2003 DODGE RAM Service Repair Manual

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Page 1993 of 2895

DODGE RAM 2003 Service Repair Manual CONDITION POSSIBLE CAUSES CORRECTION
NO START IN PARK OR
NEUTRAL1. Gearshift Linkage/Cable
Mis-adjusted.1. Adjust linkage/cable.
2. Neutral Sense Wire Open/Cut. 2. Check continuity with test lamp. Rep

Page 1994 of 2895

DODGE RAM 2003 Service Repair Manual CONDITION POSSIBLE CAUSES CORRECTION
OIL LEAKS. 1. Fluid Lines and Fittings Loose/
Leaks/Damaged.1. Tighten fittings. If leaks persist, replace
fittings and lines if necessary.
2. Fill Tube (where tub

CONDITION POSSIBLE CAUSES CORRECTION
OIL LEAKS. 1. Fluid Lines and Fittings Loose/
Leaks/Damaged.1. Tighten fittings. If leaks persist, replace
fittings and lines if necessary.
2. Fill Tube (where tube enters case)
Leaks/Damaged.2. Replace tube seal. Inspect tube for
cracks in fill tube.
3. Pressure Port Plug Loose
Loose/Damaged.3. Tighten to correct torque. Replace plug
or reseal if leak persists.
4. Pan Gasket Leaks. 4. Tighten pan screws (150 in. lbs.). If leaks
persist, replace gasket.
5. Valve Body Manual Lever Shaft
Seal Leaks/Worn.5. Replace shaft seal.
6. Rear Bearing Access Plate Leaks. 6. Replace gasket. Tighten screws.
7. Gasket Damaged or Bolts are
Loose.7. Replace bolts or gasket or tighten both.
8. Adapter/Extension Gasket
Damaged Leaks/Damaged.8. Replace gasket.
9. Park/Neutral Switch, or
Transmission Range Sensor
Leaks/Damaged.9. Replace switch and gasket.
10. Converter Housing Area Leaks. 10. Check for leaks at seal caused by worn
seal or burr on converter hub (cutting seal),
worn bushing, missing oil return, oil in front
pump housing or hole plugged. Check for
leaks past O-ring seal on pump or past
pump-to-case bolts; pump housing porous,
oil coming out vent due to overfill or leak
past front band shaft access plug.
11. Pump Seal Leaks/Worn/
Damaged.11. Replace seal.
12. Torque Converter Weld
Leak/Cracked Hub.12. Replace converter.
13. Case Porosity Leaks. 13. Replace case.
NOISY OPERATION IN
FOURTH GEAR ONLY1. Overdrive Clutch Discs, Plates or
Snap Rings Damaged.1. Remove unit and rebuild clutch pack.
2. Overdrive Piston or Planetary
Thrust Bearing Damaged.2. Remove and disassemble unit. Replace
either thrust bearing if damaged.
3. Output Shaft Bearings Scored/
Damaged.3. Remove and disassemble unit. Replace
either bearing if damaged.
4. Planetary Gears Worn/Chipped. 4. Remove and overhaul overdrive unit.
5. Overdrive Unit Overrunning Clutch
Rollers Worn/Scored.5. Remove and overhaul overdrive unit.
DRAUTOMATIC TRANSMISSION - 46RE 21 - 155
AUTOMATIC TRANSMISSION - 46RE (Continued)

Page 1995 of 2895

DODGE RAM 2003 Service Repair Manual STANDARD PROCEDURE - ALUMINUM
THREAD REPAIR
Damaged or worn threads in the aluminum trans-
mission case and valve body can be repaired by the
use of Heli-CoilsŸ, or equivalent. This repair con-
sists

Page 1996 of 2895

DODGE RAM 2003 Service Repair Manual (10) Rotate crankshaft in clockwise direction until
converter bolts are accessible. Then remove bolts one
at a time. Rotate crankshaft with socket wrench on
dampener bolt.
(11) Mark propeller shaft an

Page 1997 of 2895

DODGE RAM 2003 Service Repair Manual (21) Disconnect fluid cooler lines at transmission
(Fig. 18).
(22) Remove fill tube bracket bolts and pull tube
out of transmission. Retain fill tube seal. On 4X4
models, it will also be necessary to

Page 1998 of 2895

DODGE RAM 2003 Service Repair Manual (6)Remove filter from valve body (Fig. 21). Keep fil-
ter screws separate from other valve body screws. Filter
screws are longer and should be kept with filter.
(7) Remove the transmission range senso

Page 1999 of 2895

DODGE RAM 2003 Service Repair Manual (11) Remove pump oil seal with suitable pry tool or
slide-hammer mounted screw.
(12) Remove front band lever pin access plug (Fig.
25). Use square end of 1/4 in. drive extension to
remove plug as show

Page 2000 of 2895

DODGE RAM 2003 Service Repair Manual (14) Remove oil pump gasket (Fig. 29). Note gas-
ket position in case for assembly reference.
(15) Loosen front band adjusting screw until band
is completely loose.
(16) Remove front band strut and an

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