tire type CHRYSLER VOYAGER 1996 User Guide

(3) Remove the rear wheel cylinder attaching bolts
(Fig. 81). Then pull wheel cylinder assembly off the
brake support plate.
INSTALL
(1) Apply MopartGasket In-A-Tube or equivalent
sealant around wheel cylinder mounting surface in
brake support plate.
(2) Install wheel cylinder onto brake support, and
tighten the wheel cylinder to brake support plate
attaching bolts (Fig. 81) to 8 N´m (75 in. lbs.).
(3) Attach hydraulic brake tube to wheel cylinder,
(Fig. 81) and tighten tube to wheel cylinder fitting to
16 N´m (142 in. lbs.).
(4) Install brake shoes on support plate.
(5) Install rear brake drum onto rear hub. Install
rear wheel and tire assembly, tighten wheel stud
nuts to 129 N´m (95 ft. lbs.).
(6) Adjust the rear brakes, (See Adjusting Service
Brakes) in Service Adjustments section in this group
of the service manual.
(7) Bleed the entire brake system. See (Bleeding
Brake System) in Service Adjustments section in this
group of the service manual.
HUB/BEARING
FRONT WHEEL DRIVE
REMOVE
(1) Raise vehicle on jackstands or centered on a
frame contact type hoist. See Hoisting in the Lubri-
cation and Maintenance section of this service man-
ual for required lifting procedure.
(2) Remove wheel and tire.
(3) Remove brake drum from hub/bearing.
(4) Remove rear wheel speed sensor from rear hub/
bearing (Fig. 82). This will prevent damage to the
speed sensor during removal and installation of the
hub/bearing.The rear wheel speed sensor bolts
to the hub/bearing. It can not be removed
unless the speed sensor is removed first.
CAUTION: When working in the area of the rear
hub/bearing and when removing it from the rear
axle, care must be used so the teeth on the tone
wheel are not damaged. Damage to the teeth on the
tone wheel will result in false ABS cycling and cor-
rosion of the tone wheel.
(5) Remove the 4 bolts (Fig. 83) attaching the hub/
bearing to the rear axle.
CAUTION: Corrosion may occur between the hub/
bearing and the axle. If this occurs the hub/bearing
will be difficult to remove from the axle. If the hub/
bearing will not come out of the axle by pulling onit by hand, do not pound on the hub/bearing to
remove it from the axle. Pounding on the hub/bear-
ing to remove it from the axle will damage the hub/
bearing. This damage will result in noise or failure
of the bearing.
(6) If hub/bearing cannot be removed from the axle
by hand, use Remover Special Tool 8214 (Fig. 84) and
following procedure to press the hub/bearing out of
the axle.
(a) Place Special Tool 8214-1 over tone wheel
and against cast flange of hub/bearing (Fig. 84)
(b) Put a dab of grease in the bolt pilot hole on
the back of Special Tool 8214-1.
(c) Insert Special Tool 8214-2 into the hole in the
bottom of the end casting on the axle (Fig. 84).
Special Tool 8214-2 should be against and sup-
ported by the axle plate (Fig. 84) when pressing
the wheel bearing out of the axle.If Special Tool
8214-2 will not fit into the hole in the end
casting, file or grind the flashing from the
hole until tool fits properly.
Fig. 82 Rear Wheel Speed Sensor
Fig. 83 Rear Hub/Bearing Mounting Bolts
5 - 40 BRAKESNS
REMOVAL AND INSTALLATION (Continued)

(d) Align bolt in Special Tool 8214-2 with pilot
hole in Special Tool 8214-1. Tighten bolt against
Special Tool 8214-1.
(e) Press hub/bearing out of axle by continuing
to tighten bolt in Special Tool 8214-2 against Spe-
cial Tool 8214-1.
(7) Remove the hub/bearing from the rear axle and
brake support plate (Fig. 85).
INSTALL
(1) Install the 4 hub/bearing to axle mounting
bolts into the holes in the flange of the rear axle.
(2) Install the rear brake support plate on the 4
mounting bolts installed in the flange of the rear
axle.
