Hot Check
1. Park the vehicle on a flat, level surface. Apply
the parking brakes and chock the rear tires.
2. Shift the transmission to NEUTRAL.
3. Operate the engine at idle (500–800 rpm) until
normal operating temperature is reached. Check
that the sump temperature is 160° to 200°F (71°
to 93°C). Check that the converter-out tempera-
ture is 180° to 220°F (82° to 104°C).
4. With the engine idling, remove the dipstick from
the tube and wipe it clean.
5. Insert the dipstick into the tube and remove it.
6. Check the fluid level reading and repeat the
check procedure to verify the reading. Safe oper-
ating level is within the HOT RUN band on the
dipstick. The HOT RUN band is between the
HOT FULL and HOT ADD marks.
If the fluid level is not within the HOT RUN band,
add or drain fluid as needed to bring the fluid
level within the HOT RUN band. See Fig. 10 for
the AT, MD, and HD series, and Fig. 11 for the
MT series.
26–06 Chrysler Transmission
Fluid and Filter
Changing
Replacement
1. Park the vehicle on a level surface and apply the
parking brakes.
CAUTION
To prevent dirt from entering the transmission,
use only clean containers and fillers for the trans-
mission fluid. Do not use containers or fillers that
have been used for water or antifreeze. Dirt, water,
or antifreeze could damage the transmission.
2. While the transmission fluid is warm, raise the
vehicle, remove the oil pan, and drain the fluid.
IMPORTANT: Examine the used transmission
fluid for dirt, coolant or water, and metal par-
ticles. If any of these contaminants are present,
there may be a problem within the transmission.
3. Remove the three filter screws. Remove the filter
from the valve body. See Fig. 12.
4. Install the new filter.
4.1 Position the new filter on the valve body
and install the filter screws finger-tight.
4.2 Tighten the filter screws 35 lbf·in (400
N·cm).
4.3 Install the oil pan bolts and tighten them
13 lbf·ft (17 N·m).
Refilling After Fluid and Filter Change
1. Lower the vehicle and remove the dipstick. Using
a clean funnel in the fill tube, add 2 quarts (1.9
liters) of Mopar ATF Plus, Type 7176 transmis-
sion fluid.
2. Check and adjust the fluid level using the proce-
dures under "Checking the Fluid Level."
Checking the Fluid Level
1. With the transmission in neutral and the parking
brake applied, run the engine at idle for at least
one minute to clear the fluid system of air.
2. Shift the transmission briefly through all the gear
ranges. Then shift back into neutral.
3. Wipe the dipstick clean and check the fluid tem-
perature.
NOTE: Fluid at the operating temperature of
approximately 180°F (82°C) is hot. Hot fluid
cannot be held comfortably between the finger-
tips. The fluid will be hot if the vehicle has been
driven 15 miles (23 km) or more.
Fluid at temperatures of approximately 85° to
125°F (29° to 52°C) is warm.
4. Wipe the dipstick clean again and reinsert it until
seated. Check the fluid level and add or drain
fluid as necessary.
4.1 If the fluid is warm, any level above the
MIN dot (see Fig. 13) is satisfactory. If
the level is at or below the MIN dot, use a
funnel to add fluid until the level is above
this dot. At the next opportunity, check the
fluid when it is hot.
Transmission 26
Business Class Trucks Maintenance Manual, February 2003 26/13
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