air condition CHRYSLER CARAVAN 2005 Service Manual

OPERATION
The signal represents throttle blade position. As
the position of the throttle blade changes, the resis-
tance of the TPS changes.
The PCM supplies approximately 5 volts to the
TPS. The TPS output voltage (input signal to the
powertrain control module) represents throttle blade
position. The TPS output voltage to the PCM varies
from approximately 0.6 volt at minimum throttle
opening (idle) to a maximum of 4.5 volts at wide open
throttle.Along with inputs from other sensors, the PCM
uses the TPS input to determine current engine oper-
ating conditions. The PCM also adjusts fuel injector
pulse width and ignition timing based on these
inputs.
REMOVAL - 3.3/3.8L
(1) Disconnect the negative battery cable.
(2) Remove the electrical connector from the Inlet
Air Temperature sensor.
(3) Remove the air cleaner box lid. Remove hose
from throttle body.
(4) Disconnect the electrical connector at TPS.
(5) Disconnect the electrical connector at IAC.
(6) Remove the throttle and speed control cables
from throttle body.
(7) Remove 3 mounting bolts from throttle body.
(8) Remove throttle body.
(9) Disconnect the purge vacuum line from the
throttle body.
(10) Remove TPS from throttle body.
INSTALLATION - 3.3/3.8L
(1) Install TPS to throttle body.
(2) Disconnect the purge vacuum line from the
throttle body.
(3) Install throttle body.
(4) Install 3 mounting bolts from throttle body.
Tighten bolts.
(5) Install the throttle and speed control cables to
throttle body.
(6) Connect the electrical connector at TPS.
(7) Connect the electrical connector at IAC.
(8) Install the air cleaner box lid. Install hose to
throttle body.
(9) Install the electrical connector to the Inlet Air
Temperature sensor.
(10) Connect the negative battery cable.
Fig. 31 Throttle Position SensorÐ3.3/3.8L Engine
1 - Idle Air Control Valve
2 - Throttle Position Sensor
RSFUEL INJECTION14-41
THROTTLE POSITION SENSOR (Continued)

(6) Start engine and let idle just long enough to
circulate power steering fluid through the analyzer
and hoses. Shut off engine.
(7) Check power steering fluid level and add fluid
as necessary. Start engine again and let idle until the
air is out of the fluid.
(8) Gauge should read below 300 psi (2068 kPa). If
above, inspect the hoses for restrictions and repair as
necessary. The initial pressure should be in the range
of 100-275 psi (689-1896 kPa) depending on fluid
temperature. The flow meter should read above 1.5
GPM.
CAUTION: The following test procedure involves
testing maximum pump pressure output and flow
control valve operation. Do not leave valve closed
for more than four seconds as the pump could be
damaged.
NOTE: Power steering pump maximum pressure for
2.4L engines is 1,200 ± 1,350 psi (8,274 ± 9,308
kPa). Power steering pump maximum pressure for
all other engines is 1,400 ± 1,500 psi (9,653 ± 10,342
kPa).
(9) Close analyzer valve fully three times and
record highest pressure indicated each time. All three
readings must be within specifications. If any of the
three power steering pump pressures are above orbelow specifications, replace pump. (Refer to 19 -
STEERING/PUMP - REMOVAL)
CAUTION: Do not force the steering to operate
against the stops for more than 4 seconds at a time
because pump damage can result.
(10) Once the pump has been verified as working
correctly, completely open the valve on the Power
Steering Analyzer. Turn the steering wheel to the
extreme left until the stop in the steering gear is
met. Hold it there for 2±4 seconds, then release it.
Now turn the steering wheel to the right until the
right stop is met. Hold it there for 2±4 seconds, then
release it. Record the stabilized pressure at each
position. Compare the recorded readings to the spec-
ifications. If the output pressures are not within 100
psi (689 kPa) of one another against either stop or
are below specifications, the steering gear is leaking
internally and must be replaced. (Refer to 19 -
STEERING/GEAR - REMOVAL)
DIAGNOSIS AND TESTING - STEERING
SYSTEM DIAGNOSIS CHARTS
NOTE: There are three diagnosis charts following
that cover POWER STEERING NOISE, STEERING
WHEEL FEEL, and POWER STEERING FLUID.
POWER STEERING NOISE
CONDITION POSSIBLE CAUSES CORRECTION
OBJECTIONABLE HISS
OR WHISTLE*1. Damaged or mispositioned
steering column shaft/coupling dash
panel seal.1. Reposition or replace steering
column shaft/coupling dash panel seal.
2. Mis-routed power steering hose. 2. Check routing of power steering
hoses. Ensure hoses do not come in
unwanted contact with other
components and objects.
3. Noisy valve in power steering
gear.3. Replace power steering gear.
RATTLE OR EXCESSIVE
CLUNK**1. Power steering gear loose on front
suspension crossmember.1. Inspect power steering gear
mounting bolts. Replace as necessary.
Tighten to the specified torque.
2. Front suspension crossmember
mounting fasteners loose at frame.2. Tighten the front suspension
crossmember mounting fasteners to the
specified torque.
3. Loose tie rod (outer or inner). 3. Check tie rod pivot points for wear.
Replace worn/loose parts as required.
RSSTEERING19-3
STEERING (Continued)