(3) Align the rear hub/bearing with the 4 mount-
ing bolts and start mounting bolts into hub/bearing.
Tighten the 4 bolts in a criss-cross pattern until the
hub/bearing and brake support plate is fully and
squarely seated onto flange of rear axle.
(4) Tighten the 4 hub/bearing mounting bolts (Fig.
83) to a torque of 129 N´m (95 ft. lbs.)(5) Install the rear wheel speed sensor on the rear
hub/bearing flange (Fig. 82). Install the speed sensor
attaching bolt and tighten to a torque of 12 N´m (105
in. lbs.).
(6) Install brake drum on hub/bearing.
(7) Install wheel and tire.
(8) Tighten the wheel stud nuts in the proper
sequence to a torque of 129 N´m (95 ft. lbs.).
(9) Adjust the rear brakes, (See Adjusting Service
Brakes) in Service Adjustments section in this group
of the service manual.
ALL WHEEL DRIVE
REMOVE
(1) Set the parking brake.The parking brake is
set to keep the hub/bearing and axle shaft from
rotating when loosening the hub nut.
(2) Raise vehicle. Vehicle is to be raised and sup-
ported on jackstands or on a frame contact type
hoist. See Hoisting in the Lubrication And Mainte-
nance section of this service manual.
(3) Remove the wheel/tire.
(4) Remove the cotter pin and nut retainer (Fig.
86) from the stub shaft of the outer C/V joint.
(5) Remove the spring washer (Fig. 87) from the
stub shaft of the outer C/V joint.
(6) Remove the hub nut and washer (Fig. 88) from
the stub shaft of the outer C/V joint.
(7) Remove the 6 bolts (Fig. 89) mounting the
driveshaft inner joint to the output shaft of the rear
drive line module.
(8) Remove the rear wheel speed sensor (Fig. 90)
from the rear hub/bearing.
(9) Release the parking brake.
(10) Remove the disc brake caliper to adapter
guide pin bolts (Fig. 91).
(11) Remove rear caliper from adapter using the
following procedure. First rotate rear of caliper up
Fig. 84 Special Tool 8214 Installed
Fig. 85 Removing Rear Hub/Bearing From Axle
Fig. 86 Cotter Pin And Nut Retainer
NSBRAKES 5 - 41
REMOVAL AND INSTALLATION (Continued)

caliper adapter and hub/bearing are squarely seated
against the axle. Then tighten the hub/bearing
mounting bolts to a torque of 129 N´m (95 ft. lbs.).
(3) Install driveshaft in hub/bearing and on output
shaft of rear drive line module. Driveshaft is
installed by first sliding the outer joint of the drive-
shaft into the hub/bearing and then compressing the
inner joint on the driveshaft and installing it on the
output shaft the drive line module.
(4) Install rotor on hub/bearing.
(5) Carefully lower disc brake caliper and brake
shoes over rotor and onto caliper adapter by revers-
ing the removal procedure (Fig. 92).
CAUTION: When installing guide pin bolts extreme
caution should be taken not to crossthread the cal-
iper guide pin bolts.
(6) Install the disc brake caliper guide pin bolts
(Fig. 91). Tighten the guide pin bolts to a torque of
22 N´m (192 in. lbs.).
(7) Clean all foreign material off the threads of the
outer C/V joint stub shaft. Install the washer and
hub nut (Fig. 88) on the stub shaft of the outer C/V
joint.
(8) Lower vehicle.
(9) Set the park brake.This is required to keep
the driveshaft from rotating when tightening
and torquing the hub nut and driveshaft inner
joint to driveline module mounting nuts.
(10) Raise vehicle.
(11) Tighten the driveshaft inner joint to drive line
module output shaft mounting bolts (Fig. 89) to a
torque of 61 N´m (45 ft. lbs.).
(12) Tighten the outer C/V joint hub nut (Fig. 88)
to a torque of 244 N´m (180 ft. lbs.).
(13) Install the spring washer (Fig. 87) on the stub
shaft of the outer C/V joint.
