1999 DODGE NEON brake fluid

malfunction has occurred with one of the proportion-
ing valves (Fig. 15).
One proportioning valve (Fig. 16) controls the right
rear brake, and the other proportioning valve con-
trols the left rear brake. Therefore, a road test to
determine which rear brake skids first is essential.
If a malfunctioning proportioning valve is sus-
pected on a vehicle equipped with ABS brakes, refer
to Proportioning Valve Test With ABS Brakes in the
Proportioning Valves Section in Group 5 Brakes of
this service manual.
BRAKE FLUID CONTAMINATION
Indications of fluid contamination are swollen or
deteriorated rubber parts.
Swollen rubber parts indicate the presence of
petroleum in the brake fluid.
To test for contamination, put a small amount of
drained brake fluid in clear glass jar. If fluid sepa-
rates into layers, there is mineral oil or other fluid
contamination of the brake fluid.
If brake fluid is contaminated, drain and thor-
oughly flush system. Replace master cylinder, propor-
tioning valve, caliper seals, wheel cylinder seals,
Antilock Brakes hydraulic unit and all hydraulic
fluid hoses.
TEST DRIVING ABS COMPLAINT VEHICLE
Most ABS complaints will require a test drive as a
part of the diagnostic procedure. The purpose of the
test drive is to duplicate the condition.
NOTE: Remember conditions that result in the
turning on of the Red BRAKE Warning Lamp may
indicate reduced braking ability. The following pro-
cedure should be used to test drive an ABS com-
plaint vehicle.
Before test driving a brake complaint vehicle, note
whether the Red or Amber Brake Warning Lamp is
turned on. If it is the Red Brake Warning Lamp,
refer to the hydraulic system section in the brake
group of this manual. If the ABS Warning lamp
was/is on, test drive the vehicle as described below, to
verify the complaint. While the ABS Warning Lamp
is on, the ABS is not functional. The standard brake
system and the ability to stop the car may not be
affected if only the ABS Warning Lamp is on.
Discuss with the owner of the vehicle or note any
other electrical problems or conditions that may be
occurring on the vehicle. They may have an effect on
the antilock brake system's function.
(1) Turn the key to the off position and then back
to the on position. Note whether the ABS Warning
Lamp continues to stay on. If it does, refer to the
diagnostic manual covering the ITT Teves Mark 20
ABS system for the required test procedures.
(2) If the ABS Warning Lamp goes out, shift into
gear and drive the car to a speed of 20 kph (12 mph)
to complete the ABS start up cycle. If at this time the
ABS Warning Lamp goes on refer to the ITT Teves
Mark 20 Diagnostic Manual.
(3) If the ABS Warning Lamp remains OUT, drive
the vehicle a short distance. During this test drive be
sure that the vehicle achieves at least 40 mph. Brake
to at least one complete stop in an ABS cycle, and
again accelerate to 25 mph.
(4) If a functional problem with the ABS system is
determined while test driving a vehicle, refer to the
diagnostic manual covering the ITT Teves Mark 20
ABS system for the required test procedures and
proper use of the DRB diagnostic scan tool.
SERVICE PROCEDURES
BRAKE FLUID LEVEL INSPECTION
CAUTION: Use only Mopar brake fluid or an equiv-
alent from a tightly sealed container. Brake fluid
must conform to DOT 3 specifications. Do not use
petroleum-based fluid because seal damage in the
brake system will result.
Fig. 15 Proportioning Valve
Fig. 16 Proportioning Valve Location In Vehicle
5 - 80 BRAKESPL
DIAGNOSIS AND TESTING (Continued)

For the specific procedure covering the inspection
of the brake fluid level and adding brake fluid to the
reservoir, refer to the Service Adjustments Section in
this group of the service manual.
