
ASSEMBLY
To assemble, reverse the above procedure.
KICKDOWN SERVO (CONTROLLED LOAD)-
RECONDITION
DISASSEMBLY
ASSEMBLY
To assemble, reverse the above procedure.
Fig. 84 Accumulator Spring and Piston
Fig. 85 Kickdown Servo Snap Ring
Fig. 86 Kickdown Servo Rod Guide and Snap Ring
Fig. 87 Kickdown Piston Return Spring and Piston
Fig. 88 Controlled Load Kickdown Servo
NSTRANSAXLE AND POWER TRANSFER UNIT 21 - 37
DISASSEMBLY AND ASSEMBLY (Continued)

WARNING: WEAR PROTECTIVE EYEWEAR THAT
MEETS THE REQUIREMENTS OF OSHA AND ANSI
Z87.1±1968. WEAR STANDARD INDUSTRIAL RUB-
BER GLOVES.
KEEP LIGHTED CIGARETTES, SPARKS, FLAMES,
AND OTHER IGNITION SOURCES AWAY FROM THE
AREA TO PREVENT THE IGNITION OF COMBUSTI-
BLE LIQUIDS AND GASES. KEEP A CLASS (B) FIRE
EXTINGUISHER IN THE AREA WHERE THE
FLUSHER WILL BE USED.
KEEP THE AREA WELL VENTILATED.
DO NOT LET FLUSHING SOLVENT COME IN CON-
TACT WITH YOUR EYES OR SKIN: IF EYE CONTAM-
INATION OCCURS, FLUSH EYES WITH WATER FOR
15 TO 20 SECONDS. REMOVE CONTAMINATED
CLOTHING AND WASH AFFECTED SKIN WITH
SOAP AND WATER. SEEK MEDICAL ATTENTION.
COOLER FLUSH USING TOOL 6906A
(1) Remove cover plate filler plug on Tool 6906A.
Fill reservoir 1/2 to 3/4 full of fresh flushing solution.
Flushing solvents are petroleum based solutions gen-
erally used to clean automatic transmission compo-
nents.DO NOTuse solvents containing acids, water,
gasoline, or any other corrosive liquids.
(2) Reinstall filler plug on Tool 6906A.
(3) Verify pump power switch is turned OFF. Con-
nect red alligator clip to positive (+) battery post.
Connect black (-) alligator clip to a good ground.
(4) Disconnect the cooler lines at the transmission.
NOTE: When flushing transmission cooler and
lines, ALWAYS reverse flush.
(5) Connect the BLUE pressure line to the OUT-
LET (From) cooler line.
(6) Connect the CLEAR return line to the INLET
(To) cooler line
(7) Turn pump ON for two to three minutes to
flush cooler(s) and lines. Monitor pressure readings
and clear return lines. Pressure readings should sta-
bilize below 20 psi. for vehicles equipped with a sin-
gle cooler and 30 psi. for vehicles equipped with dual
coolers. If flow is intermittent or exceeds these pres-
sures, replace cooler.
(8) Turn pump OFF.
(9) Disconnect CLEAR suction line from reservoir
at cover plate. Disconnect CLEAR return line at
cover plate, and place it in a drain pan.
(10) Turn pump ON for 30 seconds to purge flush-
ing solution from cooler and lines. Turn pump OFF.
(11) Place CLEAR suction line into a one quart
container of MopartATF PLUS 3 Type 7176 auto-
matic transmission fluid.
(12) Turn pump ON until all transmission fluid is
removed from the one quart container and lines. Thispurges any residual cleaning solvent from the trans-
mission cooler and lines. Turn pump OFF.
(13) Disconnect alligator clips from battery. Recon-
nect flusher lines to cover plate, and remove flushing
adapters from cooler lines.
OIL PUMP VOLUME CHECK
After the new or repaired transmission has been
installed, fill to the proper level with Mopar ATF
PLUS 3 (Type 7176) automatic transmission fluid.
The volume should be checked using the following
procedure:
(1) Disconnect theFrom coolerline at the trans-
mission and place a collecting container under the
disconnected line.
CAUTION: With the fluid set at the proper level,
fluid collection should not exceed (1) quart or inter-
nal damage to the transmission may occur.
(2) Run the engineat curb idle speed, with the
shift selector in neutral.
(3) If fluid flow is intermittent or it takes more
than 20 seconds to collect one quart of ATF, discon-
nect theTo Coolerline at the transaxle.
(4) Refill the transaxle to proper level and recheck
pump volume.
(5) If flow is found to be within acceptable limits,
replace the cooler. Then fill transmission to the
proper level, using Mopar ATF PLUS 3 (Type 7176)
automatic transmission fluid.
(6) If fluid flow is still found to be inadequate,
check the line pressure using the Transaxle Hydrau-
lic Pressure Test procedure.
(7) Check the cooler for debris on the external sur-
faces. Clean as necessary.
TRANSAXLE QUICK LEARN PROCEDURE
The quick learn procedure requires the use of the
DRBIII scan tool.
This program allows the electronic transaxle sys-
tem to recalibrate itself. This will provide the best
possible transaxle operation. The quick learn proce-
dure should be performed if any of the following pro-
cedures are performed:
²Transaxle Assembly Replacement
²Transmission Control Module Replacement
²Solenoid Pack Replacement
²Clutch Plate and/or Seal Replacement
²Valve Body Replacement or Recondition
To perform the Quick Learn Procedure, the follow-
ing conditions must be met:
²The brakes must be applied
²The engine speed must be above 500 rpm
²The throttle angle (TPS) must be less than 3
degrees
21 - 82 TRANSAXLE AND POWER TRANSFER UNITNS
SERVICE PROCEDURES (Continued)

