIT VALVE HOUSING 12 - PLUG SLEEVE
6 - LIMIT VALVE COVER 13 - THROTTLE PRESSURE SPRING AND PLUG
7 - LIMIT VALVE AND SPRING
BR/BEAUTOMATIC TRANSMISSION - 44RE 21 - 471
VALVE BODY (Continued)

ADJUSTMENTS - VALVE BODY
CONTROL PRESSURE ADJUSTMENTS
There are two control pressure adjustments on the
valve body;
²Line Pressure
²Throttle Pressure
Line and throttle pressures are interdependent
because each affects shift quality and timing. As a
result, both adjustments must be performed properly
and in the correct sequence. Adjust line pressure first
and throttle pressure last.
LINE PRESSURE ADJUSTMENT
Measure distance from the valve body to the inner
edge of the adjusting screw with an accurate steel
scale (Fig. 320).
Distance should be 33.4 mm (1-5/16 in.).
If adjustment is required, turn the adjusting screw
in, or out, to obtain required distance setting.
NOTE: The 33.4 mm (1-5/16 in.) setting is an
approximate setting. Manufacturing tolerances may
make it necessary to vary from this dimension to
obtain desired pressure.
One complete turn of the adjusting screw changes
line pressure approximately 1-2/3 psi (9 kPa).
Turning the adjusting screw counterclockwise
increases pressure while turning the screw clockwise
decreases pressure.
THROTTLE PRESSURE ADJUSTMENT
Insert Gauge Tool C-3763 between the throttle
lever cam and the kickdown valve stem (Fig. 321).
Push the gauge tool inward to compress the kick-
down valve against the spring and bottom the throt-
tle valve.Maintain pressure against kickdown valve spring.
Turn throttle lever stop screw until the screw head
touches throttle lever tang and the throttle lever cam
touches gauge tool.
NOTE: The kickdown valve spring must be fully
compressed and the kickdown valve completely
bottomed to obtain correct adjustment.
Fig. 319 Accumulator Piston Components
1 - INNER SPRING
2 - ACCUMULATOR PISTON
3 - OUTER SPRING
4 - SEAL RINGS
Fig. 320 Line Pressure Adjustment
1 - WRENCH
2 - 1±5/16 INCH
Fig. 321 Throttle Pressure Adjustment
1 - HEX WRENCH (IN THROTTLE LEVER ADJUSTING SCREW)
2 - SPECIAL TOOL C-3763 (POSITIONED BETWEEN THROTTLE
LEVER AND KICKDOWN VALVE)
21 - 476 AUTOMATIC TRANSMISSION - 44REBR/BE
VALVE BODY (Continued)

AUTOMATIC TRANSMISSION - 46RE
TABLE OF CONTENTS
page page
AUTOMATIC TRANSMISSION - 46RE
DESCRIPTION..........................478
OPERATION............................480
DIAGNOSIS AND TESTING................486
AUTOMATIC TRANSMISSION.............486
PRELIMINARY........................486
ROAD TESTING.......................486
HYDRAULIC PRESSURE TEST...........487
AIR TESTING TRANSMISSION CLUTCH
AND BAND OPERATION.................490
CONVERTER HOUSING FLUID LEAK......491
DIAGNOSIS CHARTS...................492
STANDARD PROCEDURE.................502
ALUMINUM THREAD REPAIR.............502
REMOVAL.............................502
DISASSEMBLY..........................503
CLEANING.............................509
INSPECTION...........................510
ASSEMBLY............................510
INSTALLATION..........................518
SCHEMATICS AND DIAGRAMS.............520
SPECIFICATIONS........................532
SPECIAL TOOLS........................534
ACCUMULATOR
DESCRIPTION..........................537
OPERATION............................537
INSPECTION...........................538
BANDS
DESCRIPTION..........................538
OPERATION............................539
ADJUSTMENTS.........................539
ELECTRONIC GOVERNOR
DESCRIPTION..........................540
OPERATION............................541
REMOVAL.............................542
INSTALLATION..........................543
EXTENSION HOUSING BUSHING
REMOVAL.............................544
INSTALLATION..........................544
EXTENSION HOUSING SEAL
REMOVAL.............................544
INSTALLATION..........................544
FLUID AND FILTER
DIAGNOSIS AND TESTING................545
EFFECTS OF INCORRECT FLUID LEVEL . . . 545
CAUSES OF BURNT FLUID..............545
FLUID CONTAMINATION................545
STANDARD PROCEDURE.................545
FLUID LEVEL CHECK...................545FLUID AND FILTER REPLACEMENT.......547
TRANSMISSION FILL...................547
FRONT CLUTCH
DESCRIPTION..........................548
OPERATION............................548
DISASSEMBLY..........................549
INSPECTION...........................550
ASSEMBLY............................550
FRONT SERVO
DESCRIPTION..........................551
OPERATION............................552
DISASSEMBLY..........................552
CLEANING.............................552
INSPECTION...........................553
ASSEMBLY............................553
OIL PUMP
DESCRIPTION..........................554
OPERATION............................554
STANDARD PROCEDURE.................554
OIL PUMP VOLUME CHECK..............554
DISASSEMBLY..........................555
CLEANING.............................557
INSPECTION...........................557
ASSEMBLY............................558
OUTPUT SHAFT FRONT BEARING
REMOVAL.............................559
INSTALLATION..........................560
OUTPUT SHAFT REAR BEARING
REMOVAL.............................560
INSTALLATION..........................560
OVERDRIVE CLUTCH
DESCRIPTION..........................560
OPERATION............................560
OVERDRIVE UNIT
REMOVAL.............................560
DISASSEMBLY..........................562
CLEANING.............................568
INSPECTION...........................569
ASSEMBLY............................569
INSTALLATION..........................577
OVERDRIVE SWITCH
DESCRIPTION..........................578
OPERATION............................579
DIAGNOSIS AND TESTING................579
OVERDRIVE ELECTRICAL CONTROLS.....579
REMOVAL.............................579
INSTALLATION..........................579
BR/BEAUTOMATIC TRANSMISSION - 46RE 21 - 477