BLEEDING TEVES MARK 20 HYDRAULIC SYSTEM
The hydraulic system for the base brakes must be
bled anytime air enters the hydraulic system. Air can
enter the hydraulic system for the base brakes due to
the disconnection of brake lines, hoses or any other
hydraulically operated component of the base brake
system. The ABS system, particularly the ICU,
should only be bled when the ICU is replaced or it is
removed from the vehicle. The ICU must also always
be bled if for any reason it is suspected that the ICU
has ingested air. Under most circumstances that
require the bleeding of the brakes hydraulic system,
only the base brake hydraulic system needs to be
bled.
It is important to note that excessive air in the
brake system will cause a soft or spongy feeling
brake pedal.
During the brake bleeding procedure, be sure the
brake fluid level remains close to the FULL level in
the master cylinder fluid reservoir. Check the fluid
level periodically during the bleeding procedure and
add DOT 3 brake fluid as required.
The ITT Teves Mark 20 ABS must be bled as two
independent braking systems. The non ABS portion
of the brake system is to be bled the same as any
non ABS system. Refer to the Service Adjustments
section in this manual for the proper bleeding proce-
dure to be used. This brake system can be either
pressure bled or manually bled.
The ABS portion of the brake system MUST be
bled separately. This bleeding procedure requires the
use of the DRB Diagnostic Tester and the bleeding
sequence procedure outlined below.
ABS BLEEDING PROCEDURE
When bleeding the ABS system, the following
bleeding sequenceMUSTbe followed to insure com-
plete and adequate bleeding. The ABS system can be
bled using a manual bleeding procedure or standard
pressure bleeding equipment.
If the brake system is to be bled using pressurized
bleeding equipment, refer to Bleeding Brake System
in the Service Adjustments section at the beginning
of this group for proper equipment usage and proce-
dures.
(1) Assemble and install all brake system compo-
nents on the vehicle making sure all hydraulic fluid
lines are installed and properly torqued.
(2) Connect the DRB Diagnostics Tester to the
diagnostics connector. The Teves Mark 20 ABS diag-
nostic connector is located under the instrument
panel to the left of the steering column cover.(3) Using the DRB, check to make sure the CAB
does not have any fault codes stored. If it does,
remove them using the DRB.
WARNING: WHEN BLEEDING THE BRAKE SYS-
TEM WEAR SAFETY GLASSES. A CLEAR BLEED
TUBE MUST BE ATTACHED TO THE BLEEDER
SCREWS AND SUBMERGED IN A CLEAR CON-
TAINER FILLED PART WAY WITH CLEAN BRAKE
FLUID. DIRECT THE FLOW OF BRAKE FLUID AWAY
FROM THE PAINTED SURFACES OF THE VEHICLE.
BRAKE FLUID AT HIGH PRESSURE MAY COME
OUT OF THE BLEEDER SCREWS WHEN OPENED.
(4) Bleed the base brake system using the stan-
dard pressure or manual bleeding procedure as out-
lined in the Service Adjustments section of this
service manual.
(5) Using the DRB, go to the9Bleed ABS9routine.
Apply the brake pedal firmly and initiate the9Bleed
ABS9cycle one time. Release the brake pedal.
(6) Bleed the base brake system again, as in step
Step 4 above.
(7) Repeat steps Step 5 and Step 6 above until
brake fluid flows clear and is free of any air bubbles.
Check brake fluid level in reservoir periodically to
prevent reservoir from running low on brake fluid.
(8) Test drive the vehicle to be sure brakes are
operating correctly and that the brake pedal does not
feel spongy.
REMOVAL AND INSTALLATION
ABS GENERAL SERVICE PRECAUTIONS
CAUTION: Review this entire section prior to per-
forming any mechanical work on a vehicle equipped
with the ITT Tevis Mark 20 ABS brake system. This
section contains information on precautions per-
taining to potential component damage, vehicle
damage and personal injury which could result
when servicing an ABS equipped vehicle.
