brake CHRYSLER VOYAGER 2005 Workshop Manual

DIFFERENTIAL & DRIVELINE
HALF SHAFT - FRONT
TABLE OF CONTENTS
page page
HALF SHAFT - FRONT
DESCRIPTION..........................1
DIAGNOSIS AND TESTING - HALF SHAFT.....1
REMOVAL.............................2
INSTALLATION..........................4
SPECIFICATIONS - HALF SHAFT - FRONT....6CV BOOT - INNER
REMOVAL.............................6
INSTALLATION..........................7
CV BOOT - OUTER
REMOVAL.............................10
INSTALLATION.........................11
HALF SHAFT - FRONT
DESCRIPTION
All vehicles use an unequal length half shaft sys-
tem (Fig. 1).
The left half shaft uses a tuned rubber damper
weight. When replacing the left half shaft, be sure
the replacement half shaft has the same damper
weight as the original.
All half shaft assemblies use the same type of
inner and outer joints. The inner joint of both half
shaft assemblies is a tripod joint, and the outer joint
of both half shaft assemblies is a Rzeppa joint. Both
tripod joints and Rzeppa joints are true constant
velocity (CV) joint assemblies. The inner tripod joint
allows for the changes in half shaft length through
the jounce and rebound travel of the front suspen-
sion.
On vehicles equipped with ABS brakes, the outer
CV joint is equipped with a tone wheel used to deter-
mine vehicle speed for ABS brake operation.
The inner tripod joint of both half shafts is splined
into the transaxle side gears. The inner tripod joints
are retained in the side gears of the transaxle using
a snap ring located in the stub shaft of the tripod
joint. The outer CV joint has a stub shaft that is
splined into the wheel hub and retained by a steel
hub nut.
DIAGNOSIS AND TESTING - HALF SHAFT
VEHICLE INSPECTION
(1) Check for grease in the vicinity of the inboard
tripod joint and outboard CV joint; this is a sign of
inner or outer joint seal boot or seal boot clamp dam-
age.
NOISE AND/OR VIBRATION IN TURNS
A clicking noise and/or a vibration in turns could
be caused by one of the following conditions:
²Damaged outer CV or inner tripod joint seal
boot or seal boot clamps. This will result in the loss
and/or contamination of the joint grease, resulting in
inadequate lubrication of the joint.
²Noise may also be caused by another component
of the vehicle coming in contact with the half shafts.
CLUNKING NOISE DURING ACCELERATION
This noise may be a result of one of the following
conditions:
²A torn seal boot on the inner or outer joint of the
half shaft assembly.
²A loose or missing clamp on the inner or outer
joint of the half shaft assembly.
²A damaged or worn half shaft CV joint.
SHUDDER OR VIBRATION DURING ACCELERATION
This problem could be a result of:
²A worn or damaged half shaft inner tripod joint.
RSDIFFERENTIAL & DRIVELINE3-1

(4) With the vehicle's brakes applied to keep hub
from turning,loosen and removethe half shaft
nut.
(5) Remove the two front disc brake caliper
adapter to steering knuckle attaching bolts (Fig. 4).
(6) Remove the disc brake caliper assembly from
the steering knuckle. Caliper assembly is removed by
first rotating top of caliper assembly away from
steering knuckle and then removing bottom of assem-
bly out from under machined abutment on steering
knuckle.(7) Support disc brake caliper assembly by using a
wire hook and suspending it from the strut assembly
(Fig. 5).Do not allow the brake caliper assembly
to hang by the brake flex hose.
(8) Remove the brake rotor from the hub and bear-
ing assembly.
(9) Remove the steering knuckle-to-strut attach-
ment bolts (Fig. 6) from the steering knuckle.
(10) Pull the steering knuckle from the strut clevis
bracket.
Fig. 3 Wave Washer
1 - HUB/BEARING ASSEMBLY
2 - WAVE WASHER
3 - STUB AXLE
Fig. 4 Front Brake Mounting
1 - BRAKE ROTOR
2 - HUB AND BEARING
3 - STEERING KNUCKLE
4 - ADAPTER MOUNTING BOLTS
5 - BRAKE CALIPER
6 - ADAPTER
7 - CLIP
Fig. 5 Properly Supported Disc Brake Caliper -
Typical
1 - STEERING KNUCKLE
2 - BRAKE FLEX HOSE
3 - CALIPER ASSEMBLY
4 - WIRE HANGER
5 - STRUT ASSEMBLY
Fig. 6 Strut To Steering Knuckle Attaching Bolts
1 - STRUT CLEVIS BRACKET
2 - NUTS AND BOLTS
3 - STEERING KNUCKLE
RSHALF SHAFT - FRONT3-3
HALF SHAFT - FRONT (Continued)

