(10) Remove clip attaching drain hose to brake
tube at master cylinder. Remove drain hose (Fig. 114)
from wiper module. Remove the 2 nuts attaching the
master cylinder assembly to the power brake vacuum
booster (Fig. 114).
NOTE: It is not necessary to remove the brake
tubes from the master cylinder when removing the
master cylinder from the power brake vacuum
booster.
(11) Remove the master cylinder and the brake
tubes as an assembly from power brake vacuum
booster. When master cylinder is removed, lay it out
of the way on top of the left motor mount(12) Disconnect vacuum hose from check valve
located on power brake vacuum booster.DO NOT
REMOVE CHECK VALVE FROM POWER
BRAKE BOOSTER.
(13) Locate the power brake vacuum booster input
rod to brake pedal attachment under instrument
panel. Position a small screwdriver between the cen-
ter tang on the power brake booster input rod to
brake pedal pin retaining clip (Fig. 115).
(14) Rotate screwdriver enough to allow retaining
clip center tang to pass over end of brake pedal pin.
Then pull retaining clip off brake pedal pin.Discard
retaining clip. It is not to be reused. Replace
only with a new retaining clip when assembled.
(15) Remove the 4 nuts attaching the vacuum
booster to the dash panel. Nuts are accessible from
under dash panel in area of the steering column and
pedal bracket assembly.
(16) From outside the vehicle, slide power brake
vacuum booster forward until its mounting studs
Fig. 111 Air Inlet Resonator
Fig. 112 Battery Tray Mounting Locations
Fig. 113 Electrical Connection To Fluid Level Sensor
Fig. 114 Master Cylinder Attachment To Power
Brake Vacuum Booster
5 - 50 BRAKESNS
REMOVAL AND INSTALLATION (Continued)
(11) Install the wiring harness connector on the
brake fluid level sensor in the master cylinder fluid
reservoir (Fig. 113).
(12) Install the battery tray in the vehicle. Install
the 2 bolts and the nut (Fig. 112) attaching the bat-
tery tray to the vehicle. Tighten the 2 bolts and the
nut to a torque of 14 N´m (125 in lbs.).
(13) If vehicle is equipped with speed control,
install the speed control servo and bracket on the
battery tray. Install and securely tighten bolt attach-
ing bracket to battery tray.
(14) If vehicle is equipped with speed control,
install the wiring harness connector on the speed
control servo. Then connect the vacuum lines onto
the speed control servo and vacuum reservoir on bat-
tery tray.
(15) Install the air inlet resonator and hoses as an
assembly on the throttle body and air cleaner hous-
ing (Fig. 111). Securely tighten the hose clamp at the
air cleaner housing and throttle body.
(16) Install the battery and the battery thermal
guard.
(17) Install the battery cables on the battery.
(18) Check the operation of the stop lamp switch
and adjust if necessary.
VACUUM BOOSTER 3.3/3.8 LITER ENGINE
REMOVE
CAUTION: Reserve vacuum in the vacuum booster
must be pumped down (removed) before removing
master cylinder from vacuum booster. This is nec-
essary to prevent the vacuum booster from sucking
in any contamination as the master cylinder is
removed. This can be done simply by pumping 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).
(2) Remove both battery cables from battery.
(3) Remove the battery thermal guard and the bat-
tery from the battery tray.
(4) Remove the air inlet resonator and hoses as an
assembly from the throttle body and air cleaner
housing (Fig. 118)
(5) If vehicle is equipped with speed control,
unplug wiring harness connector from the speed con-
trol servo. Then disconnect vacuum lines from the
speed control servo and vacuum reservoir on battery
tray.
(6) Remove bolt attaching the speed control servo
bracket to the battery tray. Slide the bracket forward
to unhook it from the battery tray and remove.
(7) Remove the 2 bolts and the nut (Fig. 119)
attaching the battery tray to the body of the vehicle.(8) Remove the wiring harness connector (Fig. 120)
from the EGR valve transducer.
(9) Remove wiring harness connectors from throt-
tle position sensor and AIS motor on throttle body
(Fig. 121).
(10) Remove the 2 bolts (Fig. 122) attaching the
throttle body to the intake manifold and the clip (Fig.
122) attaching the wiring harness to the throttle
cable bracket. Then remove the throttle body and
throttle cable bracket as an assembly from the intake
manifold.
(11) Remove wiring harness connector from brake
fluid level sensor in master cylinder fluid reservoir
(Fig. 123).