CONDITION POSSIBLE CAUSES CORRECTION
4. Loose lower control arm mounting
bolts at front suspension
crossmember.4. Tighten control arm mounting bolts to
the specified torques.
5. Lower control arm pivot bushing
worn.5. Replace lower control arm pivot
bushing.
6. Loose strut assembly mounting
fasteners at tower or knuckle.6. Tighten strut assembly fasteners to
the specified torque.
7. Power steering fluid hose touching
the body of the vehicle.7. Adjust hose to proper position by
loosening, repositioning, and tightening
attachments to specified torque. Do not
bend tubing.
8. Damaged front suspension
crossmember.8. Replace front suspension
crossmember.
9. Stabilizer bar link ball joints worn. 9. Replace stabilizer bar link.
10. Lug nuts loose. 10. Tighten lug nuts to specifications.
11. Excessive Wheel bearing
free-play.11. Verify correct halfshaft hub nut
torque. Replace hub and bearing if
torque is okay.
12. Internal power steering gear
noise.12. Replace power steering gear.
POPPING NOISE 1. Worn outer tie rod. 1. Check ball joint for free-play;
Replace outer tie rod.
2. Loose inner tie rod. 2. Replace power steering gear.
CHIRP OR SQUEAL
(POWER STEERING
PUMP)1. Loose power steering pump drive
belt.1. Check and adjust power steering
pump drive belt to specifications or
replace automatic tensioner where
applicable. Replace belt if worn or
glazed.
2. Malfuctioning belt auto-tensioner 2. Replace belt auto-tensioner.
WHINE, GROWL, MOAN
OR GROAN (POWER
STEERING PUMP)***1. Low fluid level. 1. Fill power steering fluid reservoir to
proper level and check for leaks (make
sure all air is bled from the system
fluid).
2. Power steering hose touching
vehicle body or frame.2. Adjust hose to proper position by
loosening, repositioning, and tightening
fitting to specified torque. Do not bend
tubing. Replace hose if damaged.
3. Extremely low ambient
temperature.3. Some noise can be expected, but will
go away as vehicle warms. Replace
pump if noise is excessive.
4. Extreme wear of power steering
pump internal components.4. Replace power steering pump and
flush system as necessary.
19 - 4 STEERINGRS
STEERING (Continued)

CONDITION POSSIBLE CAUSES CORRECTION
SUCKING AIR SOUND 1. Loose clamp on power steering
fluid return hose.1. Tighten or replace hose clamp.
2. Missing O-Ring on power steering
hose connection.2. Inspect connection and replace
O-Ring as required.
3. Low power steering fluid level. 3. Fill power steering fluid reservoir to
proper level and check for leaks.
4. Loose clamp on fluid supply hose. 4. Tighten or replace hose clamp.
SQUEAK OR RUBBING
SOUND1. Steering column shroud rubbing. 1. Realign shrouds as necessary.
2. Steering column shaft rubbing. 2. Move or realign item rubbing shaft.
3. Clockspring noisy. 3. Remove clockspring. Reinstall wheel.
If noise is gone, replace clockspring.
4. Seal lubrication inadequate. 4. Lube seal (if external).
5. Steering gear internally noisy. 5. Replace steering gear (if no other
cause can be found).
SCRUBBING OR
KNOCKING NOISE.1. Incorrect tire or wheel size. 1. Replace incorrect size tire or wheel
with size used as original equipment.
2. Interference between steering
gear and other vehicle components.2. Check for bent or misaligned
components and correct as necessary.
3. Steering gear internal stops worn
excessively allowing tires to be
steered excessively far.3. Replace steering gear.
* NOTE: There is some noise in all power steering
systems. One of the most common is a hissing
sound evident when turning the steering wheel
when at a standstill or when parking and the steer-
ing wheel is at the end of its travel. Hiss is a very
high frequency noise similar to that experienced
while slowly closing a water tap. The noise is
present in every valve and results when high veloc-
ity fluid passes valve orifice edges. There is no
relationship between this noise and the perfor-
mance of the steering system.** NOTE: A light clunk may be felt or heard during
steering wheel reversal while vehicle is stationary.
This results from internal steering gear rack move-
ment at the bushings and in no way affects the per-
formance of the steering system. This movement
may be felt in the steering components during
steering wheel reversal.
*** NOTE: Power steering pump growl/moan/groan
results from the development of high pressure fluid
flow. Normally this noise level should not be high
enough to be objectionable.
RSSTEERING19-5
STEERING (Continued)

