2005 CHRYSLER CARAVAN power steering

FLUID
DIAGNOSIS AND TESTING - BRAKE FLUID
CONTAMINATION
Indications of fluid contamination are swollen or
deteriorated rubber parts.
Swollen rubber parts indicate the presence of
petroleum in the brake fluid.
To test for contamination, put a small amount of
drained brake fluid in clear glass jar. If fluid sepa-
rates into layers, there is mineral oil or other fluid
contamination of the brake fluid.
If brake fluid is contaminated, drain and thor-
oughly flush system. Replace master cylinder, propor-
tioning valve, caliper seals, wheel cylinder seals,
Antilock Brake hydraulic unit and all hydraulic fluid
hoses.
STANDARD PROCEDURE - BRAKE FLUID
LEVEL CHECKING
Check master cylinder reservoir fluid level a mini-
mum of twice annually.
Fluid reservoirs are marked with the words FULL
and ADD to indicate proper brake fluid fill level of
the master cylinder.
If necessary, add brake fluid to bring the level to
the bottom of the FULL mark on the side of the mas-
ter cylinder fluid reservoir.
Use only Mopartbrake fluid or equivalent from a
sealed container. Brake fluid must conform to DOT 3
specifications (DOT 4 or DOT 4+ are acceptable).
DO NOTuse brake fluid with a lower boiling
point, as brake failure could result during prolonged
hard braking.
Use only brake fluid that was stored in a tightly-
sealed container.
DO NOTuse petroleum-based fluid because seal
damage will result. Petroleum based fluids would be
items such as engine oil, transmission fluid, power
steering fluid etc.
SPECIFICATIONS
BRAKE FLUID
The brake fluid used in this vehicle must conform
to DOT 3 specifications (DOT 4 and DOT 4+ are
acceptable) and SAE J1703 standards. No other type
of brake fluid is recommended or approved for usage
in the vehicle brake system. Use only MopartBrake
Fluid or equivalent from a tightly sealed container.CAUTION: Never use reclaimed brake fluid or fluid
from an container which has been left open. An
open container of brake fluid will absorb moisture
from the air and contaminate the fluid.
CAUTION: Never use any type of a petroleum-based
fluid in the brake hydraulic system. Use of such
type fluids will result in seal damage of the vehicle
brake hydraulic system causing a failure of the
vehicle brake system. Petroleum based fluids would
be items such as engine oil, transmission fluid,
power steering fluid, etc.
JUNCTION BLOCK
DESCRIPTION - NON-ABS JUNCTION BLOCK
A junction block is used on vehicles that are not
equipped with antilock brakes (ABS). The junction
block mounts in the same location as the integrated
control unit (ICU) does on vehicles equipped with
ABS. This allows for use of the same brake tube con-
figuration on all vehicles. The junction block is
located on the driver's side of the front suspension
cradle/crossmember below the master cylinder (Fig.
44).
It has six threaded ports to which the brake tubes
connect. Two are for the primary and secondary
brake tubes coming from the master cylinder. The
remaining four are for the chassis brake tubes going
to each brake assembly.
OPERATION - NON-ABS JUNCTION BLOCK
The junction block distributes the brake fluid com-
ing from the master cylinder primary and secondary
ports to the four chassis brake tubes leading to the
brakes at each wheel. Since the junction block
mounts in the same location as the ABS integrated
control unit (ICU), it allows for the common use of
brake tubes going to the brakes whether the vehicle
is equipped with or without ABS.
NOTE: Although the brake tubes coming from the
master cylinder to the junction block or ABS ICU
may appear to be the same, they are not. They are
unique to each brake system application.
RSBRAKES - BASE5-33

(24) Unfasten routing clips retaining vehicle wir-
ing harness to pedal wiring harness (Fig. 58).
(25) Remove power brake booster input rod from
brake pedal pin by performing following:
(a) Position small screwdriver between center
tang on retaining clip and brake pedal pin (Fig.
59).
(b) Rotate screwdriver, moving retaining clip
center tang enough to allow it to pass over end of
brake pedal pin, then slide retaining clip off brake
pedal pin.
(c) Discard retaining clip.Retaining clip must
not be reused. Install NEW retaining clip
when assembling.
(d) Slide booster input rod off pedal pin.
(26) Disconnect pedal adjuster cable at brake
pedal adjustment gear box (Fig. 60).