(12) Clean the area where the master cylinder
assembly attaches to the power brake booster. Use
Fig. 118 Air Inlet Resonator
Fig. 119 Battery Tray Mounting Locations
5 - 52 BRAKESNS
REMOVAL AND INSTALLATION (Continued)
only a solvent such as Mopar Brake Parts Cleaner or
an equivalent.
(13) Remove clip, attaching drain hose for wiper
module to brake tube at master cylinder. Remove
drain hose (Fig. 124) from wiper module. Remove the
2 nuts, attaching the master cylinder to the vacuum
booster (Fig. 124).
NOTE: It is not necessary to remove the brake
tubes from the master cylinder when removing the
master cylinder from the vacuum booster.
(14) Remove master cylinder and brake tubes as
an assembly from the vacuum booster. When mastercylinder is removed, lay it out of the way on top of
the left motor mount
Fig. 120 Electrical Connector At EGR Transducer
Fig. 121 Electrical And Vacuum Connections To
Throttle Body
Fig. 122 Throttle Body Attachment To Intake
Manifold
Fig. 123 Fluid Level Sensor Electrical Connection
Fig. 124 Master Cylinder Attachment To Vacuum
Booster
NSBRAKES 5 - 53
REMOVAL AND INSTALLATION (Continued)
CAUTION: The master cylinder is used to create
the seal for holding vacuum in the vacuum booster.
The vacuum seal on the master cylinder MUST be
replaced with a NEW seal whenever the master cyl-
inder is removed from the vacuum booster.
CAUTION: When removing the vacuum seal from
the master cylinder do not use a sharp tool.
(7) Using a soft tool such as a trim stick, remove
the vacuum seal from the master cylinder mounting
flange.
(8) Install aNEWvacuum seal on mounting flange
of the master cylinder (Fig. 128).
(9) Position master cylinder on studs of vacuum
booster, aligning push rod on vacuum booster with
master cylinder piston.
(10) Install the 2 nuts mounting the master cylin-
der to the vacuum booster (Fig. 124). Tighten both
mounting nuts to a torque of 25 N´m (225 in. lbs.).
(11) Install the wiper module drain hose (Fig. 124)
on the wiper module. Install the tie strap attaching
the wiper module drain hose to brake tube at the
master cylinder.Tie strap should be loosely tight-
ened so as not to collapse the wiper module
drain hose.
(12) Install the wiring harness connector on the
brake fluid level sensor in the master cylinder fluid
reservoir (Fig. 123).
(13) Install the throttle body and throttle cable
bracket on the intake manifold. Install the 2 bolts
(Fig. 122) attaching the throttle body to the intake
manifold and tighten to a torque of 25 N´m (225 in.
lbs.) Install clip (Fig. 122) attaching the wiring har-
ness to the throttle cable bracket.
(14) Install the wiring harness connectors on the
throttle position sensor and the AIS motor on throttle
body (Fig. 121).(15) Install the wiring harness connector (Fig. 120)
on the EGR valve transducer.
(16) Install the battery tray. Install the 2 bolts and
the nut (Fig. 119) attaching the battery tray to the
vehicle. Tighten the 2 bolts and the nut to a torque of
14 N´m (125 in lbs.).
(17) If vehicle is equipped with speed control,
install the speed control servo and bracket on the
battery tray. Install and securely tighten bolt attach-
ing bracket to battery tray.
(18) If vehicle is equipped with speed control,
install the wiring harness connector on the speed
control servo. Then connect the vacuum lines onto
the speed control servo and vacuum reservoir on bat-
tery tray.
(19) Install the air inlet resonator and hoses as an
assembly on the throttle body and air cleaner hous-
ing (Fig. 118). Securely tighten hose clamp at air
cleaner housing and throttle body.
(20) Install the battery and the battery thermal
guard.
(21) Install the battery cables on the battery.
(22) Check the operation of the stop lamp switch
and adjust if necessary.
JUNCTION BLOCK
REMOVE
(1) Using a brake pedal depressor, move and lock
the brake pedal to a position past its first 1 inch of
travel. This will prevent brake fluid from draining
out of the master cylinder when the brake tubes are
removed from the junction block.
(2) Raise vehicle on jackstands or centered on a
hoist. See Hoisting in the Lubrication And Mainte-
nance Group of this service manual.
CAUTION: Before removing the brake tubes from
the junction block, the junction block and the brake
tubes must be thoroughly cleaned. This is required
to prevent contamination from entering the brake
hudraulic system.
(3) Remove the 6 chassis brake tubes (Fig. 129)
from the junction block.
(4) Remove the bolt (Fig. 130) attaching the junc-
tion block mounting braket to the front suspension
cradle.
