2003 CHRYSLER CARAVAN tire type

(3) Reconnect the power seat wire harness connec-
tor to the power seat switch connector receptacle.
(4) Position the outboard seat cushion side shield
onto the seat cushion frame
(5) Install and tighten the screws that secure the
outboard seat cushion side shield to the seat cushion
frame. Tighten the screws to 1.5 N´m (14 in. lbs.).
(6) Install the switch knobs on the switch control
levers, if equipped.
(7) Reconnect the battery negative cable.
DRIVER POWER SEAT TRACK
DESCRIPTION
The eight-way driver side power seat option
includes a electrically operated power seat track
located under the driver side front seat. The front
power seat track on the driver side of the vehicle also
provides the mounting location for the Memory Seat/
Mirror Module (MSMM). The power seat circuit
breakers are mounted on the rear of the driver side
power seat track, just behind the seat rear trim
panel. The lower half of the power seat track is
secured to the floor panel via four studs and nuts
that must be accessed from the underside of the vehi-
cle. Four bolts secure the bottom of the seat cushion
pan to the upper half of the power seat track unit.
Four additional bolts secure the seat back frame to
the power seat track unit.
The power seat track unit includes four reversible
electric motors that are secured to the upper half of
the track unit. Each motor moves the seat adjuster
through a combination of worm-drive gearboxes and
screw-type drive units. Each of the four power seat
track motors used on models equipped with the
optional memory system incorporates a position
potentiometer integral to the motor assembly, which
electronically monitors the motor position. This
enables the memory system to function by referenc-
ing the motor positions programmed into the memory
seat/mirror module.
The front and rear of the seat are operated by two
separate vertical adjustment motors. These motors
can be operated independently of each other, tilting
the entire seat assembly forward or rearward; or,
they can be operated in unison by selecting the
proper power seat switch functions, which will raise
or lower the entire seat assembly. A third motor is
the horizontal adjustment motor, which moves the
seat track in the forward and rearward directions.
The forth motor is the recliner adjustment motor,
which moves the seat back in the forward and rear-
ward directions.
The power seat track unit cannot be repaired, and
is serviced only as a complete unit. If any componentin this unit is faulty or damaged, the entire power
seat track unit must be replaced.
OPERATION
When the driver side power seat switch control
knob or knobs are actuated, a battery feed and a
ground path are applied through the switch contacts
to the power seat track or recliner adjuster motor.
The selected adjuster motor operates to move the
seat track or recliner through its drive unit in the
selected direction until the switch is released, or
until the travel limit of the adjuster is reached.
When the switch is moved in the opposite direction,
the battery feed and ground path to the motor are
reversed through the switch contacts. This causes the
adjuster motor to run in the opposite direction.
No power seat switch should be held applied in any
direction after the adjuster has reached its travel
limit. The power seat adjuster motors each contain a
self-resetting circuit breaker to protect them from
overload. However, consecutive or frequent resetting
of the circuit breaker must not be allowed to con-
tinue, or the motor may be damaged.
See the owner's manual in the vehicle glove box for
more information on the power seat switch functions
and the seat adjusting procedures.
DIAGNOSIS AND TESTING - DRIVER POWER
SEAT TRACK
WARNING: SOME VEHICLES ARE EQUIPPED WITH
SEATBACK MOUNTED AIRBAGS. BEFORE
ATTEMPTING TO DIAGNOSE OR SERVICE ANY
SEAT OR POWER SEAT SYSTEM COMPONENT
YOU MUST FIRST DISCONNECT AND ISOLATE THE
BATTERY NEGATIVE CABLE. THEN WAIT TWO MIN-
UTES FOR THE SYSTEM CAPACITOR TO DIS-
CHARGE BEFORE FURTHER SYSTEM SERVICE.
THIS IS THE ONLY SURE WAY TO DISABLE THE
AIRBAG SYSTEM. FAILURE TO DO SO COULD
RESULT IN ACCIDENTAL AIRBAG DEPLOYMENT
AND POSSIBLE PERSONAL INJURY.
Actuate the driver side power seat switch to move
all three power seat track adjusters in each direction.
The power seat track adjusters should move in each
of the selected directions. If a power seat track
adjuster fails to operate in only one direction, move
the adjuster a short distance in the opposite direction
and test again to be certain that the adjuster is not
at its travel limit. If the power seat track adjuster
still fails to operate in only one direction, refer to
Diagnosis and Testing Power Seat Switchin this
section. If the power seat track adjuster fails to oper-
ate in more than one direction, perform the following
tests. For complete circuit diagrams, refer toWiring
Diagrams.
