2002 CHRYSLER CARAVAN ABS

BRAKES
TABLE OF CONTENTS
page page
BRAKES - BASE........................... 1BRAKES - ABS........................... 85
BRAKES - BASE
TABLE OF CONTENTS
page page
BRAKES - BASE
DESCRIPTION
DESCRIPTION - BASE BRAKES...........3
DESCRIPTION - BASE BRAKES (EXPORT) . . . 3
OPERATION - BASE BRAKES..............3
WARNING.............................4
CAUTION..............................4
DIAGNOSIS AND TESTING - BASE BRAKE
SYSTEM.............................4
STANDARD PROCEDURE - BASE BRAKE
BLEEDING............................7
SPECIFICATIONS
BRAKE FASTENER TORQUE.............9
SPECIAL TOOLS
BASE BRAKE SYSTEM..................9
BRAKE FLUID LEVEL SWITCH
DESCRIPTION.........................10
OPERATION...........................10
REMOVAL.............................10
INSTALLATION.........................10
ADJUSTABLE PEDAL SWITCH
DESCRIPTION.........................11
DIAGNOSIS AND TESTING - ADJUSTABLE
PEDAL SWITCH.......................11
REMOVAL.............................11
INSTALLATION.........................12
PEDAL POSITION SENSOR
DESCRIPTION.........................12
DIAGNOSIS AND TESTING - PEDAL
POSITION SENSOR....................13
REMOVAL.............................13
INSTALLATION.........................13
HYDRAULIC/MECHANICAL
DESCRIPTION
DESCRIPTION - DISC BRAKES (FRONT) . . . 14
DESCRIPTION - DISC BRAKES (REAR)....15
DESCRIPTION - DISC BRAKES (EXPORT) . . 15DESCRIPTION - DRUM BRAKES (REAR) . . . 16
OPERATION
OPERATION - DISC BRAKES (FRONT).....16
OPERATION - DISC BRAKES (REAR)......16
DIAGNOSIS AND TESTING - DRUM BRAKE
AUTOMATIC ADJUSTER................16
BRAKE LINES
DESCRIPTION - BRAKE TUBES AND HOSES . 17
OPERATION - BRAKE TUBES AND HOSES . . . 17
INSPECTION - BRAKE TUBES AND HOSES . . . 17
BRAKE PADS/SHOES - FRONT
REMOVAL
REMOVAL - FRONT DISC BRAKE SHOES
(DISC/DISC BRAKES)..................17
REMOVAL - FRONT DISC BRAKE SHOES
(DISC/DRUM BRAKES).................18
CLEANING - DISC BRAKE SHOES..........18
INSPECTION - DISC BRAKE SHOES........18
INSTALLATION
INSTALLATION - FRONT DISC BRAKE
SHOES.............................19
INSTALLATION - FRONT DISC BRAKE
SHOES (DISC/DRUM BRAKES)...........19
BRAKE PADS/SHOES - REAR DISC
REMOVAL - REAR DISC BRAKE SHOES.....19
CLEANING - DISC BRAKE SHOES..........21
INSPECTION - DISC BRAKE SHOES........21
INSTALLATION - REAR DISC BRAKE SHOES . . 21
BRAKE PADS/SHOES - REAR DRUM
REMOVAL - REAR DRUM BRAKE SHOES....22
INSPECTION - REAR DRUM BRAKE SHOE
LINING..............................25
INSTALLATION - REAR DRUM BRAKE SHOES . 25
ADJUSTMENTS
ADJUSTMENT - REAR DRUM BRAKE
SHOES.............................26
RSBRAKES5-1
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DISC BRAKE CALIPER - FRONT
REMOVAL
REMOVAL - FRONT DISC BRAKE CALIPER
(DISC/DISC BRAKES)..................26
REMOVAL - FRONT DISC BRAKE CALIPER
(DISC/DRUM BRAKES).................26
DISASSEMBLY
DISASSEMBLY - CALIPER GUIDE PIN
BUSHINGS (DISC/DISC BRAKES).........27
DISASSEMBLY - CALIPER PISTON AND
SEAL...............................27
CLEANING - CALIPER...................28
INSPECTION - CALIPER..................28
ASSEMBLY
ASSEMBLY - CALIPER GUIDE PIN
BUSHINGS (DISC/DISC BRAKES).........28
ASSEMBLY - CALIPER PISTON AND SEAL . . 28
INSTALLATION
INSTALLATION - FRONT DISC BRAKE
CALIPER (DISC/DISC BRAKES)...........29
INSTALLATION - FRONT DISC BRAKE
