OUTLET CHRYSLER VOYAGER 2004 Repair Manual

OIL COOLER & LINES
DESCRIPTION
An engine oil cooler is used on 3.3/3.8L engines
(Heavy Duty Cooling Only) (Fig. 98). The cooler is a
coolant-to-oil type and mounted between the oil filter
and engine block.
OPERATION
Engine oil travels from the oil filter and into the
oil cooler. Engine oil then exits the cooler into the
main gallery. Engine coolant flows into the cooler
from the heater return tube and exits into the water
pump inlet.
REMOVAL
(1) Drain cooling system (Refer to 7 - COOLING -
STANDARD PROCEDURE - COOLING SYSTEM
DRAINING).
(2) Disconnect oil cooler inlet and outlet hoses
(Fig. 97).
(3) Remove oil filter.
(4) Remove oil cooler attachment fitting (Fig. 98).
(5) Remove oil cooler.
INSTALLATION
(1) Lubricate seal and position oil cooler to connec-
tor fitting on oil filter adapter (Fig. 98).NOTE: Position the flat side of oil cooler parallel to
oil pan rail.
(2) Install oil cooler attachment fitting and tighten
to 27 N´m (20 ft. lbs.) (Fig. 98).
(3) Install oil filter.
(4) Connect oil cooler inlet and outlet hoses (Fig.
97).
Fig. 96 Engine Oil Level Dipstick and Fill Locations
1 - COOLANT RECOVERY CONTAINER 3 - ENGINE OIL LEVEL DIPSTICK
2 - ENGINE OIL FILL CAP 4 - RADIATOR PRESSURE CAP
Fig. 97 Engine Oil Cooler Hoses
1 - OIL COOLER INLET TUBE
2 - INLET HOSE
3 - OIL COOLER OUTLET TUBE
4 - OUTLET HOSE
5 - WATER PUMP INLET TUBE
9 - 138 ENGINE 3.3/3.8LRS
OIL (Continued)

(16) Remove camshaft position sensor from timing
chain cover (Fig. 136).
Fig. 133 OIL PICKUP TUBE
1 - BOLT
2 - OIL PICK-UP TUBE
3 - O-RING
Fig. 134 HEATER RETURN HOSE (Without Engine
Oil Cooler)
1 - CAP AND CLAMP (OIL COOLER EQUIPPED ONLY)
2 - HOSE ASSEMBLY - HEATER RETURN
3 - BOLT - HEATER TUBE ATTACHING
4 - BOLT - HEATER TUBE ATTACHING
Fig. 135 HEATER HOSES 3.3/3.8L (With Engine Oil
Cooler)
1 - HOSE - HEATER SUPPLY
2 - HOSE - HEATER RETURN
3 - TUBE ASSEMBLY - HEATER RETURN
4 - BOLT - TUBE ASSEMBLY
5 - BOLT - TUBE ASSEMBLY
6 - HOSE - HEATER RETURN/OIL COOLER OUTLET
Fig. 136 Engine Mount Bracket
1 - CAMSHAFT SENSOR
2 - BOLT - CAMSHAFT SENSOR
3 - BOLT - MOUNT BRACKET (VERTICAL)
4 - BRACKET - ENGINE MOUNT
5 - BOLT - MOUNT BRACKET (HORIZONTAL)
6 - PULLEY - IDLER
7 - BOLT - IDLER PULLEY
8 - SPACER - IDLER PULLEY BOLT
9 - BOLT - MOUNT BRACKET (HORIZONTAL)
9 - 154 ENGINE 3.3/3.8LRS
TIMING CHAIN COVER (Continued)

SPECIAL TOOLS
EXHAUST SYSTEM
CATALYTIC CONVERTER
DESCRIPTION
The toe board three-way catalytic converter is con-
nected to the exhaust manifold by the use of flex
joint and a gasket. The outlet connects to the muffler
inlet pipe and is secured with a band type clamp
(Fig. 1).