8N - 58 POWER SEAT SYSTEMRS
PASSENGER SEAT SWITCH (Continued)
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WIRE
STANDARD PROCEDURE - WIRE SPLICING
When splicing a wire, it is important that the cor-
rect gage be used as shown in the wiring diagrams.
(1) Remove one-half (1/2) inch of insulation from
each wire that needs to be spliced.
(2) Place a piece of adhesive lined heat shrink tub-
ing on one side of the wire. Make sure the tubing will
be long enough to cover and seal the entire repair
area.
(3) Place the strands of wire overlapping each
other inside of the splice clip (Fig. 14).
(4) Using crimping tool, Mopar p/n 05019912AA,
crimp the splice clip and wires together (Fig. 15).(5) Solder the connection together using rosin core
type solder only (Fig. 16).
CAUTION: DO NOT USE ACID CORE SOLDER.
(6) Center the heat shrink tubing over the joint
and heat using a heat gun. Heat the joint until the
tubing is tightly sealed and sealant comes out of both
ends of the tubing (Fig. 17).
Fig. 14 SPLICE BAND
1 - SPLICE BAND
Fig. 15 CRIMPING TOOL
1 - CRIMPING TOOL
Fig. 16 SOLDER SPLICE
1 - SOLDER
2 - SPLICE BAND
3 - SOLDERING IRON
Fig. 17 HEAT SHRINK TUBE
1 - SEALANT
2 - HEAT SHRINK TUBE
RS8W-01 WIRING DIAGRAM INFORMATION8W-01-15
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REMOVAL - ENGINE ASSEMBLY
(1) Perform fuel pressure release procedure (Refer
to 14 - FUEL SYSTEM/FUEL DELIVERY - STAN-
DARD PROCEDURE)
(2) Disconnect battery negative cable.
(3) Remove air cleaner housing and inlet tube.
(4) Disconnect the fuel line from fuel rail. (Refer to
14 - FUEL SYSTEM/FUEL DELIVERY/FUEL LINES
- STANDARD PROCEDURE)
(5) Disconnect all vacuum hoses.
(6) Drain cooling system. (Refer to 7 - COOLING -
STANDARD PROCEDURE)
(7) Remove radiator fans. (Refer to 7 - COOLING/
ENGINE/RADIATOR FAN - REMOVAL)
(8) Remove radiator upper and lower hoses.
NOTE: When the transaxle cooler lines are removed
from the rolled-groove type fittings at the transaxle,
damage to the inner wall of the hose will occur. To
prevent prevent potential leakage, the cooler hoses
must be cut off flush at the transaxle fitting, and a
service cooler hose splice kit must be installed
upon reassembly.(9) Using a blade or suitable hose cutter, cut trans-
axle oil cooler lines off flush with fittings. Plug cooler
lines and fittings to prevent debris from entering
transaxle or cooler circuit. A service splice kit will be
installed upon reassembly.
(10) Disconnect transmission shift linkage and
electrical connectors.
(11) Disconnect throttle body linkage.
(12) Disconnect engine wiring harness.
(13) Disconnect heater hoses from heater (Fig. 5).
(14) Discharge air conditioning system. (Refer to
24 - HEATING & AIR CONDITIONING/PLUMBING
- STANDARD PROCEDURE)
(15) Hoist vehicle and remove front wheels and
tires.
(16) Remove accessory drive belt splash shield.
(17) Remove accessory drive belts. (Refer to 7 -
COOLING/ACCESSORY DRIVE/DRIVE BELTS -
REMOVAL)
Fig. 5 HEATER HOSES - 2.4L
1 - HEATER HOSES TO HEATER 3 - HEATER HOSE TO ENGINE - SUPPLY AND RETURN
2 - BOLT - HEATER TUBE SUPPORT
RSENGINE 2.4L9-13
ENGINE 2.4L (Continued)
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Calibrate the tester according to the manufactur-
er's instructions. The shop air source for testing
should maintain 483 kPa (70 psi) minimum, 1,379
kPa (200 psi) maximum, with 552 kPa (80 psi) rec-
ommended.
Perform the test procedures on each cylinder
according to the tester manufacturer's instructions.
While testing, listen for pressurized air escaping
through the throttle body, tailpipe and oil filler cap
opening. Check for bubbles in the coolant.
All gauge pressure indications should be equal,
with no more than 25% leakage per cylinder.
FOR EXAMPLE:At 552 kPa (80 psi) input pres-
sure, a minimum of 414 kPa (60 psi) should be main-
tained in the cylinder.