(14) Install the nut retainer and cotter pin (Fig.
86) on the stub shaft of the outer C/V joint.
(15) Install the wheel speed sensor on the hub/
bearing and adapter. Install the wheel speed sensor
attaching bolt (Fig. 90). Tighten the wheel speed sen-
sor attaching bolt to a torque of 12 N´m (105 in. lbs).
(16) Install wheel and tire.
(17) Tighten the wheel mounting stud nuts in
proper sequence until all nuts are torqued to half
specification. Then repeat the tightening sequence to
the full specified torque of 129 N´m (95 ft. lbs.).
(18) Remove jackstands or lower hoist.
CAUTION: Before moving vehicle, pump the brake
pedal several times to insure the vehicle has a firm
brake pedal to adequately stop vehicle.
(19) Road test vehicle to ensure proper operation
of the brake system.MASTER CYLINDER
CAUTION: Different types of master cylinders are
used on this vehicle. Vehicles equipped with trac-
tion control use a center port master cylinder. Vehi-
cles not equipped with traction control use a
compensating port master cylinder. Be sure to ver-
ify if the vehicle is equipped with traction control
and that the correct replacement master cylinder is
used. Also, vehicles that are equipped with four
wheel disc brakes have a master with a different
size piston bore than the other master cylinders. If
a new master cylinder is being installed, be sure
the correct master cylinder is used for the type of
brake system the vehicle is equipped with.
REMOVE
CAUTION: Vacuum in the power brake booster
must be pumped down (removed) before removing
master cylinder from power brake booster. This is
necessary to prevent the power brake booster from
sucking in any contamination as the master cylin-
der is removed. This can be done simply by pump-
ing the brake pedal, with the vehicle's engine not
running, until a firm feeling brake pedal is achieved.
(1) With engine not running, pump the brake
pedal until a firm pedal is achieved (4-5 strokes).
CAUTION: Before removing the master cylinder
filler tube from the brake fluid reservoir, the filler
tube, brake fluid reservoir and master cylinder must
be thoroughly cleaned. This must be done to pre-
vent dirt particles from falling into the brake fluid
reservoir and entering the brakes hydraulic system.
(2) Thoroughly clean all surfaces of the filler neck,
brake fluid reservoir, and master cylinder. Use only a
solvent such as Mopar Brake Parts Cleaner or an
equivalent.
(3) Remove master cylinder filler tube from brake
fluid reservoir by pushing down and rotating (Fig.
97). Then remove the cap from the removed filler
tube and install it on the master cylinder reservoir.
(4) Remove vehicle wiring harness connector, from
the brake fluid level sensor, in master cylinder brake
fluid reservoir (Fig. 98).
(5) Disconnect the primary and secondary brake
tubes from the master cylinder housing (Fig. 99).
Install sealing plugs in the open brake tube outlets
on master cylinder assembly.
5 - 44 BRAKESNS
REMOVAL AND INSTALLATION (Continued)

(23) Install the negative (ground) cable on the bat-
tery.
(24) Cycle the park brake pedal one time. This will
seat the park brake cables and will allow the auto-
matic self adjuster to properly tension the park brake
cables.
PARK BRAKE SHOES (WITH REAR DISC BRAKES)
On this vehicle, the park brake shoes are removed
from the disc brake adapter with the disc brake
adapter removed from the vehicle.
REMOVE
(1) Set the parking brake.The parking brake is
set to keep the hub/bearing and axle shaft from
rotating when loosening the hub nut.
(2) Raise vehicle. Vehicle is to be raised and sup-
ported on jackstands or on a frame contact type
hoist. See Hoisting in the Lubrication And Mainte-
nance section of this service manual.
(3) Remove the wheel/tire.
(4) Remove the cotter pin and nut retainer (Fig.
139) from the stub shaft of the outer C/V joint.
(5) Remove the spring washer (Fig. 140) from the
stub shaft of the outer C/V joint.
(6) Remove the hub nut and washer (Fig. 141)
from the stub shaft of the outer C/V joint.
(7) Release the parking brake.