DIFFERENTIAL BEARING RETAINER AXLE
SEAL
REMOVAL
(1) Remove axle shaft. Refer to Group 2, Suspen-
sion and Driveshafts for service procedures.
(2) Insert a flat±blade pry tool into the axle seal
bore.
(3) Using the pry tool, carefully pop out the seal
taking care not to nick the seal bore.
INSTALLATION
(1) Clean axle shaft seal bore of any excess seal-
ant.
(2) Align axle shaft seal with axle shaft seal bore.
(3) Position axle seal at extension housing.
(4) Using Tool L-4520 and Tool C-4171, tap seal
into position.
SHIFT SHAFT SEALS
It isnotnecessary to remove the shift shaft cover
from the transaxle to service the shift shaft seals.
REMOVAL
(1) Remove the shift lever from the seal that is to
be serviced. Refer to shift lever removal for service
procedure.
(2) Using a pick tool, pry up on the shift shaft seal
and remove seal from bore.
INSTALLATION
(1) Position new shift shaft seal in bore.
(2) Install shift shaft seal into bore using an
appropriate size deep±well socket.
TRANSAXLE
The following items can be serviced without remov-
ing the transaxle from the vehicle:
²Gearshift housing
²5th speed synchronizer
²5th speed gear
²Roller detents and springs
²Speedometer pinion
²Vehicle speed sensor
²Bearing retainer plate.
²All external covers
²Shift shaft seals
²Axle shaft seals
To service any other component of the A-598 tran-
saxle you must remove it from the vehicle.
REMOVAL
(1) Disconnect battery negative cable.
(2) Remove air intake hose. Disconnect air mass
meter connector.
(3) Remove intercooler hose.(4) Remove connectors for back-up lamp (Fig. 28)
and crank position sensor (Fig. 29).
(5) Remove crank position sensor (2.5L VM Diesel
only).
(6) Remove wiring harness bracket at transaxle
(Fig. 30).
(7) Remove crossover and shift selector cables (Fig.
31).
(8) Remove the two top bolts at the rear engine
mount bracket.
(9) Remove bolts securing the coolant reservoir to
the top of the engine. Move the coolant reservoir out
of the way.
(10) Install an engine support chain to the cylinder
head assembly (Fig. 32).
Fig. 28 Back-up Lamp Connector
Fig. 29 Crankshaft Position Sensor
21 - 12 A±598 MANUAL TRANSAXLENS/GS
REMOVAL AND INSTALLATION (Continued)

HEX
CODEGENERIC
SCAN
TOOL
CODEDRB SCAN TOOL
DISPLAYDESCRIPTION OF DIAGNOSTIC
TROUBLE CODE
52* SPD CTRL PWR RLY; or S/C 12v
Driver CKTMalfunction detected with power feed to speed
control servo solenoids.
5A A/C Pressure Sensor Volts Too
HighSensor input voltage is above 4.9 volts.
5B A/C Pressure Sensor Volts Too Low Sensor input voltage is below .098 volts.
60 P1698 No CCD Messages From TCM No messages received from Transmission Control
Module.
61 No CCD Message From Body
Control ModuleNo messages received from Body Control Module.
65* Fuel Pump Relay Control Circuit An open or shorted condition detected in the fuel
pump relay control circuit.
66 P0133 Right Bank Upstream O2S Slow
ResponseOxygen sensor response slower than minimum
required switching frequency.
67 P0135 Right Rear (or just) Upstream O2S
Heater FailureUpstream oxygen sensor heating element circuit
malfunction.
69 P0141 Right Rear (or just) Downstream
O2S Heater FailureOxygen sensor heating element circuit malfunction.
6A P0300 Multiple Cylinder Mis-fire Misfire detected in multiple cylinders.
6B P0301 Cylinder #1 Mis-fire Misfire detected in cylinder #1.
6C P0302 Cylinder #2 Mis-fire Misfire detected in cylinder #2.
6D P0303 Cylinder #3 Mis-fire Misfire detected in cylinder #3.
6E P0304 Cylinder #4 Mis-fire Misfire detected in cylinder #4.
70 P0420 Right Rear (or just) Catalyst
Efficency FailureCatalyst efficiency below required level.
71* P0441 Evap Purge Flow Monitor Failure Insufficient or excessive vapor flow detected during
evaporative emission system operation.
72 P1899 P/N Switch Stuck in Park or in Gear Incorrect input state detected for the Park/Neutral
switch, auto. trans. only.
76 P0172 Right Rear (or just) Fuel System
RichA rich air/fuel mixture has been indicated by an
abnormally lean correction factor.
77 P0171 Right Rear (or just) Fuel System
LeanA lean air/fuel mixture has been indicated by an
abnormally rich correction factor.
7E P0138 Right Rear (or just) Downstream
O2S Shorted to VoltageOxygen sensor input voltage maintained above the
normal operating range.
80 P0128 Closed Loop Temp Not Reached Engine does not reach 20ÉF within 5 minutes with
a vehicle speed signal.
81 P0140 Right Rear (or just) Downstream
O2S Stays at CenterNeither reich or lean condition detected from the
downstream oxygen sensor.
84 P0121 TPS Voltage Does Not Agree With
MAPTPS signal does not correlate to MAP sensor
89 P0700 EATX Controller DTC Present An automatic transmission input DTC has been set
in the transmission controller. Refer to Group 21.
8A P1294 Target Idle Not Reached Actual idle speed does not equal target idle speed.
25 - 6 EMISSION CONTROL SYSTEMSNS
DESCRIPTION AND OPERATION (Continued)