STANDARD PROCEDURE
STANDARD PROCEDURE - MEASURING
BEARING CLEARANCE USING PLASTIGAGE
Engine crankshaft bearing clearances can be deter-
mined by use of Plastigage or equivalent. The follow-
ing is the recommended procedure for the use of
Plastigage:
(1) Remove oil film from surface to be checked.
Plastigage is soluble in oil.
(2) Place a piece of Plastigage across the entire
width of the bearing shell in the cap approximately
6.35 mm (1/4 in.) off center and away from the oil
holes (Fig. 3). (In addition, suspected areas can be
checked by placing the Plastigage in the suspected
area). Torque the bearing cap bolts of the bearing
being checked to the proper specifications.
(3) Remove the bearing cap and compare the
width of the flattened Plastigage with the metric
scale provided on the package. Locate the band clos-est to the same width. This band shows the amount
of clearance in thousandths of a millimeter. Differ-
ences in readings between the ends indicate the
amount of taper present. Record all readings taken.
Compare clearance measurements to specs found in
engine specifications (Refer to 9 - ENGINE - SPECI-
FICATIONS).Plastigage generally is accompa-
nied by two scales. One scale is in inches, the
other is a metric scale.
NOTE: Plastigage is available in a variety of clear-
ance ranges. Use the most appropriate range for
the specifications you are checking.
(4) Install the proper crankshaft bearings to
achieve the specified bearing clearances.
STANDARD PROCEDURE - FORM-IN-PLACE
GASKETS AND SEALERS
There are numerous places where form-in-place
gaskets are used on the engine. Care must be taken
when applying form-in-place gaskets to assure
obtaining the desired results.Do not use form-in-
place gasket material unless specified.Bead size,
continuity, and location are of great importance. Too
thin a bead can result in leakage while too much can
result in spill-over which can break off and obstruct
fluid feed lines. A continuous bead of the proper
width is essential to obtain a leak-free gasket.
There are numerous types of form-in-place gasket
materials that are used in the engine area. Mopart
Engine RTV GEN II, MopartATF-RTV, and Mopart
Gasket Maker gasket materials, each have different
properties and can not be used in place of the other.
MOPARtENGINE RTV GEN IIis used to seal
components exposed to engine oil. This material is a
specially designed black silicone rubber RTV that
retains adhesion and sealing properties when
exposed to engine oil. Moisture in the air causes the
material to cure. This material is available in three
ounce tubes and has a shelf life of one year. After one
year this material will not properly cure. Always
inspect the package for the expiration date before
use.
MOPARtATF RTVis a specifically designed
black silicone rubber RTV that retains adhesion and
sealing properties to seal components exposed to
automatic transmission fluid, engine coolants, and
moisture. This material is available in three ounce
tubes and has a shelf life of one year. After one year
this material will not properly cure. Always inspect
the package for the expiration date before use.
MOPARtGASKET MAKERis an anaerobic type
gasket material. The material cures in the absence of
air when squeezed between two metallic surfaces. It
will not cure if left in the uncovered tube. The
Fig. 3 Plastigage Placed in Lower ShellÐTypical
1 - PLASTIGAGE
9 - 84 ENGINE 3.3/3.8LRS
ENGINE 3.3/3.8L (Continued)
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CONDITION POSSIBLE CAUSES CORRECTION
STEERING WHEEL, DASH
OR VEHICLE VIBRATES
DURING LOW SPEED OR
STANDSTILL STEERING
MANEUVERS.1. Air in the fluid of the power
steering system.1. Bleed air from system following the
power steering pump initial operation
service procedure.*
2. Tires not properly inflated. 2. Inflate tires to the specified pressure.
3. Excessive engine vibration. 3. Ensure that the engine is tuned properly.
4. Loose tie rod end jam nut. 4. Tighten the inner to outer tie rod jam nut
to the specified torque.
5.Overcharged air conditioning
system.5.Check air conditioning pump head
pressure and correct as necessary.
6. Grounded engine mount. 6. Repair as necessary.
7. Loose outer tie rod. 7. Replace outer tie rod.
STEERING CATCHES,
SURGES OR STICKS IN
CERTAIN POSITIONS OR
IS DIFFICULT TO TURN.
***1. Low power steering fluid level. 1. Fill power steering fluid reservoir to
specified level and check for leaks.
2. Tires not inflated to specified
pressure.2. Inflate tires to the specified pressure.
3. Lack of lubrication in front lower
control arm ball joints.3. Lubricate ball joints if ball joints are not a
lubricated-for-life type ball joint. If ball joint
is a lubricated-for-life ball joint, replace ball
joint.