(8) Create slack in the rear park brake cables by
locking the out the automatic adjuster as described.
Grasp the exposed section of front park brake cable
and pull downward on it. Then install a pair of lock-
ing pliers on the front park brake cable just rearward
of the second body outrigger bracket (Fig. 142).
(9) Remove the disc brake caliper to adapter guide
pin bolts (Fig. 143).
(10) Remove rear caliper from adapter using the
following procedure. First rotate rear of caliper up
from the adapter. Then pull the front of the caliperand the outboard brake shoe anti-rattle clip out from
under the front abutment on the adapter (Fig. 144).
(11) Support caliper to prevent the weight of the
caliper from damaging the flexible brake hose (Fig.
Fig. 139 Cotter Pin And Nut Retainer
Fig. 140 Spring Washer
Fig. 141 Hub Nut And Washer
Fig. 142 Locking Out Automatic Adjuster
5 - 60 BRAKESNS
REMOVAL AND INSTALLATION (Continued)

(9) Assemble the park brake cables onto the park
brake cable equalizer (Fig. 159).
(10) Release the automatic adjuster mechanism on
the park brake pedal assembly. Refer to Parking
Brake Automatic Adjuster in the Service Procedures
Section in this group of the service manual for the
required procedure.
(11) Lower vehicle and apply the park brake pedal
1 time, this will seat the park brake cables.
INTERMEDIATE PARK BRAKE CABLE
REMOVE
(1) Raise vehicle on jackstands or centered on a
hoist. See Hoisting in the Lubrication and Mainte-
nance group of this service manual.
(2) Manually lockout the automatic self adjusting
mechanism of the park brake pedal assembly. Refer
to Manual Lockout Of Auto Adjuster Mechanism in
this section of the service manual for the required
procedure.
(3) Remove the intermediate park brake cable
from the park brake cable equalizer (Fig. 162).
(4) Remove the intermediate park brake cable
from the cable connector attaching it to the right
rear park brake cable (Fig. 163)
(5) Remove the intermediate park brake cable
from the cable guides on the frame rails (Fig. 163).
INSTALL
(1) Install the ends of the park brake cables
through the cable guides.
(2) Install the intermediate park brake cable on
the cable connector at the right rear park brake cable
(Fig. 163).
(3) Install the intermediate park brake cable on
the cable equalizer (Fig. 162).(4) Remove the locking pliers from the front park
brake cable. This will activate the automatic adjuster
and correctly adjust the park brake cables.
(5) Install and position the foam collar on the park
brake cable to prevent it from rattling against floor.
(6) Lower vehicle and apply the park brake pedal
1 time, this will seat the park brake cables.
RIGHT REAR PARK BRAKE CABLE
REMOVE
(1) Raise vehicle on jackstands or centered on a
hoist. See Hoisting in the Lubrication and Mainte-
nance group of this service manual.
(2) Remove rear tire and wheel assembly.
(3) Remove rear brake drum from the rear wheel
of the vehicle requiring service to the rear park
brake cable.
(4) Create slack in the rear park brake cables by
locking out the automatic adjuster as described.
Grasp exposed section of front park brake cable and
pull down on it. Then install a pair of locking pliers
on the cable just rearward of the second body outrig-
ger bracket (Fig. 164).
(5) Disconnect the right rear park brake cable
from the connector on the intermediate cable (Fig.
165).
(6) To remove the right park brake cable housing
from the body bracket, slide a 14 mm box end wrench
over the end of cable retainer to compress the retain-
ing fingers (Fig. 166). The alternate method using an
aircraft type hose clamp will not work on the right
side of the vehicle.
(7) Remove the brake shoes from the brake sup-
port plate. Refer to Rear Brake Shoes in the Removal
And Installation Section of this service manual for
the required procedure.
Fig. 162 Park Brake Cable Attachment To Equalizer
Fig. 163 Intermediate Cable Attachment To Right
Rear Cable
5 - 66 BRAKESNS
REMOVAL AND INSTALLATION (Continued)

group of the service manual for the installation pro-
cedure.