CALIPER (DISC/DRUM BRAKES)..........30
DISC BRAKE CALIPER - REAR
REMOVAL - REAR DISC BRAKE CALIPER....30
DISASSEMBLY - CALIPER PISTON AND SEAL . 31
CLEANING - CALIPER...................32
INSPECTION - CALIPER..................32
ASSEMBLY - CALIPER PISTON AND SEAL . . . 32
INSTALLATION - REAR DISC BRAKE CALIPER . 33
DISC BRAKE CALIPER ADAPTER
REMOVAL - FRONT DISC BRAKE CALIPER
ADAPTER...........................34
INSTALLATION - FRONT DISC BRAKE
CALIPER ADAPTER....................34
DISC BRAKE CALIPER GUIDE PINS
REMOVAL - DISC BRAKE CALIPER GUIDE
PINS (DISC/DRUM BRAKES).............34
INSTALLATION - DISC BRAKE CALIPER
GUIDE PINS (DISC/DRUM BRAKES).......34
DRUM
REMOVAL.............................35
INSTALLATION.........................35
FLUID
DIAGNOSIS AND TESTING - BRAKE FLUID
CONTAMINATION.....................35
STANDARD PROCEDURE - BRAKE FLUID
LEVEL CHECKING.....................35
SPECIFICATIONS
BRAKE FLUID........................35
JUNCTION BLOCK
DESCRIPTION - NON-ABS JUNCTION BLOCK . 36
OPERATION - NON-ABS JUNCTION BLOCK . . 36
REMOVAL - NON-ABS JUNCTION BLOCK....36
INSTALLATION - NON-ABS JUNCTION BLOCK . 36
MASTER CYLINDER
DESCRIPTION
DESCRIPTION........................37DESCRIPTION - RHD..................38
OPERATION...........................38
STANDARD PROCEDURE - MASTER
CYLINDER BLEEDING..................38
REMOVAL
REMOVAL - LHD......................39
REMOVAL - RHD......................40
DISASSEMBLY - MASTER CYLINDER (FLUID
RESERVOIR).........................40
ASSEMBLY - MASTER CYLINDER (FLUID
RESERVOIR).........................41
INSTALLATION
INSTALLATION - LHD..................41
INSTALLATION - RHD..................42
PEDAL - ADJUSTABLE
DESCRIPTION.........................42
OPERATION...........................42
DIAGNOSIS AND TESTING - ADJUSTABLE
PEDAL SYSTEM......................43
REMOVAL.............................43
INSTALLATION.........................45
PEDAL TORQUE SHAFT - RHD
REMOVAL.............................47
INSTALLATION.........................47
POWER BRAKE BOOSTER
DESCRIPTION.........................48
OPERATION...........................49
DIAGNOSIS AND TESTING - POWER BRAKE
BOOSTER...........................49
REMOVAL
REMOVAL - LHD......................50
REMOVAL - RHD......................52
INSTALLATION
INSTALLATION - LHD..................53
INSTALLATION - RHD..................55
PROPORTIONING VALVE
DESCRIPTION - PROPORTIONING VALVE
(HEIGHT SENSING)....................56
OPERATION - PROPORTIONING VALVE
(HEIGHT SENSING)....................57
DIAGNOSIS AND TESTING -
PROPORTIONING VALVE (HEIGHT
SENSING)...........................57
REMOVAL - PROPORTIONING VALVE
(HEIGHT SENSING)....................58
INSTALLATION - PROPORTIONING VALVE
(HEIGHT SENSING)....................59
ROTOR
DIAGNOSIS AND TESTING - BRAKE ROTOR . . 59
STANDARD PROCEDURE - BRAKE ROTOR
MACHINING..........................61
REMOVAL - FRONT BRAKE ROTOR........62
INSTALLATION - FRONT BRAKE ROTOR.....62
SPECIFICATIONS
BRAKE ROTOR.......................63
BRAKE ROTOR - EXPORT..............63
5 - 2 BRAKES - BASERS
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SUPPORT PLATE - DRUM BRAKE
REMOVAL.............................64
INSTALLATION.........................64
WHEEL CYLINDERS
REMOVAL.............................65
INSPECTION..........................65