4. Worn or binding lower control arm
ball joint.4. Replace lower control arm ball joint.
5. Lack of lubrication in steering gear
outer tie rod ends.5. Lubricate tie rod ends if they are not a
lubricated-for-life type. If tie rod end is a
lubricated-for-life type, replace tie rod end.
6. Loose power steering pump drive
belt.6. Tighten the power steering pump drive
belt to specifications or replace automatic
tensioner where applicable. If drive belt is
worn or glazed, replace belt.
7. Faulty power steering pump
(Perform Power Steering Flow and
Pressure Test).7. Replace power steering pump.
8. Faulty power steering gear
(Perform Power Steering Flow and
Pressure Test).8. Replace power steering gear.
9. Excessive friction in steering
column or intermediate shaft/coupler.9. Isolate and correct condition.
10. Excessive friction in power
steering gear.10. Replace power steering gear.
11. Worn or binding seat and bearing
in front strut assembly.11. Replace seat and bearing in front strut
assembly.
19 - 6 STEERINGRS
STEERING (Continued)
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CONDITION POSSIBLE CAUSES CORRECTION
STEERING WHEEL DOES
NOT RETURN TO
CENTER POSITION.1. Tires not inflated properly. 1. Inflate tires to specified pressure.
2. Improper front wheel alignment. 2. Check and adjust wheel alignment as
necessary.
3. Lack of lubrication causing binding
in front lower control arm ball joints.3. Lubricate ball joints if ball joints are not a
lubricated for life type of ball joint, then
inspect ball joint for wear, replace lower
control arm as necessary. If ball joint is a
lubricated for life ball joint, replace lower
control arm ball joint.
4. Steering column coupling joints
misaligned.4. Realign steering column coupling joints.
5. Steering wheel rubbing.** 5. Adjust steering column shrouds to
eliminate rubbing condition.
6. Damaged, mispositioned or
unlubricated steering column coupler
to dash seal.**6. Replace, reposition, or lubricate dash
seal.
7. Binding mount bearing in front
strut assembly.7. Replace mount bearing in front strut
assembly.
8. Binding shaft bearing in steering
column.8. Replace the steering column.
9. Excessive friction in steering
column coupling.9. Replace steering column coupling.
10. Excessive friction in power
steering gear.10. Replace power steering gear.
EXCESSIVE STEERING
WHEEL KICKBACK OR
TOO MUCH STEERING
WHEEL FREE PLAY.1. Air in the fluid of the power
steering system.1. Bleed air from system following the the
power steering pump initial operation
service procedure.*
2. Power steering gear loose on
cradle/crossmember.2. Inspect power steering gear mounting
bolts. Replace as necessary. Tighten to the
specified torque.
3. Steering column coupling or
intermediate shaft worn, broken or
loose.3. Replace steering column coupling or
intermediate shaft.
4. Free play in steering column. 4. Check all components of the steering
column and repair or replace as required.
5. Worn lower control arm ball joints. 5. Replace lower control arm ball joints as
required.
6. Loose steering knuckle-to-ball joint
stud pinch bolt.6. Inspect pinch bolt, replace as necessary,
and tighten to specified torque.
7.
Front wheel bearing loose or worn.7. Replace hub and bearing as necessary.
8. Loose outer tie rod end. 8. Replace outer tie rod end that has
excessive free play.
9. Loose inner tie rod. 9. Replace power steering gear.
10. Defective steering gear rotary
valve.10. Replace power steering gear.
RSSTEERING19-7
STEERING (Continued)
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(11) Remove power steering fluid return hose with
cooler from vehicle.
INSTALLATION
INSTALLATION - 2.4L ENGINE
(1) Remove any used O-rings from ends of power
steering hose.
(2) Using a lint free towel, wipe clean hose ends,
power steering pump fitting and steering gear port.
(3) Install new O-ring on power steering gear end
of return hose. Lubricate O-ring using clean power
steering fluid.
CAUTION: Use care not to bend tube ends of the
power steering hoses when installing. Leaks and
restrictions may occur.
CAUTION: If a new return hose is being installed
and it does not have an insulating heat sleeve
installed, the heat shield from the original hose
must be transferred before hose installation.
(4) Route hose along rear of cradle crossmember
and start gear end of hose into gear port. Do not
tighten hose tube nut at this time.
(5) Attach hose to suspension cradle crossmember
using two routing clamps and bolts (Fig. 19). Tighten
clamp bolts to 23 N´m (200 in. lbs.) torque.