(27) Remove pedal adjuster cable from routing loop
on steering column bracket (Fig. 60), then pull gear
box end of cable upward, out of steering column
bracket, and down right side of pedals assembly.
(28) Remove four nuts attaching power brake
booster and pedals assembly to dash panel (Fig. 61).
(29) Remove two upper mounting bolts attaching
pedals assembly to steering column support bracket
on dash.
(30) Disconnect throttle cable retainer at accelera-
tor pedal, then remove cable from pedal.
(31) Remove adjustable pedals assembly.
Fig. 59 Input Rod Brake Pedal Retaining Clip
Removal
1 - BRAKE PEDAL
2 - INPUT ROD
3 - SCREWDRIVER
4 - RETAINING CLIP
5 - BRAKE PEDAL PIN
Fig. 60 Drive Cable Routing
1 - ADJUSTER CABLE
2 - ROUTING LOOP
3 - CABLE ATTACHMENT AT MOTOR
4 - GEAR DRIVE
5 - CABLE ATTACHMENT AT GEAR BOX
6 - STEERING COLUMN BRACKET
Fig. 61 Booster Mounting (Typical)
1 - DASH BRACKET
2 - POWER BRAKE BOOSTER
3 - BRAKE PEDAL ASSEMBLY
5 - 42 BRAKES - BASERS
PEDALS - ADJUSTABLE (Continued)

INSTALLATION
(1) Install adjustable pedals assembly under
instrument panel.
(2) Attach throttle cable to accelerator pedal using
cable retainer.
(3) Install two upper mounting bolts attaching
pedals assembly to steering column support bracket
on dash panel.Do not fully tighten at this time.
(4) Install four nuts attaching pedals assembly and
power brake booster to dash panel (Fig. 61).
(5) Tighten four booster mounting nuts and two
upper mounting bolts to 28 N´m (21 ft. lbs.) torque.
(6) Route pedal adjuster cable up and over right
side of pedals assembly and steering column bracket,
then down through hole in steering column bracket
as shown (Fig. 60). Attach end of cable to gear box.
(7) Place adjuster cable through loop on right side
of steering column bracket as shown (Fig. 60).
(8) Install booster input rod onto brake pedal pin
and install a NEW retaining clip.
(9) Connect wiring connector connecting vehicle
wiring harness to pedal wiring harness (Fig. 58).
(10) Connect routing clips retaining vehicle wiring
harness to pedal wiring harness (Fig. 58).
(11) Install brake lamp switch bracket on pedals
assembly. Tighten mounting nuts to 6 N´m (50 in.
lbs.) torque.
(12) Install dash seal silencer shell over steering
column intermediate shaft and fasten in place (Fig.
57).
(13) Install steering column onto lower mounting
studs with nuts started, then install column onto
upper mounting studs and install two upper mount-
ing nuts. Tighten upper, then lower mounting nuts to
12 N´m (105 in. lbs.) torque.
(14) Install column shaft coupling onto intermedi-
ate shaft and install pinch bolt. Make sure rounded
side of intermediate shaft is matched to the curva-
ture of the coupling. Tighten pinch bolt to 28 N´m
(250 in. lbs.) torque.
(15) Remove retainer holding steering wheel in
place on steering column.
(16) Attach shift cable to bracket on column.
(17) Connect shift cable end to shift lever mecha-
nism pin (Fig. 55).
(18) If equipped, connect PRNDL cable to end of
shift lever mechanism pin and column bracket (Fig.
55).(19) Connect column wiring harness connectors (as
equipped) to SKIM, BTSI solenoid, ignition switch,
multi-function switch, and clockspring.
(20) Install lower and upper steering column
shrouds. (Refer to 19 - STEERING/COLUMN/
LOWER SHROUD - INSTALLATION)
CAUTION: Do not reuse the original brake lamp
switch. The switch can only be adjusted once. That
is during initial installation of the switch. If the
switch is not adjusted properly or has been
removed for some service, a new switch must be
installed and adjusted.
(21) Install and adjust NEW brake lamp switch.
(Refer to 8 - ELECTRICAL/LAMPS/LIGHTING -
EXTERIOR/BRAKE LAMP SWITCH - INSTALLA-
TION)
(22) Install instrument panel lower left reinforce-
ment (Fig. 54).
(23) Attach hood release to lower left reinforce-
ment.
(24) Install knee blocker reinforcement plate (Fig.