INSTALL
(1) Install the junction block and mounting bracket
(Fig. 130) on the front suspension cradle. Install the
attaching bolt and tighten to a torque of 28 N´m (250
in. lbs.).
(2) Install the 6 chassis brake tubes (Fig. 131) into
the inlet and outlet ports of the junction block.
Fig. 128 Vacuum Seal Installed On Master Cylinder
NSBRAKES 5 - 55
REMOVAL AND INSTALLATION (Continued)
145).(12) Remove the rotor from the hub/bearing.
(13) Remove the horseshoe clip (Fig. 146) from the
retainer on the end of the park brake cable.
(14) Remove the end of the park brake cable from
the actuator lever on the adapter (Fig. 146).
(15) Remove the end of the park brake cable from
the adapter. Park brake cable is removed from
adapter using a 1/2 wrench slipped over the park
brake cable retainer as show in (Fig. 147) to com-
press the locking tabs on the park brake cable
retainer.
(16) Remove the attaching bolt from the wheel
speed sensor (Fig. 148). Then remove wheel speed
sensor from hub/bearing and adapter.
(17) Remove the hub/bearing to axle mounting
bolts (Fig. 149).
(18) Remove the hub/bearing from the axle and the
stub shaft of the outer C/V joint (Fig. 150).
(19) Remove the adapter from the rear axle.
(20) Mount the adapter in a vise using the anchor
boss for the park brake cable (Fig. 151).
Fig. 143 Removing Caliper Guide Pin Bolts
Fig. 144 Removing / Installing Caliper
Fig. 145 Correctly Supported Caliper
Fig. 146 Park Brake Cable Attachment To Actuator
Fig. 147 Park Brake Cable Removal From Adapter
NSBRAKES 5 - 61
REMOVAL AND INSTALLATION (Continued)
(21) Remove the lower return spring (Fig. 152)
from the leading and trailing park brake shoes.
(22) Remove the hold down spring and pin (Fig.
153) from the leading park brake shoe.
Fig. 148 Speed Sensor Attaching Bolt
Fig. 149 Hub/Bearing Mounting Bolts
Fig. 150 Hub/Bearing Removal And Installation
Fig. 151 Adapter Mounted In Vise
Fig. 152 Lower Return Spring
Fig. 153 Leading Brake Shoe Hold Down Pin And
Spring
5 - 62 BRAKESNS
REMOVAL AND INSTALLATION (Continued)
NOTE: When the hold down pin is installed, the
long part of the hold down pin is to be positioned
strait up and down. This will ensure that the hold
down pin is correctly engaged with the adapter.
(6) Install the hold down spring and pin (Fig. 153)
on the leading park brake shoe.
(7) Install the lower return spring (Fig. 152) on
the leading and trailing park brake shoes.When
installing the hold down spring it is to be
installed behind the park brake shoes (Fig.
152).
(8) Install the 4 mounting bolts for the adapter
and hub/bearing into the bolt holes in the axle.
(9) Position the adapter on the 4 mounting bolts
installed in the rear axle (Fig. 158).
(10) Install the hub/bearing on the stub shaft of
outer C/V joint and into the end of the axle. (Fig.
150).
(11) In a progressive criss-cross pattern, tighten
the 4 hub/bearing mounting bolts until the hub/bear-
ing is squarely seated against the axle. Then tighten
the hub/bearing mounting bolts to a torque of 129
N´m (95 ft. lbs.).
(12) Install the wheel speed sensor on the hub/
bearing and adapter. Install the wheel speed sensor
attaching bolt (Fig. 148). Tighten the wheel speed
sensor attaching bolt to a torque of 12 N´m (105 in.
lbs).
(13) Install the park brake cable into its mounting
hole in the adapter.Be sure all the locking tabs
on the park brake cable retainer are expanded
out to ensure the cable will not pull out of the
adapter.
(14) Install the end of the park brake cable on the
park brake actuator lever (Fig. 146).
NOTE: The horseshoe clip must be installed and
installed properly when the park brake cable isinstalled in the adapter. The purpose of the horse-
shoe clip is to prevent park brake cable retainer
from moving in the adapter. If horseshoe clip is not
installed the park brake cable retainer will rattle in
the adapter.
(15) Install aNEWhorseshoe clip on the park
brake cable retainer (Fig. 146). The horseshoe clip is
installed between the retainer for the park brake
cable and the adapter. Horseshoe clip must be
installed with the curved end of the clip pointing
straight up and the edge of the curved end facing
toward the rear of the vehicle (Fig. 146).