(6) Slide half shaft back into front hub and bear-
ing assembly.
CAUTION: The steering knuckle to strut assembly
attaching bolts are serrated and must not be turned
during installation. Install nuts while holding bolts
stationary in the steering knuckle.
CAUTION: If the vehicle being serviced is equipped
with eccentric strut assembly attaching bolts, the
eccentric bolt must be installed in the bottom (slot-
ted) hole on the strut clevis bracket (Fig. 10).
(7) Install steering knuckle in clevis bracket of
strut damper assembly. Install the strut damper to
steering knuckle attaching bolts. Tighten both bolts
to a torque of 88 N´m (65 ft. lbs.) plus an additional
1/4 turn.
(8) Install braking disc on hub and bearing assem-
bly.
(9) Install disc brake caliper assembly on steering
knuckle. Caliper is installed by first sliding bottom of
caliper assembly under abutment on steering
knuckle, and then rotating top of caliper against top
abutment.
(10) Install disc brake caliper adapter to steering
knuckle attaching bolts (Fig. 4). Tighten the discbrake caliper adapter attaching bolts to a torque of
169 N´m (125 ft. lbs.).
(11) Clean all foreign matter from the threads of
the outer CV joint. Install the washer and half shaft
to hub/bearing assembly nut on half shaft and
securely tighten nut.
(12) Install front wheel and tire assembly. Install
and tighten the wheel mounting stud nuts in proper
sequence until all nuts are torqued to half the
required specification. Then repeat the tightening
sequence to the full specified torque of 135 N´m (100
ft. lbs.).
(13) Lower vehicle.
(14) With the vehicle's brakes applied to keep hub
from turning, tighten the hub nut to a torque of 244
N´m (180 ft. lbs.) (Fig. 11).
(15) Install the spring wave washer on the end of
the half shaft.
(16) Install the hub nut lock, and anewcotter pin
(Fig. 2). Wrap cotter pin prongs tightly around the
hub nut lock as shown in (Fig. 2).
(17) Check for correct fluid level in transaxle
assembly. (Refer to 21 - TRANSMISSION/TRANS-
AXLE/AUTOMATIC - 41TE/FLUID - STANDARD
PROCEDURE)
Fig. 10 Correctly Installed Eccentric Attaching Bolt
1 - STEERING KNUCKLE
2 - FLANGED BOLT IN TOP HOLE
3 - CAM BOLT IN BOTTOM HOLE
4 - STRUT CLEVIS BRACKET
Fig. 11 Torquing Front Half Shaft To Hub Nut
1 - TORQUE WRENCH
RSHALF SHAFT - FRONT3-5
HALF SHAFT - FRONT (Continued)

BRAKES
TABLE OF CONTENTS
page page
BRAKES - BASE........................... 1BRAKES - ABS........................... 87
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............................8
SPECIFICATIONS
BRAKE FASTENER TORQUE.............9
SPECIAL TOOLS
BASE BRAKE SYSTEM.................10
BRAKE FLUID LEVEL SWITCH
DESCRIPTION.........................10
OPERATION...........................10
REMOVAL.............................11
INSTALLATION.........................11
ADJUSTABLE PEDALS SWITCH
REMOVAL.............................11
INSTALLATION.........................11
HYDRAULIC/MECHANICAL
DESCRIPTION
DESCRIPTION - DISC BRAKES (FRONT) . . . 11
DESCRIPTION - DISC BRAKES (REAR)....13
DESCRIPTION - DISC BRAKES (EXPORT) . . 13
DESCRIPTION - DRUM BRAKES (REAR) . . . 13
OPERATION
OPERATION - DISC BRAKES (FRONT).....13
OPERATION - DISC BRAKES (REAR)......14
DIAGNOSIS AND TESTING - DRUM BRAKE
AUTOMATIC ADJUSTER................14
BRAKE LINES
DESCRIPTION - BRAKE TUBES AND HOSES..14
OPERATION - BRAKE TUBES AND HOSES . . . 14INSPECTION - BRAKE TUBES AND HOSES . . . 14
BRAKE PADS/SHOES - FRONT
REMOVAL
REMOVAL - FRONT DISC BRAKE SHOES
(CONTINENTAL TEVES BRAKES).........15
REMOVAL - FRONT DISC BRAKE SHOES
(TRW BRAKES).......................15
CLEANING - DISC BRAKE SHOES..........16
INSPECTION - DISC BRAKE SHOES........16
INSTALLATION
INSTALLATION - FRONT DISC BRAKE
SHOES (CONTINENTAL TEVES BRAKES) . . . 16
INSTALLATION - FRONT DISC BRAKE
SHOES (TRW BRAKES)................17
BRAKE PADS/SHOES - REAR DISC
REMOVAL - REAR DISC BRAKE SHOES.....17
CLEANING - DISC BRAKE SHOES..........18
INSPECTION - DISC BRAKE SHOES........18
INSTALLATION - REAR DISC BRAKE SHOES . . 19
BRAKE PADS/SHOES - REAR DRUM
REMOVAL - REAR DRUM BRAKE SHOES....19
INSPECTION - REAR DRUM BRAKE SHOE
LINING..............................22
INSTALLATION - REAR DRUM BRAKE SHOES..22
ADJUSTMENTS
ADJUSTMENT - REAR DRUM BRAKE
SHOES.............................23
DISC BRAKE CALIPER - FRONT
REMOVAL
REMOVAL - FRONT DISC BRAKE CALIPER
(CONTINENTAL TEVES BRAKES).........24
REMOVAL - FRONT DISC BRAKE CALIPER
(TRW BRAKES).......................24
DISASSEMBLY
DISASSEMBLY - CALIPER GUIDE PIN
BUSHINGS (CONTINENTAL TEVES
BRAKES)............................24
RSBRAKES5-1