CAUTION: Only the recommended jacking or hoist-
ing positions for this vehicle are to be used when-
ever it is necessary to lift a vehicle. Failure to raise
a vehicle from the recommended locations could
result in lifting a vehicle by the hydraulic control
unit mounting bracket. Lifting a vehicle by the
hydraulic control unit mounting bracket will result
in damage to the mounting bracket and the hydrau-
lic control unit.
PLBRAKES 5 - 81
SERVICE PROCEDURES (Continued)

CAUTION: Certain components of the ABS System
are not intended to be serviced individually.
Attempting to remove or disconnect certain system
components may result in improper system opera-
tion. Only those components with approved
removal and installation procedures in this manual
should be serviced.
CAUTION: Brake fluid will damage painted sur-
faces. If brake fluid is spilled on any painted sur-
faces, wash off with water immediately.
CAUTION: When performing any service procedure
on a vehicle equipped with ABS do not apply a 12
volt power source to the ground circuit of the pump
motor in the HCU. Doing this will damage the pump
motor and will require replacement of the entire
HCU.
The following are general cautions which should be
observed when servicing the ABS system and/or
other vehicle systems. Failure to observe these pre-
cautions may result in ABS System component dam-
age.
If welding work is to be performed on the vehicle,
using an electric arc welder, the CAB connector
should be disconnected during the welding operation.
The CAB 25 way connector connector should never
be connected or disconnected with the ignition switch
in the ON position.
Many components of the ABS System are not ser-
viceable and must be replaced as an assembly. Do not
disassemble any component which is not designed to
be serviced.
ABS HYDRAULIC CONTROL UNIT
REMOVE
(1) Disconnect negative (ground) cable from the
battery and isolate cable.
(2) Remove the power distribution center (PDC)
(Fig. 17) from the battery thermogaurd. PDC is
removed by unlatching the two retaining clips hold-
ing it to the thermogaurd and then pulling it straight
up off of the thermogaurd.
(3) Remove vacuum supply hose from speed control
servo (Fig. 18).
(4) Remove the 2 bolts (Fig. 18) mounting the
bracket for the speed control servo to the body.
(5) Remove the wiring harness connector (Fig. 19)
from the speed control servo. Then remove the rout-
ing clip for the speed control servo wiring harness
from the speed control servo mounting bracket.
(6) Lay the speed control servo, with the speed
control cable attached, on top of the engine.(7) Disconnect wiring harness connector from the
brake fluid level sensor on master cylinder reservoir.
Fig. 17 PDC Attachment To Thermogaurd
Fig. 18 Speed Control Servo Bracket Mounting
Fig. 19 Wiring Harness Connection To Speed
Control Servo
5 - 82 BRAKESPL
REMOVAL AND INSTALLATION (Continued)

CAUTION: When lubricating master cylinder push
rod, use only Mopar Silicone Dielectric Compound.
Using any other type of grease or lubricant on the
push rod, will not provide adequate long term lubri-
cation of the push rod.
(11) Lubricate master cylinder push rod as indi-
cated in (Fig. 28) only usingMopar Dielectric
GreaseÐAnd No Substitutes.Refer to the Mopar
Chemicals Catalog to obtain the required lubricant.
(12) Install vacuum seal on master cylinder push
rod as shown in (Fig. 29) with notches on vacuum
seal pointing toward master cylinder housing. Then
slide vacuum seal onto master push rod until seal is
seated against master cylinder housing (Fig. 30)
before installing master cylinder on power brake vac-
uum booster.
CAUTION: Be sure old vacuum seal is removed
from power brake vacuum booster before attempt-
ing to install master cylinder and NEW vacuumseal. If vacuum seal is not removed, refer to Master
Cylinder Removal in this section of the service
manual for required vacuum seal removal proce-
dure.
(13) Position master cylinder on studs of vacuum
booster aligning push rod on vacuum booster with
master cylinder push rod.
(14) Install the 2 master cylinder to power brake
unit mounting nuts (Fig. 21). Tighten the mounting
nuts to a torque of 28 N´m (250 in. lbs.) torque.