The exhaust flex-joint coupling (Fig. 3) is used to
secure the catalytic converter to the exhaust manifold.
The flex-joint has four bolts, four flag nuts and a gas-
ket that are separate parts from the exhaust flex-joint.
The flex-joint is welded to the catalytic converter.
CAUTION: When servicing, care must be exercised
not to dent or bend the bellows or bellows cover of
the flex-joint. Should this occur, the flex-joint will
eventually fail and require the catalytic converter be
replaced.
OPERATION
The three-way catalytic converter simultaneously
converts three exhaust emissions into harmless
gases. Specifically, HC and CO emissions are con-
verted into water (H2O) and carbon dioxide (CO2).
Oxides of Nitrogen (NOx) are converted into elemen-
tal Nitrogen (N) and water. The three-way catalyst is
most efficient in converting HC, CO and NOx at the
stoichiometric air fuel ratio of 14.7:1.
The oxygen content in a catalyst is important for
efficient conversion of exhaust gases. When a high
oxygen content (lean) air/fuel ratio is present for an
extended period, oxygen content in a catalyst can
reach a maximum. When a rich air/fuel ratio is
present for an extended period, the oxygen content in
the catalyst can become totally depleted. When this
occurs, the catalyst fails to convert the gases. This is
known as catalyst9punch through.9
Catalyst operation is dependent on its ability to
store and release the oxygen needed to complete the
emissions-reducing chemical reactions. As a catalyst
deteriorates, its ability to store oxygen is reduced.
Since the catalyst's ability to store oxygen is some-
what related to proper operation, oxygen storage can
be used as an indicator of catalyst performance.
Refer to the appropriate Diagnostic Information for
diagnosis of a catalyst related Diagnostic Trouble
Code (DTC).
Back Pressure Test Adapter - CH8519
Pressure Transducer CH7063
DRB III & PEP Module - OT-CH6010A
Fig. 3 Flex-joint
1 - FLANGE
2 - END CAPS
3 - CATALYTIC CONVERTER
4 - FLEXIBLE BELLOWS
11 - 4 EXHAUST SYSTEMRS
EXHAUST SYSTEM (Continued)

FUEL PUMP
DESCRIPTION
The electric fuel pump is located in and is part of
the fuel pump module. It is a positive displacement,
gerotor type, immersible pump with a permanent
magnet electric motor. The fuel pump module is sus-
pended in fuel in the fuel tank.
OPERATION
The pump draws fuel through a strainer and
pushes it through the motor to the outlet. The pump
contains a check valve. The valve, in the pump out-
let, maintains pump pressure during engine off con-
ditions, for a short while. It is normal for fuel
pressure to drop to zero after cooldown. The fuel
pump relay provides voltage to the fuel pump. The
fuel pump has a maximum deadheaded pressure out-
put of approximately 880 kPa (130 psi). The regula-
tor adjusts fuel system pressure to approximately
400 kpa  34 kpa (58 psi   5 psi).
FUEL PUMP MODULE
DESCRIPTION
The fuel pump module is installed in the top of the
fuel tank (Fig. 9).
The fuel pump module contains the following:
²Electric fuel pump²Fuel pump reservoir
²Inlet strainer
²Fuel pressure regulator
²Fuel gauge sending unit
²Fuel supply line connection
The inlet strainer, fuel pressure regulator
and fuel level sensor are the only serviceable
items. If the fuel pump or electrical wiring har-
ness requires service, replace the fuel pump
module.
The electric fuel pump is located in and is part of
the fuel pump module. It is a positive displacement,
gerotor type, immersible pump with a permanent
magnet electric motor.
OPERATION
The pump draws fuel through a strainer and
pushes it through the motor to the outlet. The pump
contains one check valve. The check valve, in the
pump outlet, maintains pump pressure during engine
off conditions. The fuel pump relay provides voltage
to the fuel pump.