INSTALLATION.........................65
PARKING BRAKE
DESCRIPTION
DESCRIPTION........................65
DESCRIPTION - EXPORT...............66
OPERATION...........................66
STANDARD PROCEDURE
STANDARD PROCEDURE - PARKING
BRAKE AUTOMATIC ADJUSTER TENSION
RELEASE...........................66
STANDARD PROCEDURE - PARKING
BRAKE AUTOMATIC ADJUSTER TENSION
RESET.............................67
CABLES - PARKING BRAKE
REMOVAL
REMOVAL - PARKING BRAKE CABLE
(FRONT)............................67
REMOVAL - PARKING BRAKE CABLE
(INTERMEDIATE)......................68
REMOVAL - PARKING BRAKE CABLE
(RIGHT REAR)........................69
REMOVAL - PARKING BRAKE CABLE (LEFT
REAR)..............................70INSTALLATION
INSTALLATION - PARKING BRAKE CABLE
(FRONT)............................71
INSTALLATION - PARKING BRAKE CABLE
(INTERMEDIATE)......................71
INSTALLATION - PARKING BRAKE CABLE
(RIGHT REAR)........................72
INSTALLATION - PARKING BRAKE CABLE
(LEFT REAR).........................72
ADJUSTMENTS
ADJUSTMENT - PARKING BRAKE CABLES . 72
CABLES - PARKING BRAKE (EXPORT)
REMOVAL - FRONT CABLE...............72
INSTALLATION - FRONT CABLE............72
LEVER - PARKING BRAKE
REMOVAL.............................72
INSTALLATION.........................73
LEVER - PARKING BRAKE (EXPORT)
REMOVAL - PARKING BRAKE LEVER AND
FRONT CABLE.......................74
INSTALLATION - PARKING BRAKE LEVER
AND FRONT CABLE...................75
SHOES - PARKING BRAKE
REMOVAL.............................75
INSTALLATION.........................81
ADJUSTMENTS
ADJUSTMENT - PARKING BRAKE SHOES . . 83
BRAKES - BASE
DESCRIPTION
DESCRIPTION - BASE BRAKES
The base brake system consists of the following
components:
²Brake pedal
²Power brake booster
²Master cylinder
²Brake tubes and hoses
²Proportioning valve (non-ABS vehicles only)
²Disc brakes
²Drum brakes
²Brake lamp switch
²Brake fluid level switch
²Parking brakes
Front disc brakes control the braking of the front
wheels; rear braking is controlled by rear drum
brakes or rear disc brakes depending on options.
The hydraulic brake system is diagonally split on
both the non-antilock braking systems and antilock
braking systems. That means the left front and right
rear brakes are on one hydraulic circuit and the right
front and left rear are on the other.For information on the brake lamp switch, (Refer
to 8 - ELECTRICAL/LAMPS/LIGHTING - EXTERI-
OR/BRAKE LAMP SWITCH - DESCRIPTION)
Vehicles equipped with the optional antilock brake
system (ABS) use a system designated Mark 20e. It
is available with or without traction control. This
system shares most base brake hardware used on
vehicles without ABS. ABS components are described
in detail in ANTILOCK BRAKE SYSTEM.
DESCRIPTION - BASE BRAKES (EXPORT)
Four-Wheel Disc Antilock Brakes are standard on
all models.
OPERATION - BASE BRAKES
When a vehicle needs to be stopped, the driver
applies the brake pedal. The brake pedal pushes the
input rod of the power brake booster into the booster.
The booster uses vacuum to ease pedal effort as force
is transferred through the booster to the master cyl-
inder. The booster's output rod pushes in the master
cylinder's primary and secondary pistons applying
hydraulic pressure through the chassis brake tubes
to the brakes at each tire and wheel assembly.
