Dodge RAM TRUCK 1500 1995 Service Manual page 1424

B R
42RH/46RH/47RH TRANSMISSION IN-VEHICLE SERVICE 21 -141
42RHI4SRH/47RH TRANSMISSION IN-VEHICLE SERVICE
INDEi
page
Aluminum Thread Repair . . 152
Converter Drainback Check Valve Service . . . . . . 150
Fluid and Filter Replacement 141
Fluid Level Check 141
Front Band Adjustment . . . . . . . . . . . . . . . . . . . . 144
Gearshift Indicator Adjustment . . . . . . . . . . . . . . . 142
Gearshift Linkage Adjustment . 142
Governor and Park Lock Service 148
Park/Neutral Position Switch 146
Rear Band Adjustment 145
FLUID LEVEL CHECK
(1) Transmission fluid should be at normal operat­
ing temperature. Drive vehicle if necessary to bring
temperature to normal range of 82°C (180°F).
(2) Position vehicle on level surface. This is ex­
tremely important for an accurate check.
(3) Apply parking brakes and run engine at curb
idle speed.
(4) Shift transmission momentarily into all gear
ranges. Then shift back to Neutral.
(5) Clean top of filler tube and dipstick (to avoid
dirt entry).
(6) Remove dipstick and check fluid level as fol­
lows:
(a) Dipstick has three fluid level indicator marks
(Fig. 1). They are: a MIN dot, an OK Crosshatch
area, and a MAX fill arrow.
(b) Correct maximum level is to MAX arrow. Ac­
ceptable level is to OK mark in Crosshatch area.
(c) Incorrect level is at or below MIN dot.
(d) If fluid level is low, add only enough Mopar
ATF Plus to correct level.
CAUTION: Do not overfill the transmission. Overfill­
ing will cause leakage from the pump vent and be
mistaken for a pump seal leak. Overfilling will also
cause fluid aeration and foaming as excess fluid is
picked up and churned by the gear train. This will
cause shift problems and reduce the life of the fluid
significantly.
(7) If fluid level is too high, excess fluid can be
drained with suction gun and flexible tubing. Tubing
will have to be adapted to suction gun nozzle and be
long enough to extend through fill tube into trans­
mission oil pan. Tubing diameter should be 1/8 to
3/16 inch diameter.
page
Refilling After Overhaul or Fluid/Filter Change . . . 142
Speedometer Service 146
Throttle Valve Cable Replacement . . . . . . . . . . . . 143
Transmission Cooler Flow Testing 150
Transmission Cooler Line and Fitting Service . . . . 149
Transmission Cooler Replacement . . . . . . . . . . . . 151
Transmission Cooler Reverse Flushing . . . . . . . . 151
Transmission Throttle Valve Cable Adjustment . . . 143
Valve Body Service 148
Yoke Seal Replacement 147
DIPSTICK
/ _
/ f x
MINIMUM ! ^ MAXIMUM
LEVEL DOT ACCEPTABLE CORRECT
MARK FLUID FLUID
(ADD FLUID) LEVEL LEVEL J9321-96
Fig. 1 Dipstick Fluid Level Marks
FLUID AND FILTER REPLACEMENT
Normal Change Interval
The fluid and filter should be changed (and the
bands adjusted) at recommended maintenance inter­
vals. Or whenever the transmission has been disas­
sembled for any reason.
Recommended Fluid
The recommended fluid for all Chrysler automatic
transmissions is Mopar ATF Plus, type 7176.
Dexron II is not really recommended and should
only be used when ATF Plus is not available.
Severe Usage Change Interval
Under severe usage, the fluid and filter should be
changed and the bands adjusted at 12,000 mile (19
000 Km) intervals.
Severe usage is defined as:
(a) More than half of vehicle operation occurs in
heavy city traffic during hot weather (above 90° F).
(b) Vehicle is used for Taxi, Police, Limousine, or
similar commercial operations.
(c) Vehicle is used for trailer/boat towing or
heavy load hauling.
F L U I D AMD FILTER REPLACEMENT
PROCEDURE
(1) Raise vehicle, remove oil pan and drain fluid.
(2) Remove three filter screws and remove filter.