(13) Install wheel and tire.
(14) Tighten the wheel mounting nuts in the
proper sequence until all nuts are torqued to half the
specified torque. Then repeat the tightening sequence
to the full specified torque of 129 N´m (95 ft. lbs.).
(15) Lower vehicle.
(16) Apply and release the park brake pedal one
time. This will seat and correctly adjust the park
brake cables.
CAUTION: Before moving vehicle, pump brake
pedal several times to ensure the vehicle has a firm
enough pedal to stop the vehicle.
(17) Road test the vehicle to ensure proper func-
tion of the vehicle's brake system.
PARK BRAKE CABLE ADJUSTMENT
The park brake cables on this vehicle have an
automatic self adjuster built into the park brake
pedal mechanism. When the foot operated park brake
pedal is in its released (upward most) position, a
clock spring automatically adjusts the park brake
cables. The park brake cables are adjusted (ten-
sioned) just enough to remove all the slack from the
cables. The automatic adjuster system will not over
adjust the cables causing rear brake drag.
Due to the automatic adjust feature of the park
brake pedal, adjustment of the parking brake cables
on these vehicles relies on proper drum brake and
park brake shoe adjustment. See Rear Brake Adjust-
ment and Park Brake Shoe Adjustment in the Ser-
vice Adjustments Section in this group of the service
manual.
When the park brake pedal is applied the self
adjuster is by-passed and the pedal operates nor-
mally to engage the park brakes.
When a service procedure needs to be performed on
the park brake pedal or the park brake cables, the
automatic self adjuster can be manually locked out
by the service technician.
PROPORTIONING VALVE (HEIGHT SENSING)
Proportioning valve actuator adjustment will be
required if there is a complaint of premature rear
wheel lockup and the front and rear brake shoe lin-
ings checked OK during inspection, the height sens-
ing proportioning valve required replacement, or
there is a complaint of excessive pedal effort and the
vacuum booster and brake pedal checked OK. Make
sure the proportioning valve and the mounting
bracket are firmly attached to the vehicle. Then, pro-
ceed with the following procedure to perform the
adjustment of the actuator.(1) Raise vehicle. Vehicle is to be raised and sup-
ported on jackstands or with a frame contact type
hoist so the rear suspension of the vehicle is hanging
free. See hoisting in the Lubrication And Mainte-
nance section of this service manual.
(2) Remove rear wheels/tires.
(3) Using an appropriate jack, support the rear
axle prior to the removal of the track bar and shock
absorber bolts from the rear axle.
(4) Unbolt the track bar from the rear axle.
(5) Unbolt both shock absorbers from the rear
axle.
(6) Loosen (do not remove) both of the leaf spring
to front spring hanger pivot bolts.
NOTE: When lowering the rear axle be sure that the
leaf springs do not come in contact with the hoist
limiting the downward movement of the axle. If this
occurs an improper adjustment of the actuator may
result.
(7) Lower the rear axle so it is at its farthest point
of downward movement.
(8) Loosen the adjustment nut (Fig. 203) on the
actuator.
(9) Be sure the hooked end of the actuator is cor-
rectly (fully) seated in the clip on the proportioning
valve lever and that the clip is correctly positioned
on the lever of the proportioning valve.
(10) Pull the housing of the proportioning valve
actuator toward the spring hanger (Fig. 203) until
the lever on the proportioning valve bottoms on the
body of the proportioning valve.Hold the propor-
tioning valve actuator in this position while
tightening the adjustment nut (Fig. 203) to a
torque of 5 N´m (45 in. lbs.). Proportioning
valve adjustment is now complete.
(11) Install shock absorbers and track bar on rear
axle.Do not tighten the mounting bolts for any
of the loosened suspension components at this
time.
(12) Install the wheel/tires.
Fig. 203 Proportioning Valve Actuator Adjustment
NSBRAKES 5 - 81
ADJUSTMENTS (Continued)

The front wheel speed sensor is attached to a boss
in the steering knuckle (Fig. 7). The front tone wheel
(Fig. 7) is part of the driveshafts outboard constant
velocity joint. The rear wheel speed sensor ismounted through the rear axle, rear brake support
plate and directly to the rear bearing (Fig. 8) (Fig. 9).