The parking brakes are foot-operated. When
applied, the parking brake lever pulls on cables that
actuate brake shoes at each rear wheel. These shoes
RSBRAKES - BASE5-3
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RED BRAKE WARNING INDICATOR LAMP
CONDITION POSSIBLE CAUSES CORRECTION
RED BRAKE WARNING
LAMP ON1. Parking brake lever not fully
released.1. Release parking brake lever.
2. Parking brake warning lamp
switch on parking brake lever.2. Inspect and replace switch as necessary.
3. Brake fluid level low in reservoir. 3. Fill reservoir. Check entire system for
leaks. Repair or replace as required.
4. Brake fluid level switch. 4. Disconnect switch wiring connector. If
lamp goes out, replace switch.
5. Mechanical instrument cluster
(MIC) problem.5. Refer to appropriate Diagnostic
information.
6. Amber ABS Warning Indicator
Lamp also illuminated.6. Refer to appropriate Diagnostic
information.
BRAKE NOISE
CONDITION POSSIBLE CAUSES CORRECTION
CLICK OR SQUAWK ON
PEDAL APPLICATION1. Brake lamp switch. 1. Replace switch.
2. Brake Transmission Shift Interlock
Linkage.2. Lubricate BTSI linkage.
3. Pedal pivot bushings 3. Lubricate pivot bushings. Replace if
necessary.
DISC BRAKE CHIRP 1. Excessive brake rotor runout. 1. Follow brake rotor diagnosis and testing.
Correct as necessary.
2. Lack of lubricant on brake caliper
slides.2. Lubricate brake caliper slides.
3. Caliper/shoes not fully seated. 3. Reseat caliper/shoes.
DISC BRAKE RATTLE OR
CLUNK1. Broken or missing anti-rattle
spring clips on shoes.1. Replace brake shoes.
2. Caliper guide pins/bolts loose. 2. Tighten guide pins/bolts.
DISC BRAKE SQUEAK AT
LOW SPEED (WHILE
APPLYING LIGHT BRAKE
PEDAL EFFORT)1. Brake shoe linings. 1. Replace brake shoes.
DRUM BRAKE CHIRP 1. Lack of lubricant on brake shoe
support plate where shoes ride.1. Lubricate shoe contact areas on brake
shoe support plates.
DRUM BRAKE CLUNK 1. Drum(s) have threaded machined
braking surface.1. Replace brake drums as necessary.
DRUM BRAKE HOWL OR
MOAN1. Lack of lubricant on brake shoe
support plate where shoes ride and
at the anchor.1. Lubricate shoe contact areas on brake
shoe support plates and at the anchor.
2. Rear brake shoes. 2. Replace rear brake shoes.
DRUM BRAKE SCRAPING
OR WHIRRING1. ABS wheel speed sensor or tone
wheel.1. Inspect, correct or replace faulty
component(s).
RSBRAKES - BASE5-5
BRAKES - BASE (Continued)
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CONDITION POSSIBLE CAUSES CORRECTION
EXCESSIVE PEDAL
TRAVEL (ONE FRONT
WHEEL LOCKS UP
DURING HARD BRAKING)1. One of the two hydraulic circuits
to the front brakes is malfunctioning.1. Inspect system for leaks. Check
master cylinder for internal malfunction.
PEDAL PULSATES/
SURGES DURING
BRAKING1. Rear brake drum out of round or
disc brake rotor has excessive
thickness variation.1. Isolate condition as rear or front.
Reface or replace brake drums or
rotors as necessary.
PEDAL IS SPONGY 1. Air in brake lines. 1. Bleed brakes.
2. Power brake booster runout
(vacuum assist).2. Check booster vacuum hose and
engine tune for adequate vacuum
supply. Refer to power brake booster
diagnosis and testing.
PREMATURE REAR
WHEEL LOCKUP1. Contaminated brake shoe linings. 1. Inspect and clean, or replace shoes.
Repair source of contamination.
2. Inoperative proportioning valve
(non-ABS vehicles).2. Refer to proportioning valve
diagnosis and testing. Replace valve as
necessary.
3. Improper power brake booster
assist.3. Refer to power brake booster in the
diagnosis and testing section.
STOP/BRAKE LAMPS
S TAY O N1. Brake lamp switch out of
adjustment.1. Replace brake lamp switch.