DISASSEMBLY - CALIPER PISTON AND
SEAL...............................24
CLEANING - CALIPER...................25
INSPECTION - CALIPER..................25
ASSEMBLY
ASSEMBLY - CALIPER GUIDE PIN
BUSHINGS (CONTINENTAL TEVES
BRAKES)............................25
ASSEMBLY - CALIPER PISTON AND SEAL . . 26
INSTALLATION
INSTALLATION - FRONT DISC BRAKE
CALIPER (CONTINENTAL TEVES
BRAKES)............................27
INSTALLATION - FRONT DISC BRAKE
CALIPER (TRW BRAKES)...............27
DISC BRAKE CALIPER - REAR
REMOVAL - REAR DISC BRAKE CALIPER....28
DISASSEMBLY - CALIPER PISTON AND SEAL..28
CLEANING - CALIPER...................29
INSPECTION - CALIPER..................29
ASSEMBLY - CALIPER PISTON AND SEAL . . . 30
INSTALLATION - REAR DISC BRAKE CALIPER..30
DISC BRAKE CALIPER ADAPTER
REMOVAL - FRONT DISC BRAKE CALIPER
ADAPTER...........................31
INSTALLATION - FRONT DISC BRAKE
CALIPER ADAPTER....................31
DISC BRAKE CALIPER GUIDE PINS
REMOVAL - DISC BRAKE CALIPER GUIDE
PINS (TRW BRAKES)..................31
INSTALLATION - DISC BRAKE CALIPER
GUIDE PINS (TRW BRAKES).............32
DRUM
REMOVAL.............................32
INSTALLATION.........................32
FLUID
DIAGNOSIS AND TESTING - BRAKE FLUID
CONTAMINATION.....................33
STANDARD PROCEDURE - BRAKE FLUID
LEVEL CHECKING.....................33
SPECIFICATIONS
BRAKE FLUID........................33
JUNCTION BLOCK
DESCRIPTION - NON-ABS JUNCTION BLOCK..33
OPERATION - NON-ABS JUNCTION BLOCK . . 33
REMOVAL - NON-ABS JUNCTION BLOCK....34
INSTALLATION - NON-ABS JUNCTION BLOCK..34
MASTER CYLINDER
DESCRIPTION
DESCRIPTION........................35
DESCRIPTION - RHD..................35
OPERATION...........................36
STANDARD PROCEDURE - MASTER
CYLINDER BLEEDING..................36
REMOVAL
REMOVAL - LHD......................36
REMOVAL - RHD......................37DISASSEMBLY - MASTER CYLINDER (FLUID
RESERVOIR).........................38
ASSEMBLY - MASTER CYLINDER (FLUID
RESERVOIR).........................39
INSTALLATION
INSTALLATION - LHD..................39
INSTALLATION - RHD..................39
PEDALS - ADJUSTABLE
REMOVAL.............................40
INSTALLATION.........................43
PEDAL TORQUE SHAFT - RHD
REMOVAL.............................44
INSTALLATION.........................44
POWER BRAKE BOOSTER
DESCRIPTION.........................45
OPERATION...........................46
DIAGNOSIS AND TESTING - POWER BRAKE
BOOSTER...........................46
REMOVAL
REMOVAL - LHD......................46
REMOVAL - RHD......................48
INSTALLATION
INSTALLATION - LHD..................50
INSTALLATION - RHD..................51
PROPORTIONING VALVE
DESCRIPTION - PROPORTIONING VALVE
(HEIGHT SENSING)....................53
OPERATION - PROPORTIONING VALVE
(HEIGHT SENSING)....................53
DIAGNOSIS AND TESTING -
PROPORTIONING VALVE (HEIGHT
SENSING)...........................54
REMOVAL - PROPORTIONING VALVE
(HEIGHT SENSING)....................55
INSTALLATION - PROPORTIONING VALVE
(HEIGHT SENSING)....................55
ROTOR
DIAGNOSIS AND TESTING - BRAKE ROTOR . . 55
STANDARD PROCEDURE - BRAKE ROTOR
MACHINING..........................58
REMOVAL - FRONT BRAKE ROTOR........59
INSTALLATION - FRONT BRAKE ROTOR.....59
SPECIFICATIONS
BRAKE ROTOR.......................60
BRAKE ROTOR - EXPORT..............60
SUPPORT PLATE - DRUM BRAKE
REMOVAL.............................61
INSTALLATION.........................61
WHEEL CYLINDERS
REMOVAL.............................62
INSPECTION..........................62
INSTALLATION.........................62
PARKING BRAKE
DESCRIPTION
DESCRIPTION........................62
DESCRIPTION - EXPORT...............63
OPERATION...........................63
5 - 2 BRAKES - BASERS