The rear tone wheel on a front wheel drive vehicle is
an integral part of the rear wheel hub/bearing
assembly. If damaged though, the rear tone wheel on
a front wheel drive vehicle can be replaced as a indi-
vidual component of the rear hub/bearing assembly.
Refer to Rear Tone Wheel in the Remove And Install
Section in this group of the service manual for the
required procedure. The wheel speed sensor air gap
is NOT adjustable.
The rear tone wheel on a all wheel drive vehicle, is
part of the outboard constant velocity joint on the
rear driveshaft (Fig. 9).
The four wheel speed sensors are all serviced indi-
vidually, but the front tone wheel on all vehicles and
the rear tone wheel on all wheel drive vehicles are
serviced as part of the front or rear driveshaft out-
board constant velocity joint (Fig. 7) and (Fig. 9).
Correct ABS system operation is dependent on
accurate wheel speed signals. The vehicle's wheels
and tires must all be the same size and type to gen-
erate accurate signals. Variations in wheel and tire
size can produce inaccurate wheel speed signals,
which can cause false ABS cycles to occur.
CONTROLLER ANTILOCK BRAKES (CAB)
The Controller Antilock Brakes (CAB) is a micro-
processor based device which monitors the ABS sys-
tem during normal braking and controls it when the
vehicle is in an ABS stop. The CAB is mounted to the
bottom of the HCU (Fig. 10). The CAB uses a 25 way
electrical connector on the vehicle wiring harness.
The power source for the CAB is through the ignition
switch in the Run or On position.THE (CAB) IS ON
THE CCD BUS
Fig. 6 Proportioning Valve Mounting Location
Fig. 7 Front Wheel Speed Sensor
Fig. 8 Rear Wheel Speed Sensor (FWD)
Fig. 9 Rear Wheel Speed Sensor (AWD)
5 - 90 BRAKESNS
DESCRIPTION AND OPERATION (Continued)

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 brake pedal is solid.
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.
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 CAB. Doing this will damage the pump
motor and will require replacement of the 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.
HYDRAULIC CONTROL UNIT
REMOVE
(1) Disconnect the negative (ground) cable from
the battery and isolate cable.
(2) Using a brake pedal depressor, move and lock
the brake pedal to a position past the first inch of
pedal travel.This will prevent brake fluid from
draining out of the master cylinder when the
brake tubes are removed from the HCU.
(3) Raise vehicle. Vehicle is to be raised and sup-
ported on jackstands or on a frame contact type
5 - 100 BRAKESNS
SERVICE PROCEDURES (Continued)

CAUTION: Because of the flexible section in the
primary and secondary brake tubes, and the brake
tubes between the HCU and the proportioning
valve, the brake tubes must be held in proper ori-
entation when tightened and torqued. These tubes
must not contact each other or other vehicle com-
ponents when installed.
CAUTION: When installing the chassis brake tubes
on the HCU valve block, they must be located cor-
rectly in the valve block to ensure proper ABS oper-
ation. Refer to (Fig. 27) for the correct chassis
brake tube locations.
NOTE: The chassis brake tube attachment loca-
tions to the HCU, are marked on the bottom of the
HCU mounting bracket.
(6) Install the 6 chassis brake tubes into their cor-
rect port locations on the HCU valve block as shown
in (Fig. 27). Tighten the tube nuts to a torque of 17
N´m (145 in. lbs.).
NOTE: Before installing the 25 way connector in
the CAB be sure the seal is properly installed in the
connector.
(7) Install the 25 way connector on the CAB using
the following procedure. Position the 25 way connec-
tor in the socket of the CAB and carefully push it
down as far as possible. When connector is fully
seated by hand into the CAB socket, push in the con-
nector lock (Fig. 26). This will pull the connector into
the socket of the CAB and lock it in the installed
position.
(8) Install the routing clips (Fig. 33) on the brake
tubes.(9) Lower vehicle.