(6) Tighten return hose tube nut at power steering
gear port to 31 N´m (275 in. lbs.) torque.(7) Install the power steering fluid cooler on the
cradle crossmember reinforcement (Fig. 23). Install
the mounting bolts and tighten to 11 N´m (100 in.
lbs.).
CAUTION: Power steering fluid hoses must remain
away from the exhaust system and must not come
in contact with any unfriendly surfaces on the vehi-
cle.
(8) Route pump end of hose over cradle crossmem-
ber toward pump avoiding tight bends or kinking.
(9) Install return hose onto power steering pump
return fitting and secure with hose clamp (Fig. 19).
Tighten the screw-type clamp to a torque of 2 N´m
(18 in. lbs.).
CAUTION: To prevent overheating of power steering
fluid return hose, protective heat shield sleeve must
cover entire rubber hose.
(10) Slide insulating heat shield up over the clamp
on the return hose and tie-strap it in place.
(11) Install front emissions vapor canister. (Refer
to 25 - EMISSIONS CONTROL/EVAPORATIVE
EMISSIONS/VAPOR CANISTER - INSTALLATION)
(12) Lower vehicle.
(13) Fill and bleed the power steering system
using the Power Steering Pump Initial Operation
Procedure. (Refer to 19 - STEERING/PUMP - STAN-
DARD PROCEDURE)
(14) Inspect system for leaks.
INSTALLATION - 3.3L/3.8L ENGINE
(1) Remove any used O-rings from ends of power
steering hose.
(2) Using a lint free towel, wipe clean hose ends
and power steering gear hose port.
(3) Install a new O-ring on gear port end of power
steering fluid hose. Lubricate O-ring using clean
power steering fluid.
CAUTION: Use care not to bend tube ends of the
power steering hoses when installing. Leaks and
restrictions may occur.
CAUTION: Power steering fluid hoses must remain
away from the exhaust system and must not come
in contact with any unfriendly surfaces on the vehi-
cle.
(4) Route hose (with cooler attached) up toward
reservoir avoiding tight bends or kinking.
(5) Start steering gear end of hose into gear port.
Do not tighten hose tube nut at this time.
Fig. 23 POWER STEERING COOLER
1 - CRADLE CROSSMEMBER REINFORCEMENT
2 - POWER STEERING COOLER
RSPUMP19-49
HOSE - POWER STEERING RETURN (Continued)
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If runout is still excessive, perform the following:
²If the new high spot is within 102 mm (4.0 inch)
of the first high spot on the tire, replace the tire.
²If the new high spot is within 102 mm (4.0 inch)
of the first high spot on the wheel, the wheel may be
out of specification. Refer to Wheel Runout above.²If the new high spot is NOT within 102 mm (4.0
inch) of either high spot, draw an arrow on the tread
from new high spot toward the original (Fig. 7).
Break down the tire and remount it 90 degrees on
rim in that direction, then re-measure runout. This
will normally reduce the runout to an acceptable
amount.
(6) Once back together, road test the vehicle for at
least 5 miles, following the format described in Road
Test. If vibration persists, and all components tested
are within specification, the tires may have an exces-
sive radial force condition. Radial force variation can
only be checked as indicated below. If this equipment
is not available, consult with the tire manufacturer.
RADIAL FORCE VARIATION
Radial Force Variation can be checked using the
Hunter GSP 9700 Vibration Control System (Wheel
Balancer) or equivalent, if available. This type of
equipment helps to correct ride disturbances by
reducing the radial force variation of an assembly
through re-indexing of the tire to wheel.
The equipment manufacturer or DaimlerChrysler
Corporation may supply reference values as guide-
lines. Radial force measurements above the reference
value may not always result in a ride disturbance,
nor do they automatically mean the assembly compo-
nents are out of specification. Do not replace compo-
nents based on radial force values alone. Balancing,
runout diagnosis, re-indexing, and subjective road
Fig. 5 Checking Lateral Runout Of Wheel
1 - MOUNTING CONE
2 - SPINDLE SHAFT
3 - WING NUT
4 - PLASTIC CUP
5 - DIAL INDICATOR
6 - WHEEL
7 - DIAL INDICATOR
Fig. 6 Remount Tire 180 Degrees
1 - VALVE STEM
2 - REFERENCE MARK
Fig. 7 Remount Tire 90 Degrees In Direction of
Arrow
1 - 2ND HIGH SPOT ON TIRE
2 - 1ST HIGH SPOT ON TIRE
22 - 4 TIRES/WHEELSRS
TIRES/WHEELS (Continued)
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