STANDARD PROCEDURE
STANDARD PROCEDURE - PARKING
BRAKE AUTOMATIC ADJUSTER TENSION
RELEASE...........................63
STANDARD PROCEDURE - PARKING
BRAKE AUTOMATIC ADJUSTER TENSION
RESET.............................64
STANDARD PROCEDURE - CABLE END
CLEANING AND LUBRICATION...........65
ADJUSTMENTS
ADJUSTMENT - PARKING BRAKE
CABLES............................65
CABLE - PARKING BRAKE FRONT
REMOVAL
REMOVAL...........................66
REMOVAL - FOLD-IN-FLOOR SEATING.....66
REMOVAL - EXPORT..................67
INSTALLATION
INSTALLATION.......................67
INSTALLATION - FOLD-IN-FLOOR SEATING . 68
INSTALLATION - EXPORT...............68
CABLE - PARKING BRAKE INTERMEDIATE
REMOVAL.............................69
INSTALLATION.........................69CABLE - PARKING BRAKE REAR
REMOVAL
REMOVAL - RIGHT REAR...............70
REMOVAL - LEFT REAR................71
REMOVAL - FOLD-IN-FLOOR SEATING.....72
INSTALLATION
INSTALLATION - RIGHT REAR...........74
INSTALLATION - LEFT REAR............75
INSTALLATION - FOLD-IN-FLOOR
SEATING............................75
LEVER - PARKING BRAKE
REMOVAL.............................75
INSTALLATION.........................76
LEVER - PARKING BRAKE (EXPORT)
REMOVAL - PARKING BRAKE LEVER AND
FRONT CABLE.......................77
INSTALLATION - PARKING BRAKE LEVER
AND FRONT CABLE...................77
SHOES - PARKING BRAKE
REMOVAL.............................78
INSTALLATION.........................84
ADJUSTMENTS
ADJUSTMENT - PARKING BRAKE SHOES . . 85
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
come in contact with a hub mounted drum (drum for
disc/drum brakes or drum-in-hat for disc/disc brakes)
and hold it in place.
RSBRAKES - BASE5-3

