Dodge 2001 Ram 1500 Owner's Manual page 1794

BR/BE
AUTOMATIC TRANSMISSION - 42RE (Continued)
CONDITION
NOISY OPERATION IN
FOURTH GEAR ONLY
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-Coils™, or equivalent. This repair con-
sists of drilling out the worn-out damaged threads.
Then tap the hole with a special Heli-Coil™ tap, or
equivalent, and installing a Heli-Coil™ insert, or
equivalent, into the hole. This brings the hole back to
its original thread size.
Heli-Coil™, or equivalent, tools and inserts are
readily available from most automotive parts suppliers.
REMOVAL
The overdrive unit can be removed and serviced
separately. It is not necessary to remove the entire
transmission assembly to perform overdrive unit
repairs.
(1) Disconnect battery negative cable.
(2) Disconnect and lower or remove necessary
exhaust components.
(3) Remove engine-to-transmission
equipped (Fig. 13).
(4) Disconnect fluid cooler lines at transmission.
(5) Remove starter motor. (Refer to 8 - ELECTRI-
CAL/STARTING/STARTER MOTOR - REMOVAL)
(6) Disconnect and remove the crankshaft position
sensor. (Refer to 14 - FUEL SYSTEM/FUEL INJEC-
TION/CRANKSHAFT
REMOVAL) Retain the sensor attaching bolts.
(7) Remove torque converter access cover.
(8) If transmission is being removed for overhaul,
remove transmission oil pan, drain fluid and reinstall
pan.
(9) Remove fill tube bracket bolts and pull tube
out of transmission. Retain fill tube seal (Fig. 13). On
4 x 4 models, it will also be necessary to remove bolt
POSSIBLE CAUSES
11. Pump Seal Leaks/Worn/
Damaged.
12. Torque Converter Weld
Leak/Cracked Hub.
13. Case Porosity Leaks.
1. Overdrive Clutch Discs, Plates or
Snap Rings Damaged.
2. Overdrive Piston or Planetary
Thrust Bearing Damaged.
3. Output Shaft Bearings Scored/
Damaged.
4. Planetary Gears Worn/Chipped.
5. Overdrive Unit Overrunning Clutch
Rollers Worn/Scored.
struts,
POSITION SENSOR
AUTOMATIC TRANSMISSION - 42RE
11. Replace seal.
12. Replace converter.
13. Replace case.
1. Remove unit and rebuild clutch pack.
2. Remove and disassemble unit. Replace
either thrust bearing if damaged.
3. Remove and disassemble unit. Replace
either bearing if damaged.
4. Remove and overhaul overdrive unit.
5. Remove and overhaul overdrive unit.
Fig. 13 Transmission-To-Engine Strut Attachment
if
1 - ENGINE BLOCK
2 - STRUT (PASSENGER SIDE)
3 - ENGINE MOUNT
4 - STRUT (DRIVER SIDE)
attaching transfer case vent tube to converter hous-
ing (Fig. 14).
-
(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 and axle yokes for
assembly alignment. Then disconnect and remove
propeller shaft. On 4 x 4 models, remove both propel-
ler shafts. (Refer to 3 - DIFFERENTIAL & DRIV-
21 - 159
CORRECTION