The fuel pump has a maximum deadheaded pres-
sure output of approximately 880 kPa (130 psi). The
regulator adjusts fuel system pressure to approxi-
mately 400  34 kPa (58  5 psi).
FUEL PUMP ELECTRICAL CONTROL
Voltage to operate the electric pump is supplied
through the fuel pump relay. For an electrical opera-
tional description of the fuel pump refer to fuel Pump
RelayÐPCM Output.
ELECTRICAL PUMP REPLACEMENT
The electric fuel pump is not serviceable. If the
fuel pump or electrical wiring harness needs replace-
ment, the complete fuel pump module must be
replaced. Perform the Fuel System Pressure Release
procedure before servicing the fuel pump.
REMOVAL
WARNING: RELEASE FUEL SYSTEM PRESSURE
BEFORE SERVICING FUEL SYSTEM COMPONENTS.
SERVICE VEHICLES IN WELL VENTILATED AREAS
AND AVOID IGNITION SOURCES. NEVER SMOKE
WHILE SERVICING THE VEHICLE.
(1) Remove fuel filler cap and perform Fuel Sys-
tem Pressure Release procedure.
(2) Disconnect negative cable from auxiliary
jumper terminal.
(3) Drain fuel tank, refer to the Fuel Tank proce-
dure in the Fuel Delivery section.
(4) Remove fuel tank, refer to the Fuel Tank
removal section.
Fig. 9 Fuel Pump Module
1 - INLET STRAINER
2 - FUEL RESERVOIR
3 - FUEL PRESSURE REGULATOR
4 - FUEL LEVEL SENSOR
5 - FILTER
6 - GROUND STRAPS
14 - 8 FUEL DELIVERYRS

INSTALLATION
(1) Install filler tube to tank (Fig. 19).
(2) Install the ground strap.
(3)For RGConnect the vent at the top of the filler
tube.
(4) Install the 3 screws at the filler door.(5)For RGInstall the canister from filler tube
(Fig. 20).
(6) Install the splash shield.
(7) Install the left rear tire.
(8) lower vehicle.
(9) Connect the negative battery cable.
INLET FILTER
REMOVAL
(1) Remove fuel pump module. Refer to Fuel Pump
Module Removal in this section.
(2) Using a thin straight blade screwdriver, pry
back the locking tabs on fuel pump reservoir and
remove the strainer (Fig. 21).
(3) Remove strainer O-ring from the fuel pump
reservoir body.
(4) Remove any contaminants in the fuel tank by
washing the inside of the fuel tank.
INSTALLATION
(1) Lubricate the strainer O-ring with clean engine
oil.
(2) Insert strainer O-ring into outlet of strainer so
that it sits evenly on the step inside the outlet.
(3) Push strainer onto the inlet of the fuel pump
reservoir body. Make sure the locking tabs on the
reservoir body lock over the locking tangs on the
strainer.
(4) Install fuel pump module. Refer to Fuel Pump
Module Installation in this section.
Fig. 19 FUEL FILLER TUBE AND VENT TUBE (RG)
Fig. 20 FUEL TUBE VENT CANISTER (RG)
Fig. 21 Inlet
1 - TABS
2 - INLET STRAINER
RSFUEL DELIVERY14-13
FUEL TANK FILLER TUBE (Continued)

O2 SENSOR
DESCRIPTION
The upstream oxygen sensor threads into the out-
let flange of the exhaust manifold (Fig. 22) or (Fig.
23).
The downstream heated oxygen sensor threads into
the outlet pipe at the rear of the catalytic convertor
(Fig. 24).
OPERATION
A seperate upstream and downstream grounds are
used on the NGC vehicles (4 Cyl.).
As vehicles accumulate mileage, the catalytic con-
vertor deteriorates. The deterioration results in aless efficient catalyst. To monitor catalytic convertor
deterioration, the fuel injection system uses two
heated oxygen sensors. One sensor upstream of the
catalytic convertor, one downstream of the convertor.