WARNING
WARNING: DUST AND DIRT ACCUMULATING ON
BRAKE PARTS DURING NORMAL USE MAY CON-
TAIN ASBESTOS FIBERS FROM PRODUCTION OR
AFTERMARKET BRAKE LININGS. BREATHING
EXCESSIVE CONCENTRATIONS OF ASBESTOS
FIBERS CAN CAUSE SERIOUS BODILY HARM.
EXERCISE CARE WHEN SERVICING BRAKE
PARTS. DO NOT SAND OR GRIND BRAKE LINING
UNLESS EQUIPMENT USED IS DESIGNED TO CON-
TAIN THE DUST RESIDUE. DO NOT CLEAN BRAKE
PARTS WITH COMPRESSED AIR OR BY DRY
BRUSHING. CLEANING SHOULD BE DONE BY
DAMPENING THE BRAKE COMPONENTS WITH A
FINE MIST OF WATER, THEN WIPING THE BRAKE
COMPONENTS CLEAN WITH A DAMPENED CLOTH.
DISPOSE OF CLOTH AND ALL RESIDUE CONTAIN-
ING ASBESTOS FIBERS IN AN IMPERMEABLE
CONTAINER WITH THE APPROPRIATE LABEL. FOL-
LOW PRACTICES PRESCRIBED BY THE OCCUPA-
TIONAL SAFETY AND HEALTH ADMINISTRATION
(OSHA) AND THE ENVIRONMENTAL PROTECTION
AGENCY (EPA) FOR THE HANDLING, PROCESSING,
AND DISPOSING OF DUST OR DEBRIS THAT MAY
CONTAIN ASBESTOS FIBERS.
CAUTION
CAUTION: During service procedures, grease or
any other foreign material must be kept off brake
shoes and braking surfaces of brake rotor or drum,
and external surfaces of hub and bearing assembly.
CAUTION: Brake rotor and caliper handling must be
done in such a way as to avoid damage to the rotor,
especially the machined surfaces, and scratching or
nicking of the brake linings.
CAUTION: Only the recommended jacking or hoist-
ing procedures for this vehicle are to be used
whenever it is necessary to lift a vehicle. Failure to
raise a vehicle utilizing the recommended lift points
can result in damage to the vehicle. (Refer to
LUBRICATION & MAINTENANCE/HOISTING - STAN-
DARD PROCEDURE)
DIAGNOSIS AND TESTING - BASE BRAKE
SYSTEM
NOTE: There are three diagnosis charts following
that cover the RED BRAKE WARNING INDICATOR
LAMP, BRAKE NOISE and OTHER BRAKE CONDI-
TIONS.
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.
5 - 4 BRAKES - BASERS
BRAKES - BASE (Continued)

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).
SCRAPING (METAL-TO-
METAL).1. Foreign object interference with
brakes.1. Inspect brakes and remove foreign
object.
2. Brake shoes worn out. 2. Replace brake shoes. Inspect rotors and
drums. Reface or replace as necessary.
RSBRAKES - BASE5-5
BRAKES - BASE (Continued)

OTHER BRAKE CONDITIONS
CONDITION POSSIBLE CAUSES CORRECTION
BRAKES CHATTER 1. 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.
BRAKES DRAG (FRONT
OR ALL)1. Contaminated brake fluid. 1. Check for swollen seals. Replace all
system components containing rubber.
2. Binding caliper pins or bushings. 2. Replace pins and bushings.
3. Binding master cylinder. 3. Replace master cylinder.
4. Binding brake pedal. 4. Replace brake pedal.
5. Brake lamp switch not adjusted
properly and mounting bracket is
bent.5. Straighten mounting bracket and
replace brake lamp switch.
BRAKES DRAG (REAR
ONLY)1. Parking brake cables binding or
froze up.1. Check cable routing. Replace cables
as necessary.
2. Parking brake cable return spring
not returning shoes.2. Replace cables as necessary.
3. Service brakes not adjusted
properly (rear drum brakes only).3. Follow the procedure listed in the
adjustment section.
4. Rear disc brake parking brake not
properly adjusted.Adjust parking brake shoes.
BRAKES GRAB 1. Contaminated brake shoe linings. 1. Inspect and clean, or replace shoes.
Repair source of contamination.
2. Improper power brake booster
assist.2. Refer to power brake booster
diagnosis and testing.
EXCESSIVE PEDAL
EFFORT1. Obstruction of brake pedal. 1. Inspect, remove or move obstruction.
2. Low power brake booster assist
(vacuum leak).2. Refer to power brake booster
diagnosis and testing.
3. Glazed brake linings. 3. Reface or replace brake rotors as
necessary. Replace brake shoes.
4. Brake shoe lining transfer to brake
rotor.4. Reface or replace brake rotors as
necessary. Replace brake shoes.
EXCESSIVE PEDAL
TRAVEL (VEHICLE STOPS
OK)1. Air in brake lines. 1. Bleed brakes.
2. Rear drum brake auto-adjuster
malfunctioning.2. Inspect and replace drum brake
components as necessary. Adjust rear
brakes.
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.
5 - 6 BRAKES - BASERS
BRAKES - BASE (Continued)

CONDITION POSSIBLE CAUSES CORRECTION
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.
RSBRAKES - BASE5-7
BRAKES - BASE (Continued)