2. Brake pedal binding. 2. Inspect and replace as necessary.
3. Obstruction in pedal linkage. 3. Remove obstruction.
4. Power Brake Booster not allowing
pedal to return completely.4. Replace power brake booster.
VEHICLE PULLS TO
RIGHT OR LEFT ON
BRAKING1. Frozen brake caliper piston. 1. Replace frozen piston or caliper.
Bleed brakes.
2. Contaminated brake shoe lining. 2. Inspect and clean, or replace shoes.
Repair source of contamination.
3. Pinched brake lines. 3. Replace pinched line.
4. Leaking piston seal. 4. Replace piston seal or brake caliper.
5. Suspension problem. 5. Refer to the Suspension group.
PARKING BRAKE -
EXCESSIVE HANDLE
TRAVEL1. Rear drum brakes or rear disc
brake parking brake shoes out of
adjustment.1. Adjust rear drum brake shoes, or
rear parking brake shoes on vehicles
with rear disc brakes.
STANDARD PROCEDURE - BASE BRAKE
BLEEDING
NOTE: This bleeding procedure is only for the vehi-
cle's base brakes hydraulic system. For bleeding
the antilock brakes hydraulic system, (Refer to 5 -
BRAKES - ABS - STANDARD PROCEDURE)CAUTION: Before removing the master cylinder
cover, thoroughly clean the cover and master cylin-
der fluid reservoir to prevent dirt and other foreign
matter from dropping into the master cylinder fluid
reservoir.
RSBRAKES - BASE5-7
BRAKES - BASE (Continued)
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(6) Check pedal travel. If pedal travel is excessive
or has not been improved, enough fluid has not
passed through the system to expel all the trapped
air. Be sure to monitor the fluid level in the pressure
bleeder, so it stays at a proper level so air will not
enter the brake system through the master cylinder.
(7) Perform a final adjustment of the rear brake
shoes (when applicable), then test drive vehicle to be
sure brakes are operating correctly and that pedal is
solid.
SPECIFICATIONS
BRAKE FASTENER TORQUE
DESCRIPTION N´mFt.
Lbs.In.
Lbs.
ABS ICU Mounting Bolts To
Bracket11 Ð 9 7
ABS ICU Mounting
Bracket-To-Cradle Bolts28 21 250
ABS CAB-To-HCU Mounting
Screws2Ð17
ABS Wheel Speed Sensor
Head Mounting Bolt - Front13 Ð 115
ABS Wheel Speed Sensor
Head Mounting Bolt - Rear10 Ð 90
Adjustable Pedal Position
Sensor Mounting Screws7.5 66 Ð
Adjustable Pedal Module
Mounting Screws2.0 15 Ð
DESCRIPTION N´mFt.
Lbs.In.
Lbs.
Brake Tube Nuts 17 Ð 145
Brake Hose Intermediate
Bracket Bolt12 Ð 105
Brake Hose-To-Caliper
Mounting Bolt47 35 Ð
Disc Brake Caliper Guide
Pin Bolts35 26 Ð
Disc Brake Caliper Bleeder
Screw15 Ð 125
Drum Brake Wheel Cylinder
Mounting Bolts8Ð75
Drum Brake Wheel Cylinder
Mounting Bleeder screw10 Ð 80
Drum Brake Support Plate
Mounting Bolts130 95 Ð
Junction Block (Non-ABS
Brakes) Mounting Bolts28 21 250
Master Cylinder Mounting
Nuts25 19 225
Power Brake Booster
Mounting Nuts28 21 250
Proportioning Valve
Mounting Bolts54 40 Ð
Proportioning Valve Axle
Bracket Mounting Bolt20 Ð 175
Parking Brake Lever (Pedal)
Mounting Bolts And Nut28 21 250
Wheel Mounting (Lug) Nuts 135 100 Ð
SPECIAL TOOLS
BASE BRAKE SYSTEM
Fig. 3 TOOL 6921 INSTALLED ON MASTER
CYLINDER
1 - SPECIAL TOOL 6921
2 - FLUID RESERVOIR
Tubes, Master Cylinder Bleeding 6920
RSBRAKES - BASE5-9
BRAKES - BASE (Continued)
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BRAKE FLUID LEVEL SWITCH
DESCRIPTION
The brake fluid level switch is located in the brake
fluid reservoir of the master cylinder (Fig. 4).