53).
(25) Connect parking brake release link to release
handle.
(26) Install data link diagnostic connector to
mounting hole in reinforcement plate.
(27) Install lower steering column cover/knee
blocker (Fig. 53).
(28) Install throttle cable onto throttle body lever.
(Refer to 14 - FUEL SYSTEM/FUEL INJECTION/
THROTTLE CONTROL CABLE - INSTALLATION)
NOTE: When reconnecting the battery on a vehicle
that has had the airbag module removed, the fol-
lowing procedure should be used.
(29) Reconnect ground cable to negative post of
battery following special Diagnosis And Testing pro-
cedure. (Refer to 8 - ELECTRICAL/RESTRAINTS -
DIAGNOSIS AND TESTING)
(30) Test operation of adjustable pedals and all
functions that are steering column operated. If appli-
cable, reset radio and clock.
(31) Road test the vehicle to ensure proper opera-
tion of steering and brake systems.
RSBRAKES - BASE5-43
PEDALS - ADJUSTABLE (Continued)

(17) Inside vehicle, remove silencer panel under
instrument panel below steering column.
(18) Locate the booster input rod to brake pedal
connection under the instrument panel. Position a
small screwdriver between the center tang on the
power brake booster input rod to brake pedal pin
retaining clip (Fig. 68).
(19) 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 assem-
bling.
(20) Slide booster input rod off pedal pin.
(21) Remove the four nuts attaching power brake
booster to dash panel (Fig. 69).
(22) Slide power brake booster forward and remove
through engine compartment (Fig. 70).
CAUTION: Do not attempt to disassemble the power
brake vacuum booster. It is serviced ONLY as a
complete assembly.
REMOVAL - RHD
CAUTION: Reserve vacuum in power brake booster
must be pumped down (removed) before removing
master cylinder from booster. This is necessary to
prevent booster from sucking in any contamination
as master cylinder is removed. This can be done
simply by pumping the brake pedal, with the vehi-
cle'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 or 5 strokes).
(2) Remove negative battery cable terminal from
battery.
(3) Remove positive battery cable terminal from
battery.
(4) Remove battery thermal guard shield.
(5) Remove battery clamp, nut and battery from
the battery tray.
(6) If the vehicle is equipped with speed control,
disconnect the vacuum hose at the vacuum tank built
into the battery tray.
(7) Remove the two nuts and one bolt securing bat-
tery tray in place. Remove battery tray.
(8) If vehicle is equipped with speed control:
(a) Disconnect wiring harness connector from
the speed control servo.
(b) Remove the two servo mounting nuts.
Fig. 68 Vacuum Booster Input Rod Retaining Pin
1 - BRAKE PEDAL
2 - INPUT ROD
3 - SCREWDRIVER
4 - RETAINING CLIP
5 - BRAKE PEDAL PIN
Fig. 69 Booster Mounting
1 - DASH BRACKET
2 - POWER BRAKE BOOSTER
3 - BRAKE PEDAL ASSEMBLY
Fig. 70 Booster Removal/Installation
5 - 48 BRAKES - BASERS
POWER BRAKE BOOSTER (Continued)

CAUTION: Do not reuse the original brake lamp
switch. The switch can only be adjusted once. That
is during initial installation of the switch. If the
switch is not adjusted properly or has been
removed for some service, a new switch must be
installed and adjusted.
(5) Remove and replace the brake lamp switch
with a NEW switch. (Refer to 8 - ELECTRICAL/
LAMPS/LIGHTING - EXTERIOR/BRAKE LAMP
SWITCH - REMOVAL), (Refer to 8 - ELECTRICAL/
LAMPS/LIGHTING - EXTERIOR/BRAKE LAMP
SWITCH - INSTALLATION)
(6) Install the silencer panel below the steering
column.
(7) Connect vacuum hose to check valve on power
brake booster.
CAUTION: The master cylinder (and its rear seal) 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 when-
ever the master cylinder is removed from the vac-
uum booster.
CAUTION: When removing the vacuum seal from
the master cylinder do not use a sharp tool.
(8) Using a soft tool such as a trim stick, remove
the vacuum seal from the master cylinder mounting
flange.
(9) Install a NEW vacuum seal on rear mounting
flange of the master cylinder (Fig. 77).