STEERING WHEEL FEEL
CONDITION POSSIBLE CAUSES CORRECTION
STEERING WHEEL/
COLUMN CLICKING,
CLUNKING OR RATTLING.1. Loose steering coupling pinch
bolt.1. Replace pinch bolt and torque to
specifications.
2. Steering column bearings. 2. Replace steering column.
3. Excessive intermediate shaft
coupling free-play.3. Replace intermediate shaft.
STEERING WHEEL HAS
FORE AND AFT
LOOSENESS.1. Steering wheel retaining nut not
properly tightened and torqued.1. Tighten the steering wheel retaining nut
to its specified torque.
2. Steering column lower bearing
spring retainer slipped on steering
column shaft.2. Replace steering column.
3. Loose steering column to
instrument panel fasteners.3. Tighten fasteners to specified torque.
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.
19 - 6 STEERINGRS
STEERING (Continued)

CONDITION POSSIBLE CAUSES CORRECTION
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.
* NOTE: Steering shudder can be expected in new
vehicles and vehicles with recent steering system
repairs. Shudder should dissipate after the vehicle
has been driven several weeks.
** NOTE: To evaluate this condition, it may be nec-
essary to disconnect the coupling at the base of the
steering column. Turn the steering wheel and feel or
listen for internal rubbing in steering column. To
avoid damaging the column clockspring, note the
following. Before disconnecting coupling, place
tires in the straight-ahead position and center steer-
ing wheel. Once disconnected, DO NOT rotatesteering wheel more than one revolution in either
direction and place steering wheel in original loca-
tion before reconnecting coupling. If this position is
lost, the steering column clockspring must be
recentered following the procedure found within the
procedure for steering column installation in the
steering column section.
*** NOTE: Increased low speed or stationary steer-
ing effort can be expected if the steering fluid is at
a high temperature. High fluid temperature usually
results from high engine rpm due to trailer towing,
ascending grades, or racing the engine for pro-
longed periods of time.
POWER STEERING FLUID
CONDITION POSSIBLE CAUSES CORRECTION
LOW FLUID LEVEL WITH
VISIBLE LEAK.1. Loose power steering hose
fittings.1. Tighten the fitting to its specified torque.
2. Damaged or missing fitting seal,
gasket, or O-ring.2. Replace as necessary.
3. Power steering component
leaking.3. Repair or replace the leaking component
as required.
19 - 8 STEERINGRS
STEERING (Continued)

CONDITION POSSIBLE CAUSES CORRECTION
AERATED FLUID.* 1. Low fluid level. 1. Fill power steering fluid reservoir to
proper level.
2. Air leak at supply hose, power
steering fluid reservoir or pump.2. Inspect for proper sealing. Repair as
necessary.
3. Cracked power steering pump
housing.3. Replace the power steering pump.
RESERVOIR FLUID
OVERFLOW AND FLUID
THAT IS MILKY IN COLOR1. Water contamination of power
steering fluid.1. Drain the power steering fluid from the
system. Flush the system with fresh clean
power steering fluid, drain, then refill to the
proper level.
* NOTE: Extremely cold temperatures may cause
power steering fluid aeration. Aeration should sub-
side as fluid warms.
SPECIFICATIONS
POWER STEERING FASTENER TORQUE
DESCRIPTION TORQUE
Power Steering Pump:
Flow Control Valve
Pressure Fitting75 N´m (55 ft. lbs.)
Mounting Bolts 54 N´m (40 ft. lbs.)
Rear Bracket To Engine
Mounting Bolts54 N´m (40 ft. lbs.)
Steering Gear:
Mounting Bolt - Size-M14 183 N´m (135 ft. lbs.)
Mounting Bolts -
Size-M1295 N´m (70 ft. lbs.)
Tie Rod Steering Knuckle
Nut75 N´m (55 ft. lbs.)
Tie Rod Jam Nut 75 N´m (55 ft. lbs.)
Coupling Pinch Bolt 28 N´m (250 in. lbs.)
Power Steering Fluid
Hoses:
Hose Tube Nuts 31 N´m (275 in. lbs.)
Routing Bracket Bolts 23 N´m (200 in. lbs.)
SPECIAL TOOLS
POWER STEERING
Power Steering Analyzer 6815
Adapters, Power Steering Analyzer 6893
Hose, Power Steering Analyzer 6959
RSSTEERING19-9
STEERING (Continued)