OPERATION
The purpose of the brake fluid level switch is to
provide the driver with an early warning that the
brake fluid level in the master cylinder fluid reser-
voir has dropped below a normal level. This may
indicate:
²Abnormal loss of brake fluid in the master cyl-
inder fluid reservoir resulting from a leak in the
hydraulic system.
²Brake shoe linings which have worn to a point
requiring replacement.
As the brake fluid drops below the minimum level,
the brake fluid level switch closes to complete the red
BRAKE warning indicator (lamp) circuit. This will
turn on the red BRAKE warning indicator. The mas-
ter cylinder fluid reservoir should be checked and
refilled to the Full mark with DOT 3 brake fluid.If
the brake fluid level has dropped below the add
line in the master cylinder fluid reservoir, the
entire brake hydraulic system should be
checked for evidence of a leak.
REMOVAL
(1) Remove wiring harness connector from brake
fluid reservoir level switch (Fig. 4).
(2) Using fingers, compress the retaining tabs on
the opposite end of brake fluid level switch.
(3) With retaining tabs compressed, grasp the con-
nector end of brake fluid level switch and pull it out
of master cylinder brake fluid reservoir.
INSTALLATION
(1) Insert brake fluid level switch into left side of
brake fluid reservoir. Be sure switch is pushed in
until retaining tabs lock it to brake fluid reservoir.
(2) Connect vehicle wiring harness connector to
brake fluid level switch (Fig. 4).
Tubes, Master Cylinder Bleed 8358
Adapter, Master Cylinder Pressure Bleed Cap 6921
Dial Indicator, C-3339
Gauge, Brake Safe-Set
Handle, Universal C±4171
Installer, Dust Boot C-4689 or C-4842
5 - 10 BRAKES - BASERS
BRAKES - BASE (Continued)
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ADJUSTABLE PEDAL SWITCH
DESCRIPTION
The adjustable pedal switch is mounted on the left
side of the lower steering column shroud (Fig. 5). The
adjustable pedal switch adjusts the adjustable pedal
assembly fore-and-aft. The pedal assembly moves in
the direction the switch is actuated.
DIAGNOSIS AND TESTING - ADJUSTABLE
PEDAL SWITCH
Refer to Appropriate Diagnostic Information.
REMOVAL
NOTE: Before proceeding, review all Steering Col-
umn and Airbag Warnings and Cautions. (Refer to
19 - STEERING/COLUMN - WARNING)(Refer to 8 -
ELECTRICAL/RESTRAINTS - WARNING)
(1) Remove battery ground cable terminal from
battery negative post and isolate.
(2) Under instrument panel, remove silencer panel
below lower steering column cover.
(3) Remove screws securing lower steering column
cover/knee blocker, then remove it (Fig. 6).
(4) Disconnect parking brake release link at
release handle.
(5) Compress tabs on sides of data link diagnostic
connector and remove it from knee blocker reinforce-
ment plate.
(6) Remove screws securing knee blocker reinforce-
ment plate in place, then remove reinforcement plate
(Fig. 6).
(7) Remove screws fastening upper and lower
steering column shrouds to steering column (Fig. 7).
(8) Remove the lower shroud with adjustable pedal
switch; disconnect switch wiring connector along left
side of column as shroud is removed (Fig. 8).
Fig. 4 MASTER CYLINDER AND BOOSTER
1 - POWER BRAKE BOOSTER
2 - BOOSTER IDENTIFICATION LABEL
3 - FLUID LEVEL SWITCH CONNECTOR
4 - PRIMARY BRAKE TUBE NUT
5 - SECONDARY BRAKE TUBE NUT
6 - MASTER CYLINDER
Fig. 5 Adjustable Pedal Switch Location
1 - ADJUSTABLE PEDAL SWITCH
2 - LOWER STEERING COLUMN SHROUD
Fig. 6 Lower Steering Column Cover And
Reinforcement
1 - INSTRUMENT PANEL
2 - REINFORCEMENT PLATE
3 - LOWER STEERING COLUMN COVER/KNEE BLOCKER
RSBRAKES - BASE5-11
BRAKE FLUID LEVEL SWITCH (Continued)
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