(10) Position master cylinder on studs of booster,
aligning push rod on booster with master cylinder
piston.(11) Install the two nuts mounting the master cyl-
inder to the booster (Fig. 67). Tighten both mounting
nuts to a torque of 25 N´m (225 in. lbs.).
(12) Connect wiring harness connector to brake
fluid level switch in the master cylinder fluid reser-
voir (Fig. 66).
(13) Connect primary and secondary brake tubes
to ABS ICU or non-ABS junction block (Fig. 67).
Tighten the tube nuts to 17 N´m (145 in lbs.).
(14) Install wiper module (unit). (Refer to 8 -
ELECTRICAL/WIPERS/WASHERS/WIPER MOD-
ULE - INSTALLATION)
(15) If equipped with speed control, install speed
control servo and connect wiring connector. Tighten
the mounting nuts to a torque of 14 N´m (124 in.
lbs.).
(16) Install the battery tray. Install the two nuts
and one bolt attaching the battery tray to the vehicle.
Tighten the bolt and nuts to a torque of 14 N´m (124
in. lbs.).
(17) If vehicle is equipped with speed control, con-
nect the servo vacuum hose to the vacuum tank on
the battery tray.
(18) Install the air inlet resonator and hoses as an
assembly on the throttle body and air cleaner hous-
ing. Securely tighten hose clamp at air cleaner hous-
ing and throttle body.
(19) Secure the engine coolant filler neck to the
battery tray with its mounting screw.
(20) Install the battery, clamp and mounting nut.
(21) Install the positive battery cable on the bat-
tery.
(22) Install the negative battery cable on the bat-
tery.
(23) Install the battery thermal guard shield.
(24) Bleed the base brakes as necessary. (Refer to
5 - BRAKES - STANDARD PROCEDURE)
(25) Road test vehicle to ensure operation of the
brakes.
INSTALLATION - RHD
(1) Position power brake booster on dash panel
using the reverse procedure of its removal (Fig. 75).
(2) Below instrument panel, first install the two
upper nuts mounting the booster to the dash panel,
drawing it into place, then install the two lower
mounting nuts. Tighten the mounting nuts to a
torque of 29 N´m (250 in. lbs.).
(3) Using lubriplate, or equivalent, coat the sur-
face of the brake pedal torque shaft pin where it con-
tacts the booster input rod.
CAUTION: When installing the brake pedal torque
shaft pin on the power brake booster input rod, do
not re-use the old retaining clip.
Fig. 77 Vacuum Seal (Typical)
1 - MASTER CYLINDER ASSEMBLY
2 - VACUUM SEAL
RSBRAKES - BASE5-51
POWER BRAKE BOOSTER (Continued)

draining out of the master cylinder once the
brake tubes are removed from the HCU.
CAUTION: Do not apply a 12±volt power source to
any terminals of the 24-way CAB connector when
disconnected.
(8) Disconnect the wiring harness connector from
the speed control servo.
(9) Remove the speed control servo mounting nuts
and move the servo out of the way.
(10) Disconnect the 24±way connector from the
CAB. To disconnect the 24±way connector, grasp the
lock on the 24±way connector and pull it as far up as
possible. This will unlock the 24±way connector from
the socket on the CAB.
CAUTION: Before removing the brake tubes from
the HCU, the HCU must be thoroughly cleaned. This
must be done to prevent dirt particles from falling
into the ports of HCU or entering the brake tubes.
(11) Thoroughly clean all surfaces of the ICU and
brake tube nuts. Use only a solvent such as Mopart
Brake Parts Cleaner or equivalent to clean the ICU.
(12) Remove the brake tubes (4) from the outlet
ports on the HCU (Fig. 14).
(13) Remove the primary and secondary brake
tubes from the inlet ports on the HCU (Fig. 14).
(14) Center and prop the steering wheel.
(15) Remove the pinch bolt and disconnect the
steering shaft coupling.
(16) If equipped, remove the two clips securing
silencer to dash seal (Fig. 15). Remove silencer.
(17) Remove the three screws securing the dash
seal (Fig. 15). Remove seal.(18) Remove the 3 bolts attaching the ICU to its
mounting bracket (Fig. 16).
(19) Remove ICU from the vehicle through engine
compartment.