(15) Connect brake tubes to master cylinder pri-
mary and secondary ports (Fig. 20). Torque all tube
nuts to 17 N´m (145 in. lbs.) torque.
(16) Using a crow foot (Fig. 31) tighten the brake
tube nuts at the master cylinder to a torque of 17
N´m (145 in. lbs.).
(17) Install the wiring harness connector on the
master cylinder reservoir fluid level switch.
Fig. 27 Removing Vacuum Seal From Vacuum
Booster
Fig. 28 Lubricating Master Cylinder Push Rod
Fig. 29 Installing Vacuum Seal On Master Cylinder
Push Rod
Fig. 30 Vacuum Seal Positioned For Installing
Master Cylinder
PLBRAKES 5 - 85
REMOVAL AND INSTALLATION (Continued)

DESCRIPTION AND OPERATION
HYDRAULIC CLUTCH SYSTEM Ð RIGHT HAND
DRIVE (RHD)
The hydraulic clutch linkage consists of a clutch
master cylinder, remote hydraulic fluid reservoir,
lower clutch slave cylinder, damper, and hydraulic
lines. The clutch master cylinder is connected to the
clutch pedal. The slave cylinder push rod is con-
nected to the clutch release fork. The clutch master
cylinder is mounted on the driver's side of the dash
panel adjacent to the brake master cylinder and
booster assembly.
NOTE: The clutch hydraulic system is serviced as
two separate systems (master cylinder assembly
w/lines and lower slave cylinder assembly w/lines. If
a malfunction occurs within a system, replacement
of that system is required. It is not recommended or
necessary to bleed the clutch hydraulic system. The
service parts are prefilled.
CLUTCH PEDAL POSITION SWITCH Ð RIGHT
HAND DRIVE (RHD)
For description, operation, and diagnosis of the
clutch pedal position switch refer to the Left Hand
Drive (LHD) information for the clutch pedal position
switch.
DIAGNOSIS AND TESTING
CLUTCH DIAGNOSIS Ð RIGHT HAND DRIVE
(RHD)
Problem diagnosis will generally require a road
test to determine the type of fault. Component
inspection will then determine the problem after road
testing.
Drive the vehicle at normal speeds during road
test. Shift the transaxle through all gear ranges and
observe clutch action. If chatter, grab, slip, or
improper release is experienced, remove and inspect
the clutch components. If the problem is noise or
hard shifting, further diagnosis may be needed. The
transaxle or other driveline components may actually
be at fault.
Fig. 2 Clutch Pedal Position Switch and
Components Ð Right Hand Drive (RHD)
6 - 2 CLUTCHPL

LOOSE STEERING
VEHICLE LEADS TO THE SIDE
CONDITION POSSIBLE CAUSES CORRECTION
EXCESSIVE STEERING WHEEL
KICKBACK OR TO MUCH
STEERING WHEEL FREE PLAY.1. Air in the fluid of the power
steering system.1. Fill power steering fluid reservoir
to the specified level. Perform
procedure to bleed the air out of the
power steering system. Perform
leakage diagnosis.
2. Steering gear loose on front
suspension crossmember.2. Check steering rear to front
suspension crossmember mounting
bolts. Tighten to specified torque if
found to be loose.
3. Worn, broken or loose steering
column to steering gear coupler.3. Check for worn universal joint,
broken isolator or loose fasteners.
4. Free play in steering column.
4.Check components of the steering
system and repair or replace as required.
5. Loose front suspension control
arm ball joints.5. Check and or replace the ball joint
or control arm as required.
6. Loose steering knuckle to ball
joint stud pinch bolt.6. Check pinch bolts and tighten if
required to specified torque.
7. Front wheel bearings loose or
worn.7. Tighten hub nut to specified
torque or replace with new parts as
necessary.
8. Loose outer tie rod ends. 8. Check free play of outer tie rod
ends and replace if required.
