Jeep Cherokee 2000, Service Manual

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CLEANING
(1) Using a suitable solvent, clean pan and magnet.
(2) Using a suitable gasket scraper, clean gasket
material from gasket surface of transmission case
and the gasket flange around the pan.
INSTALLATION
(1) Place replacement filter in position on valve
body.
(2) Install screws to hold filter to valve body (Fig.
66). Tighten screws to 4 N·m (35 in. lbs.) torque.
(3) Place new gasket in position on pan. and
install pan on transmission.
(4) Place pan in position on transmission.
(5) Install screws to hold pan to transmission (Fig.
65). Tighten bolts to 17 N·m (150 in. lbs.) torque.
(6) Install the transmission/skip plate.
(7) Lower
vehicle and fill transmission with
Mopar
t
ATF Plus 3, type 7176 fluid.
TRANSMISSION FILL PROCEDURE
To avoid overfilling transmission after a fluid
change or overhaul, perform the following procedure:
(1) Remove dipstick and insert clean funnel in
transmission fill tube.
(2) Add following initial quantity of Mopar
t
ATF
Plus 3 to transmission:
(a) If only fluid and filter were changed, add 3
pints (1-1/2 quarts) of ATF Plus 3 to transmission.
(b) If transmission was completely overhauled,
torque converter was replaced or drained, and
cooler was flushed, add 12 pints (6 quarts) of ATF
Plus 3 to transmission.
(3) Apply parking brakes.
(4) Start and run engine at normal curb idle speed.
(5) Apply service brakes, shift transmission through
all gear ranges then back to NEUTRAL, set parking
brake, and leave engine running at curb idle speed.
(6) Remove funnel, insert dipstick and check fluid
level. If level is low, add fluid to bring level to
MIN mark on dipstick. Check to see if the oil level
is equal on both sides of the dipstick. If one side is
noticably higher than the other, the dipstick has
picked up some oil from the dipstick tube. Allow the
oil to drain down the dipstick tube and re-check.
(7) Drive vehicle until transmission fluid is at nor-
mal operating temperature.
(8) With the engine running at curb idle speed, the
gear selector in NEUTRAL, and the parking brake
applied, check the transmission fluid level.
CAUTION: Do not overfill transmission, fluid foam-
ing and shifting problems can result.
(9) Add fluid to bring level up to MAX arrow mark.
When fluid level is correct, shut engine off, release
park brake, remove funnel, and install dipstick in fill
tube.
CONVERTER DRAINBACK CHECK VALVE
SERVICE
The converter drainback check valve is located in
the cooler outlet (pressure) line near the radiator
tank. The valve prevents fluid drainback when the
vehicle is parked for lengthy periods. The valve check
ball is spring loaded and has an opening pressure of
approximately 2 psi.
The valve is serviced as an assembly; it is not repair-
able. Do not clean the valve if restricted, or contami-
nated by sludge, or debris. If the valve fails, or if a
transmission malfunction occurs that generates signifi-
cant amounts of sludge and/or clutch particles and
metal shavings, the valve must be replaced.
The valve must be removed whenever the cooler
and lines are reverse flushed. The valve can be flow
tested when necessary. The procedure is exactly the
same as for flow testing a cooler.
If the valve is restricted, installed backwards, or in
the wrong line, it will cause an overheating condition
and possible transmission failure.
CAUTION: The drainback valve is a one-way flow
device. It must be properly oriented in terms of flow
direction for the cooler to function properly. The
valve must be installed in the pressure line. Other-
wise flow will be blocked and would cause an over-
heating condition and eventual transmission failure.
OIL PUMP VOLUME CHECK
Measuring the oil pump output volume will deter-
mine if sufficient oil flow to the transmission oil
Fig. 66 Transmission Filter–Typical
1 – FILTER
2 – TRANSMISSION
21 - 142 AUTOMATIC TRANSMISSION—30RH
XJ
SERVICE PROCEDURES (Continued)