The PCM compares the reading from the sensors to
calculate the catalytic convertor oxygen storage
capacity and converter efficiency. Also, the PCM uses
the upstream heated oxygen sensor input when
adjusting injector pulse width.
When the catalytic converter efficiency drops below
emission standards, the PCM stores a diagnostic
trouble code and illuminates the malfunction indica-
tor lamp (MIL).
The O2 sensors produce a constant 2.5 volts on
NGC vehicles, depending upon the oxygen content of
the exhaust gas. When a large amount of oxygen is
present (caused by a lean air/fuel mixture, can be
caused by misfire and exhaust leaks), the sensors
produces a low voltage. When there is a lesser
amount of oxygen present (caused by a rich air/fuel
mixture, can be caused by internal engine problems)
it produces a higher voltage. By monitoring the oxy-
gen content and converting it to electrical voltage,
the sensors act as a rich-lean switch.
The oxygen sensors are equipped with a heating
element that keeps the sensors at proper operating
temperature during all operating modes. Maintaining
correct sensor temperature at all times allows the
system to enter into closed loop operation sooner.
Also, it allows the system to remain in closed loop
operation during periods of extended idle.
In Closed Loop operation the PCM monitors the O2
sensors input (along with other inputs) and adjusts
the injector pulse width accordingly. During Open
Loop operation the PCM ignores the O2 sensor input.
Fig. 22 O2 SENSOR UPSTREAM 1/1 - 2.4L
Fig. 23 O2 SENSOR UPSTREAM 1/1 - 3.3/3.8L
Fig. 24 O2 SENSOR DOWNSTREAM 1/2 - 2.4/3.3/
3.8L
14 - 32 FUEL INJECTIONRS

STEERING
TABLE OF CONTENTS
page page
STEERING
DESCRIPTION - POWER STEERING SYSTEM . . 1
OPERATION - POWER STEERING SYSTEM . . . 1
DIAGNOSIS AND TESTING
DIAGNOSIS AND TESTING - POWER
STEERING SYSTEM FLOW AND
PRESSURE TEST......................1
DIAGNOSIS AND TESTING - STEERING
SYSTEM DIAGNOSIS CHARTS............3SPECIFICATIONS
POWER STEERING FASTENER TORQUE . . . 9
SPECIAL TOOLS
POWER STEERING....................9
COLUMN..............................10
GEAR.................................26
PUMP.................................36
STEERING
DESCRIPTION - POWER STEERING SYSTEM
This vehicle comes with power steering as stan-
dard equipment. The power steering system consists
of these major components:
²POWER STEERING PUMP
²POWER STEERING GEAR
²POWER STEERING FLUID
²POWER STEERING FLUID COOLER
²POWER STEERING FLUID RESERVOIR
²POWER STEERING FLUID SUPPLY HOSE
²POWER STEERING FLUID PRESSURE HOSE
²POWER STEERING FLUID RETURN HOSE
For information on the first two components, refer
to their respective sections within this service man-
ual group. Information on all other components can
be found in POWER STEERING PUMP.
OPERATION - POWER STEERING SYSTEM
Turning of the steering wheel is converted into lin-
ear (side-to-side) travel through the meshing of the
helical pinion teeth with the rack teeth within the
steering gear. The lateral travel pushes and pulls the
tie rods to change the direction of the vehicle's front
wheels.
Power assist steering is provided by a belt driven
rotary type pump. It directs fluid through power
steering fluid hoses to the power steering gear where
it is used to assist the driver's turning effort.
Manual steering control of the vehicle can be main-
tained if power steering assist is lost. However,
under this condition, steering effort is significantly
increased.