9. Loose inner tie rod ends. 9. Replace steering gear assembly.
10 Defective steering gear rotary
valve.10. Replace steering gear assembly.
CONDITION POSSIBLE CAUSES CORRECTION
STEERING WHEEL DOES NOT
WANT RETURN TO CENTER
POSITION.1. Radial tire lead. 1.Rotate tires as recommended in
the Tire And Wheel Group of this
service manual.
2. Front suspension misaligned. 2. Align the front suspension as
required. Refer to the Wheel
Alignment Procedure in the
Suspension Group of this service
manual for the required wheel
alignment procedure.
3. Wheel braking. 3. Check for dragging brakes. Refer
to the procedures in the Brake
Group of this service manual.
4. Unbalanced steering gear valve. (If
this is the cause, the steering efforts will
be very light in direction of lead and
heavier in the opposite direction.4. Replace steering gear.
STEERING WHEEL HAS FORE
AND AFT LOOSENESS.1. Steering wheel to steering column
shaft retaining nut not properly
tightened and torqued.1. Tighten the retaining nut to its
specified torque specification.
2. Steering column lower bearing
spring retainer slipped on steering
column shaft.2. Replace steering column.
PLSTEERING 19 - 7
DIAGNOSIS AND TESTING (Continued)

TRANSAXLE
CONTENTS
page page
31TH AUTOMATIC TRANSAXLE............. 40 NVT350 (A-578) MANUAL TRANSAXLE....... 1
NV T350 (A-578) MANUAL TRANSAXLE
INDEX
page page
GENERAL INFORMATION
GEAR RATIOS........................... 2
GEARSHIFT PATTERN..................... 2
NV T350 MANUAL TRANSAXLE.............. 1
SEALANTS.............................. 2
SELECTION OF LUBRICANT................ 2
SPECIAL ADDITIVES...................... 2
TRANSAXLE IDENTIFICATION INFORMATION . . . 2
DESCRIPTION AND OPERATION
AXLE SEALS............................ 3
SHIFT LEVERS.......................... 3
DIAGNOSIS AND TESTING
CLUTCH PROBLEMS...................... 3
COMMON PROBLEM CAUSES.............. 3
HARD SHIFTING......................... 3
LOW LUBRICANT LEVEL................... 3
NOISY OPERATION....................... 3
SLIPS OUT OF GEAR..................... 3
SERVICE PROCEDURES
FLUID DRAIN AND FILL.................... 3
REMOVAL AND INSTALLATION
AXLE SEALS............................ 8
BACK-UP LAMP SWITCH................... 7
CROSSOVER LEVER...................... 7
GEARSHIFT BOOT....................... 4
GEARSHIFT CABLES...................... 4GEARSHIFT KNOB....................... 4
GEARSHIFT MECHANISM REPLACEMENT..... 6
SELECTOR LEVER....................... 8
SHIFT SHAFT SEALS...................... 8
TRANSAXLE............................ 8
VEHICLE SPEED SENSOR DRIVE GEAR...... 7
DISASSEMBLY AND ASSEMBLY
DIFFERENTIAL......................... 24
INPUT SHAFT.......................... 20
OUTPUT SHAFT........................ 24
SHIFT RAILS OVERHAUL................. 29
SYNCHRONIZER........................ 29
TRANSAXLE CASE OVERHAUL............. 30
TRANSAXLE........................... 10
CLEANING AND INSPECTION
SYNCHRONIZER........................ 35
TRANSAXLE........................... 35
ADJUSTMENTS
BEARING ADJUSTMENT PROCEDURE....... 35
DIFFERENTIAL BEARING PRELOAD
ADJUSTMENT......................... 36
GEARSHIFT CROSSOVER CABLE........... 35
SPECIFICATIONS
NV T350 (A-578) SPECIFICATIONS.......... 37
SPECIAL TOOLS
NV T350 (A-578) MANUAL TRANSAXLE....... 37
GENERAL INFORMATION
NV T350 MANUAL TRANSAXLE
NOTE: Safety goggles should be worn at all times
when working on these transaxles.