WARNING: THE AIR BAG SYSTEM IS A SENSITIVE,
COMPLEX ELECTRO-MECHANICAL UNIT. BEFORE
ATTEMPTING TO DIAGNOSE, REMOVE OR INSTALL
THE AIR BAG SYSTEM COMPONENTS YOU MUST
FIRST DISCONNECT AND ISOLATE THE BATTERY
NEGATIVE (GROUND) CABLE. THEN WAIT TWO
MINUTES FOR THE SYSTEM CAPACITOR TO DIS-
CHARGE. FAILURE TO DO SO COULD RESULT IN
ACCIDENTAL DEPLOYMENT OF THE AIR BAG AND
POSSIBLE PERSONAL INJURY. THE FASTENERS,
SCREWS, AND BOLTS, ORIGINALLY USED FOR
THE AIR BAG COMPONENTS, HAVE SPECIAL
COATINGS AND ARE SPECIFICALLY DESIGNED
FOR THE AIR BAG SYSTEM. THEY MUST NEVER
BE REPLACED WITH ANY SUBSTITUTES. ANYTIME
A NEW FASTENER IS NEEDED, REPLACE WITH
THE CORRECT FASTENERS PROVIDED IN THE
SERVICE PACKAGE OR FASTENERS LISTED IN
THE PARTS BOOKS.
WARNING: SAFETY GOGGLES SHOULD BE WORN
AT ALL TIMES WHEN WORKING ON STEERING
COLUMNS.
CAUTION: Disconnect negative (ground) cable from
the battery before servicing any column compo-
nent.
CAUTION: Do not attempt to remove the pivot pins
to disassemble the tilting mechanism. Damage will
occur.
DIAGNOSIS AND TESTING - STEERING
COLUMN
For diagnosis of conditions relating to the steering
column, (Refer to 19 - STEERING - DIAGNOSIS
AND TESTING).
REMOVAL
NOTE: Before proceeding, (Refer to 19 - STEERING/
COLUMN - WARNING)(Refer to 8 - ELECTRICAL/RE-
STRAINTS/DRIVER AIRBAG - REMOVAL).
(1) Make sure the front wheels of the vehicle are
in the STRAIGHT AHEAD position before beginning
the column removal procedure.
(2) Disconnect and isolate the negative (ground)
cable from the battery. Wait at least two minutes for
the airbag system reserve capacitor to discharge
before beginning any steering column, instrument
panel, or airbag system/component service.WARNING: WHEN AN UNDEPLOYED AIRBAG IS TO
BE REMOVED FROM THE VEHICLE, FIRST DISCON-
NECT AND ISOLATE THE BATTERY NEGATIVE
(GROUND) CABLE. ALLOW THE AIRBAG SYSTEM
RESERVE CAPACITOR TO DISCHARGE FOR TWO
MINUTES BEFORE BEGINNING ANY AIRBAG SYS-
TEM OR COMPONENT SERVICE. PERSONAL
INJURY MAY RESULT IF THIS PROCEDURE IS NOT
FOLLOWED.
(3) Remove the driver airbag mounting screws
(Fig. 2).
(4) Lift the airbag from its mount and disconnect
two airbag squib, speed control and horn connectors
(Fig. 3). Remove driver airbag. Properly store the
driver airbag out of the way. (Refer to 8 - ELECTRI-
CAL/RESTRAINTS - WARNING)
(5) Remove the steering wheel retaining bolt (Fig.
4).
(6) Remove damper (Fig. 4).
(7) If equipped, disconnect the remote audio con-
trol switch wiring from the clockspring (Fig. 4).
CAUTION: Do not bump or hammer on steering col-
umn or steering column shaft when removing steer-
ing wheel from steering column shaft.
CAUTION: When installing steering wheel puller
bolts in steering wheel, do not thread bolt into
steering wheel more than a half inch. If the bolts
are threaded into the steering wheel more than a
half inch they will contact and damage the clock-
spring.
Fig. 2 Driver Airbag Mounting
1 - DRIVER AIRBAG
2 - MOUNTING SCREWS
RSCOLUMN19-11
COLUMN (Continued)