(10) Connect negative cable back on negative post
of the battery.
(11) Bleed the base brakes and the ABS brakes
hydraulic system. Refer to the Bleeding ABS System
in this section of the manual for the proper bleeding
procedure.
(12) Road test vehicle to ensure proper operation
of the base and ABS brake systems.
WHEEL SPEED SENSOR (FRONT)
REMOVE
(1) Raise vehicle on jack stands or centered on a
frame contact type hoist. See Hoisting in the Lubri-
cation and Maintenance section of this service man-
ual, for the required lifting procedure to be used for
this vehicle.
(2) Remove the tire and wheel assembly from the
vehicle.
(3) Remove the 2 screws (Fig. 34) attaching front
channel bracket and grommet retainer to the outer
frame rail.
CAUTION: When disconnecting the wheel speed
sensor from vehicle wiring harness, be careful not
to damage pins on connector
(4) Pull speed sensor cable grommet and connector
through the hole in the strut tower (Fig. 35). Discon-
nect speed sensor cable from vehicle wiring harness
(Fig. 35).
(5) Remove the wheel speed sensor head to steer-
ing knuckle attaching bolt (Fig. 36).
(6) Remove sensor head from steering knuckle. If
the sensor has seized, due to corrosion,DO NOT
USE PLIERS ON SENSOR HEAD.Use a hammer
and a punch and tap edge of sensor ear, rocking the
sensor side to side until free.
Fig. 33 Brake Tube Routing Clips
Fig. 34 Front Speed Sensor Cable Channel Bracket
NSBRAKES 5 - 105
REMOVAL AND INSTALLATION (Continued)

(7) Remove the wheel speed sensor cable grommets
from the retaining bracket (Fig. 37).(8) Remove front wheel speed sensor assembly
from the vehicle.
INSTALL
CAUTION: Proper installation of wheel speed sen-
sor cables is critical to continued system operation.
Be sure that cables are installed in retainers. Fail-
ure to install cables in retainers as shown in this
section may result in contact with moving parts
and/or over extension of cables, resulting in an
open circuit.
(1) Connect the front wheel speed sensor cable to
the vehicle wiring harness connector (Fig. 35). Be
sure speed sensor cable connector is fully seated and
locked into vehicle wiring harness connector, then
insert cable and grommet into hole in strut tower
(Fig. 35).
CAUTION: When installing channel bracket, do not
pinch the speed sensor cable under the channel
bracket.
(2) Install the channel bracket and grommet
retainer on the frame rail (Fig. 34).
(3) Install the 2 bolts (Fig. 34) attaching the chan-
nel bracket to frame. Tighten the 2 attaching bolts to
a torque of 11 N´m (95 in. lbs.).
(4) Insert speed sensor cable grommets into inter-
mediate bracket on strut (Fig. 37). Route cable from
strut to steering knuckle on the rearward side of the
stabilizer bar link.
(5) Install the wheel speed sensor to steering
knuckle attaching bolt (Fig. 36). Tighten the speed
sensor attaching bolt to a torque of 12 N´m (105 in.
lbs.)
(6) Check the air gap between the face of the
wheel speed sensor and the top surface of the tone-
wheel. Air gap must be less then the maximum
allowable tolerance of 1.2 mm (.047 in.).
(7) Install the wheel and tire assembly on vehicle.
(8) Road test vehicle to ensure proper operation of
the base and ABS brake systems.
WHEEL SPEED SENSOR (REAR FWD)
REMOVE
(1) Raise vehicle on jack stands or centered on a
frame contact type hoist. See Hoisting in the Lubri-
cation and Maintenance section of this manual, for
the required lifting procedure to be used for this
vehicle.
(2) Remove the tire and wheel assembly from the
vehicle.
Fig. 35 Speed Sensor Cable To Vehicle Wiring
Harness
Fig. 36 Front Wheel Speed Sensor Attaching Bolt
Fig. 37 Front Wheel Speed Sensor Cable Routing
5 - 106 BRAKESNS
REMOVAL AND INSTALLATION (Continued)