This five speed is a constant-mesh manual tran-
saxle. All gear ranges, except reverse, are synchro-
nized. The reverse gear utilizes a brake and blockingring for shifting ease. The reverse idler gear is sup-
ported on a sliding spindle idler shaft. The transaxle
case is aluminum with a steel end±plate bearing
cover. It is housed in a die-cast aluminum case fea-
turing a two±piece, middle split design.
The NV T350 (A-578) transaxle internal compo-
nents can be serviced only by separating the gear
case from the bellhousing case.
PLTRANSAXLE 21 - 1

CAUTION: The transaxle output shaft is serviced as
a unit. No disassembly and reassembly is possible.
Damage to the transaxle may result.
TRANSAXLE IDENTIFICATION INFORMATION
The transaxle model, assembly number, and build
date are on a metal I.D. tag that is attached to the
end cover of the transaxle (Fig. 1). This information
is also shown on a bar code label that is attached to
the front of the transaxle.
NOTE: Transaxles use various final drive gear
ratios in different vehicle applications. Therefore, it
is necessary that the correct transaxle assembly
number is used when ordering service parts.
The last eight digits of the Vehicle Identification
Number (V.I.N.) are stamped on the case, below the
back±up lamp switch.
NOTE: There are four different versions of this
transaxle. There are no external differences
between the models. Refer to the identification tag
on the transaxle to determine which transaxle the
vehicle is equipped with.
SELECTION OF LUBRICANT
NV T350 (A-578) transaxles use MopartType M.S.
9417 Manual Transaxle Fluid.Hypoid gear lube,
engine oil, and/or automatic transmission fluid
should not be used in this transaxle.Hard shift-
ing effort, bearing, gear, and/or synchronizer failure
may occur if incorrect fluid is used.
SPECIAL ADDITIVES
The addition of any fluids to the transaxle, other
than the fluid listed above, is not recommended. An
exception to this policy is the use of special dyes toaid in detecting fluid leaks. The use of transmission
sealers should be avoided, since they may adversely
affect seals.
SEALANTS
The sealant used to seal the transaxle case halves
and input bearing is MopartGasket Maker, Loctitet
518, or equivalent. The sealant used for the bearing
end plate cover is MopartRTV.
GEAR RATIOS
CAUTION: All gears and shafts must not be inter-
changed with other transaxles; they will not func-
tion correctly.
The differential is a conventional arrangement of
gears that is supported by tapered roller bearings.
The final output gear turns the ring gear and differ-
ential assembly, thereby turning the drive axle
shafts.
All transaxles have a torque capacity of 136 lb. ft.
The gear ratios of each transaxle are shown in the
following chart. The chart also shows which transax-
les are available with the reverse±input shaft brake.
This brake allows easier shifting into reverse and
helps eliminate reverse gear clash.
ENGINE 2.0 SOHC
EUROPE
AND U.S.1.8 BUX or
2.0L
SALES
CODE
ACR1.8 RIGHT
HAND
DRIVE
ONLY
GEAR
1st 3.54 3.54 3.54
2nd 2.13 2.13 2.13
3rd 1.36 1.36 1.36
4th 1.03 1.03 1.03
5th 0.72 0.81 0.81
FINAL
DRIVE3.55 3.94 3.94
REVERSE
BRAKENO YES YES
CLUTCH
RELEASE
SYSTEMCABLE CABLE HYDRAULIC
GEARSHIFT PATTERN
The NV T350 (A-578) transaxle shift pattern is a
modified H±pattern (Fig. 2). Overdrive fifth and
reverse gears are in±line and outboard of the first
through fourth gear positions.
Fig. 1 Metal I.D. Tag
21 - 2 TRANSAXLEPL
GENERAL INFORMATION (Continued)