(16) Remove the locking pliers (Fig. 142) from the
front park brake cable.
(17) Adjust the park brake drum-in-hat brake
shoes. See Park Brake Shoe Adjustment in the
adjustment section in this group of the service man-
ual for the proper park brake shoe adjustment proce-
dure.
(18) Install the rotor on the hub/bearing.
(19) Carefully lower caliper and brake shoes over
rotor and onto the adapter using the reverse proce-
dure for removal (Fig. 144).
CAUTION: When installing guide pin bolts extreme
caution should be taken not to crossthread the cal-
iper guide pin bolts.
(20) Install the caliper guide pin bolts (Fig. 143).
Tighten the guide pin bolts to a torque of 22 N´m
(192 in. lbs.).
(21) Clean all foreign material off the threads of
the outer C/V joint stub shaft. Install the washer and
hub nut (Fig. 141) on the stub shaft of the outer C/V
joint.
(22) Set the parking brake.
(23) Tighten the hub nut to a torque of 244 N´m
(180 ft. lbs.).
(24) Install the spring washer (Fig. 140) on the
stub shaft of the outer C/V joint.
(25) Install the nut retainer and cotter pin (Fig.
139) on the stub shaft of the outer C/V joint.
(26) Install the wheel and tire assembly.
(27) 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.).
(28) Remove jackstands or lower hoist.
(29)Fully apply and release the park brake
pedal one time. This will seat and correctly
adjust the park brake cables.
CAUTION: Before moving vehicle, pump the brake
pedal several times to insure the vehicle has a firm
brake pedal to adequately stop vehicle.
Fig. 158 Adapter Installed On Mounting Bolts
5 - 64 BRAKESNS
REMOVAL AND INSTALLATION (Continued)
MASTER CYLINDER FLUID RESERVOIR FILL TUBE
The master cylinder fluid reservoir filler neck is
removable from the master cylinder fluid reservoir.
The filler neck if required, can be replaced as a sep-
arate component of the fluid reservoir.
The filler neck is removed and installed using the
following procedure.
REMOVE
(1) Check brake fluid level in master cylinder fluid
reservoir to be sure brake fluid is not in the filler
neck. If brake fluid is in filler neck, lower fluid level
before removing filler neck from fluid reservoir
(2) Grasp filler neck at cap end (Fig. 177) and
push straight down. This will cause the filler neck to
pop out of the fluid reservoir.
INSTALL
(1) Wet the O-ring on the reservoir end of the filler
neck with fresh clean brake fluid.
(2) Position the filler neck in the opening on the
fluid reservoir. Ensure tab on filler neck (Fig. 177) is
in the groove on the front of the fluid reservoir.
(3) Push down while slightly rocking filler neck
until filler neck snaps into the fluid reservoir open-
ing.
(4) Install cap on filler neck.
(5) Check and/or add brake fluid in reservoir to
ensure it is at the correct level.
MASTER CYLINDER BRAKE FLUID LEVEL SWITCH
The master cylinder or brake fluid reservoir does
not have to be removed from the vehicle for replace-
ment of the brake fluid level sensor.
(1) Remove wiring harness connector from brake
fluid reservoir level sensor (Fig. 178).
(2) Using fingers, compress the retaining tabs on
the end of brake fluid level switch (Fig. 179).(3) With retaining tabs compressed, (Fig. 179)
grasp opposite end of brake fluid level switch and
pull it out of master cylinder brake fluid reservoir.
(4) Insert the replacement brake fluid level sensor
into brake fluid reservoir. Be sure sensor is pushed
in until retaining tabs (Fig. 179) lock it to the brake
fluid reservoir.
(5) Connect the vehicle wiring harness connector
to the brake fluid level sensor (Fig. 178).
FRONT DISC BRAKE CALIPER
CLEANING AND INSPECTION
Check for brake fluid leaks in and around dust
boot area and inboard brake pad, and for any rup-
tures, brittleness or damage to the piston dust boot.
If the dust boot is damaged, or a fluid leak is visible,
disassemble caliper assembly and install a new pis-
ton seal and dust boot, and piston if scored. Refer to
Caliper Disassembly And Re-Assembly Procedures in
Disc Brake Caliper Service in this section of the ser-
vice manual.
Fig. 177 Master Cylinder Fluid Reservoir Filler Neck
Fig. 178 Fluid Level Sensor Electrical Connection
Fig. 179 Master Cylinder Brake Fluid Level Sensor
NSBRAKES 5 - 71
DISASSEMBLY AND ASSEMBLY (Continued)