(2) Feed and route wiring from clockspring
through upper access hole in steering wheel.
(3) Align master serrations in steering wheel with
omitted spline on steering column shaft (at 12 o'clock
position). Slide the steering wheel onto the steering
column shaft by hand (Fig. 42). Use care not to pinch
any wiring.
NOTE: Before installing the damper on the steering
wheel, inspect the damper to ensure the rubber iso-
lator on the damper is not deteriorated or damaged.
If the damper is installed with a damaged isolator, a
buzz, squeak or rattle condition may develop.
(4) Install the damper on the steering wheel (Fig.
42).
(5) Install the steering wheel retaining bolt.
Tighten the steering wheel retaining bolt to 61 N´m
(45 ft. lbs.) torque.(6) If the steering wheel is equipped with remote
audio controls, connect the wiring connector to the
clockspring (Fig. 42).
(7) Connect the airbag squib wiring connectors to
the airbag and the horn and speed control switch
connector to the clockspring (Fig. 41).
(8) Install the driver airbag in the steering wheel
(Fig. 40). Install and tighten the airbag attaching
screws to 10 N´m (90 in. lbs.) torque.
(9) Connect the battery negative (ground) cable to
battery post following special Diagnosis And Testing
procedure. (Refer to 8 - ELECTRICAL/RESTRAINTS
- DIAGNOSIS AND TESTING)
(10) Check operation of all steering wheel mounted
components.
(11) Road test vehicle to ensure proper operation of
steering.
RSCOLUMN19-25
STEERING WHEEL (Continued)

TRANSMISSION/TRANSAXLE
TABLE OF CONTENTS
page page
40TE AUTOMATIC TRANSAXLE..............141TE AUTOMATIC TRANSAXLE............146
40TE AUTOMATIC TRANSAXLE
TABLE OF CONTENTS
page page
40TE AUTOMATIC TRANSAXLE
DESCRIPTION..........................2
OPERATION............................4
DIAGNOSIS AND TESTING
DIAGNOSIS AND TESTING - 4XTE
TRANSAXLE GENERAL DIAGNOSIS........5
DIAGNOSIS AND TESTING - ROAD TEST....5
DIAGNOSIS AND TESTING - HYDRAULIC
PRESSURE TESTS.....................6
DIAGNOSIS AND TESTING - CLUTCH AIR
PRESSURE TESTS.....................8
DIAGNOSIS AND TESTING - TORQUE
CONVERTER HOUSING FLUID LEAKAGE....9
REMOVAL.............................9
DISASSEMBLY.........................12
ASSEMBLY............................29
INSTALLATION.........................51
SCHEMATICS AND DIAGRAMS
4XTE TRANSAXLE HYDRAULIC
SCHEMATICS........................54
SPECIFICATIONS - 41TE TRANSAXLE.......66
SPECIAL TOOLS.......................68
ACCUMULATOR
DESCRIPTION.........................73
OPERATION...........................73
DRIVING CLUTCHES
DESCRIPTION.........................74
OPERATION...........................74
FINAL DRIVE
DESCRIPTION.........................74
OPERATION...........................75
DISASSEMBLY.........................75
ASSEMBLY............................78
ADJUSTMENTS
DIFFERENTIAL BEARING PRELOAD
MEASUREMENT AND ADJUSTMENT......79FLUID
STANDARD PROCEDURE
FLUID LEVEL AND CONDITION CHECK....82
STANDARD PROCEDURE - FLUID AND
FILTER SERVICE......................82
GEAR SHIFT CABLE
REMOVAL.............................84
HOLDING CLUTCHES
DESCRIPTION.........................86
OPERATION...........................86
INPUT CLUTCH ASSEMBLY
DISASSEMBLY.........................86
ASSEMBLY............................95
OIL PUMP
DESCRIPTION........................110
OPERATION..........................110
DISASSEMBLY........................110
ASSEMBLY...........................112
PLANETARY GEARTRAIN
DESCRIPTION........................112
OPERATION..........................112
SEAL - OIL PUMP
REMOVAL............................113
INSTALLATION........................113
SHIFT INTERLOCK SOLENOID
DESCRIPTION........................113
OPERATION..........................114
DIAGNOSIS AND TESTING - BRAKE/
TRANSMISSION SHIFT INTERLOCK
SOLENOID..........................115
REMOVAL............................115
INSTALLATION........................116
SOLENOID/PRESSURE SWITCH ASSY
DESCRIPTION........................117
OPERATION..........................118
REMOVAL............................118
INSTALLATION........................119
RSTRANSMISSION/TRANSAXLE21-1