DIAGNOSIS AND TESTING
DIAGNOSIS AND TESTING - POWER STEERING
SYSTEM FLOW AND PRESSURE TEST
ALL ENGINES
The following procedure is to be used to test the
operation of the power steering system on this vehi-
cle. This test will provide the flow rate of the power
steering pump along with the maximum relief pres-
sure. This test is to be performed to determine if the
power steering pump or power steering gear is not
functioning properly. The following flow and pressure
test is performed using the Power Steering Analyzer
Kit, Special Tool 6815 (Fig. 1), hoses, Special Tools
6905 and 6959, and fittings from adapter kit, Special
Tool 6893.
Fig. 1 Power Steering Analyzer With Hoses Installed
1 - OUTLET
2 - SPECIAL TOOL 6815
3 - INLET
RSSTEERING19-1

Assemble hoses on Power Steering Analyzer, Spe-
cial Tool 6815, as shown. Install Pressure Hose, Spe-
cial Tool 6905 (in 6893 kit), in the inlet fitting on
Power Steering Analyzer. Install Pressure Hose, Spe-
cial Tool 6713 (in 6815 kit) on Pressure Hose, Special
Tool 6905. Install Pressure Hose, Special Tool 6959,
in the outlet fitting on Power Steering Analyzer.
Install the following adapters from Adapter Set,
Special Tool 6893 (Fig. 2), on the analyzer hose ends:
Install Adapter Fitting, Special Tool 6844, on Pres-
sure Hose, Special Tool 6713. Install Adapter Fitting,
Special Tool 6826, on Pressure Hose, Special Tool
6959.
CAUTION: To prevent personal injury, safety gog-
gles should be worn at all times when performing
any test procedures on the power steering pump or
power steering gear.
The following procedure is to be used to test the
operation of the power steering system on the vehi-
cle.
(1) Check belt tension and adjust as necessary.
(2) Disconnect the power steering fluid pressure
hose from the power steering pump (Fig. 3) (Fig. 4).
(3) Connect Adapter Fitting, Special Tool 6844,
attached to pressure hose from inlet (gauge end) of
Power Steering Analyzer to the pressure fitting on
the power steering pump.
(4) Connect vehicle power steering fluid pressure
hose to Adapter Fitting, Special Tool 6826, which
should be already installed in the outlet hose (valve
end) of Power Steering Analyzer.NOTE: During the next few steps, do not steer vehi-
cle as air will be forced into the steering gear.
(5) Completely open valve on Power Steering Ana-
lyzer.
Fig. 2 Power Steering Analyzer Adapters 6893
Fig. 3 Pressure Hose Connection To Power Steering
Pump - 2.4L Engine
1 - POWER STEERING FLUID RETURN HOSE
2 - POWER STEERING PUMP
3 - POWER STEERING FLUID PRESSURE HOSE
Fig. 4 Supply & Pressure Hoses At Pump - 3.3L/3.8L
Engine
1 - PRESSURE HOSE AND FITTING
2 - SUPPLY HOSE AND CLAMP
3 - POWER STEERING PUMP
19 - 2 STEERINGRS
STEERING (Continued)

FLUID
STANDARD PROCEDURE - POWER STEERING
FLUID LEVEL CHECKING
WARNING: FLUID LEVEL SHOULD BE CHECKED
WITH THE ENGINE OFF TO PREVENT INJURY
FROM MOVING PARTS AND TO ENSURE ACCU-
RATE FLUID LEVEL READING.
The fluid level can be read on the exterior of the
power steering fluid reservoir. The fluid level should
be within the ªFILL RANGEº when the fluid is at
normal ambient temperature, approximately 21ÉC to
27ÉC (70ÉF to 80ÉF) (Fig. 17).
Before removing the power steering filler cap, wipe
the reservoir filler cap free of dirt and debris. Do not
overfill the power steering system.Use only
MopartATF+4 Automatic Transmission Fluid
(MS-9602) in the power steering system.For
additional information on Automatic Transmission
Fluid, (Refer to LUBRICATION & MAINTENANCE/
FLUID TYPES - DESCRIPTION).