(20) If required, to separating the CAB from the
HCU, (Refer to 5 - BRAKES - ABS/HYDRAULIC/ME-
Fig. 14 Brake Tube Nuts At ICU
1 - PRIMARY BRAKE TUBE
2 - SECONDARY BRAKE TUBE
3 - CHASSIS BRAKE TUBES
Fig. 15 Lower Coupling And Dash Seal
1 - COUPLING
2 - DASH SEAL
3 - SILENCER
4 - MOUNTING SCREWS
5 - RETAINING CLIPS
6 - DASH
Fig. 16 ICU Mounting Bolts
1 - ICU MOUNTING BOLTS
2 - COUPLER
RSBRAKES - ABS5 - 103
ICU (INTEGRATED CONTROL UNIT) (Continued)

SPECIFICATIONS
ACCESSORY DRIVE BELT TENSION
ACCESSORY
DRIVE BELTTENSION
2.4L ENGINE
Air Conditioning
Compressor/
GeneratorDynamic Tensioner
Power
SteeringNew
Belt534 - 756 N
178 - 212 Hz
(120 - 170
lbs.)
Used
Belt*356 - 534 N
145 - 178 Hz
(80 - 120 lbs)
*Belt is considered used after 15 minutes of run-in
time
3.3/3.8L ENGINES
Air Conditioning
CompressorDynamic
Tensioner
Generator/Water
Pump/Power
Steering
TORQUE
DESCRIPTION N´m Ft.
Lbs.In.
Lbs.
Bolt, Accessory Drive Belt
Tensioner Assembly (3.3/3.8L)28 - 250
Engine Coolant Temperature
Sensor7-60
Bolt, Generator & A/C Compressor
Drive Belt Tensioner Assembly
(2.4L)54 40 -
Bolts, Coolant Outlet Connector/
Thermostat Housing28 - 250
Bolts, Water Pump 12 - 105
Bolts , Water Pump Inlet Tube
(2.4L)12 - 105
Bolts, Water Pump Inlet Tube
(3.3/3.8L)28 - 250
Bolts, Water Pump Pulley (3.3/3.8L) 28 - 250
Screws, Radiator to A/C Condenser 5 - 45
Screws, Radiator Fan 5 - 45
Nuts, Radiator Mounting (Upper
Bracket)12 - 105
Fig. 5 Cooling System Service Locations
1 - COOLANT RECOVERY CONTAINER 3 - ENGINE OIL LEVEL DIPSTICK
2 - ENGINE OIL FILL CAP 4 - RADIATOR PRESSURE CAP
RSCOOLING7-5
COOLING (Continued)

ACCESSORY DRIVE
TABLE OF CONTENTS
page page
DRIVE BELTS
DIAGNOSIS AND TESTING - ACCESSORY
DRIVE BELT..........................7
CLEANING.............................8
INSPECTION...........................8
DRIVE BELTS - 2.4L
STANDARD PROCEDURE - CHECKING
POWER STEERING BELT TENSION........8
REMOVAL.............................9
INSTALLATION..........................9ADJUSTMENTS........................10
BELT TENSIONER - 2.4L
REMOVAL.............................11
INSTALLATION.........................11
DRIVE BELTS - 3.3/3.8L
REMOVAL.............................11
INSTALLATION.........................12
BELT TENSIONER - 3.3/3.8L
REMOVAL.............................12
INSTALLATION.........................12
DRIVE BELTS
DIAGNOSIS AND TESTING - ACCESSORY DRIVE BELT
CONDITION POSSIBLE CAUSES CORRECTIONS
INSUFFICIENT ACCESSORY
OUTPUT DUE TO BELT SLIPPAGE1. Belt too loose 1. (a) Replace belt (auto-tensioned
belts)
(b) Adjust power steering belt
tension (4 cyl. engine)
2. Belt excessively glazed or worn 2. Replace and tighten as specified
BELT SQUEAL WHEN
ACCELERATING ENGINE1. Belts too loose 1. (a) Replace belt (auto-tensioned
belts)
(b) Adjust power steering belt
tension (4 cyl. engine)
2. Belt glazed 2. Replace belts
BELT SQUEAK AT IDLE 1. Belts too loose 1. (a) Replace belt (auto-tensioned
belts)
(b) Adjust power steering belt
tension (4 cyl. engine)
2. Dirt or paint imbedded in belt 2. Replace belt
3. Non-uniform belt 3. Replace belt
4. Misaligned pulleys 4. Align accessories
5. Non-uniform groove or eccentric
pulley5. Replace pulley
RSACCESSORY DRIVE7-7