CAUTION: Use only MoparTATF+4 Automatic Trans-
mission Fluid (MS-9602). Use of other MoparT
power steering fluids (MS5931 and MS9933) should
be avoided to ensure peak performance of the
power steering system under all operating condi-
tions.
FLUID COOLER
DESCRIPTION
All models (except 2.5L Diesel) are equipped with a
cooler for the power steering system fluid. The power
steering fluid cooler is located on the front suspen-sion cradle crossmember reinforcement (Fig. 18).
There are two different size coolers depending on
model and options. There is a standard 6-inch and an
8-inch.
OPERATION
The purpose of the power steering fluid cooler is to
keep the temperature of the power steering system
fluid from rising to a level that would affect the per-
formance of the power steering system.
The cooler used on this vehicle is referred to as a
fluid-to-air type cooler. This means that the air flow
across the tubes (and fines surrounding them) of the
cooler is used to extract the heat from the cooler
which it has absorbed from the power steering fluid
flowing through it. The cooler is placed in the power
steering fluid return line, between the steering gear
and the power steering fluid reservoir.
REMOVAL
(1) Using a siphon pump, remove as much fluid as
possible from the power steering fluid reservoir.
(2) Raise vehicle. (Refer to LUBRICATION &
MAINTENANCE/HOISTING - STANDARD PROCE-
DURE)
(3) Remove the hose clamps at the cooler and
remove the hoses from the cooler inlet and outlet
tubes.
(4) Remove the 2 bolts attaching the power steer-
ing cooler cradle crossmember reinforcement (Fig.
18). Remove the cooler.
Fig. 17 Power Steering Fluid Reservoir
Fig. 18 Power Steering Cooler
1 - CRADLE CROSSMEMBER REINFORCEMENT
2 - POWER STEERING COOLER
19 - 44 PUMPRS

(8) Remove pressure hose routing bracket bolt at
engine (Fig. 21). Bolt can be accessed through hole in
cradle crossmember (Fig. 22).
(9) Disconnect pressure hose tube nut at power
steering pump (Fig. 21).
(10) Remove power steering fluid pressure hose
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 pressure outlet fitting and
steering gear port.
(3) Install new O-rings on ends of power steering
fluid pressure hose. Lubricate O-rings using clean
power steering fluid.CAUTION: Use care not to bend tube ends of power
steering hoses when installing. Leaks and restric-
tions may occur.
CAUTION: Power steering fluid hoses must remain
away from exhaust system and must not come in
contact with any unfriendly surfaces on vehicle.
(4) Route hose up through cradle crossmember
toward power steering pump avoiding tight bends or
kinking.
(5) Install power steering pressure hose end into
pump pressure outlet fitting (Fig. 19). Thread tube
nut into outlet fitting, but do not tighten at this time.
(6) Route hose behind cradle crossmember and
start hose end into gear port. Do not tighten hose
tube nut at this time.
(7) Install hose into right routing clamp (Fig. 19),
then install mounting bolt into cradle crossmember.
Tighten bolt to 23 N´m (200 in. lbs.) torque.
Fig. 20 HOSES TO POWER STEERING GEAR - 3.3L/3.8L ENGINE
1 - RETURN HOSE (TO RESERVOIR)
2 - PRESSURE HOSE (FROM PUMP)
3 - CRADLE CROSSMEMBER
4 - PRESSURE HOSE ROUTING CLAMP
5 - RETURN HOSE ROUTING CLAMP
6 - PRESSURE HOSE TUBE NUT7 - POWER STEERING GEAR
8 - ABS BRACKET
9 - ROUTING CLIP
10 - LEAK DETECTION PUMP FILTER
11 - RETURN HOSE TUBE NUT
12 - ROUTING CLIP
19 - 46 PUMPRS
HOSE - POWER STEERING PRESSURE (Continued)