2002 CHRYSLER VOYAGER low oil pressure

DESCRIPTION N´mFt.
Lbs.In.
Lbs.
Exhaust Crossover
PipeÐBolts54 40 Ð
Intake Manifold -
LowerÐBolts23 Ð 200
Intake Manifold - Lower
Gasket RetainerÐBolts12 Ð 105
Intake Manifold
UpperÐBolts12 Ð 105
Lifter Yoke RetainerÐ
Bolts12 Ð 105
Oil Filter Attaching Fitting 54 40 Ð
Oil Cooler Attaching
Fitting27 20 Ð
Oil Filter 20 15 Ð
Oil Filter AdapterÐBolts 28 Ð 250
Oil Gallery Plug 27 20 Ð
Oil PanÐBolts 12 Ð 105
Oil Pan DrainÐPlug 27 20 Ð
Oil Pressure Switch 23 Ð 200
Oil Pump Cover
PlateÐScrews12 Ð 105
Oil Pump Pick-up
TubeÐBolt28 Ð 250
Oil Dipstick HousingÐ
Bolts48 35 Ð
Rocker Arm ShaftÐBolts 23 Ð 200
Spark Plug 16 12 Ð
Timing Chain Case Cover
ÐM8 Bolt 27 20 Ð
ÐM10 Bolt 54 40 Ð
Water PumpÐBolts 12 Ð 105
Water Pump PulleyÐ
Bolts28 Ð 250SPECIAL TOOLS
3.3/3.8L ENGINE
Dolly 6135
Cradle 6710A
Adapter 6909A
Adapter 8444
9 - 96 ENGINE 3.3/3.8LRS
ENGINE 3.3/3.8L (Continued)
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(2) Follow the same procedure on the remaining 5
cylinders using the firing sequence 1-2-3-4-5-6.Make
sure piston in cylinder is at TDC on the valve
spring that is being covered.
(3) Remove spark plug adapter tool.
(4) Install rocker arms and shaft assembly. (Refer
to 9 - ENGINE/CYLINDER HEAD/ROCKER ARMS -
INSTALLATION)
(5) Install cylinder head covers. (Refer to 9 -
ENGINE/CYLINDER HEAD/CYLINDER HEAD
COVER(S) - INSTALLATION)
(6) Install spark plugs and connect wires.
(7) Connect negative cable to battery.
ROCKER ARMS
DESCRIPTION
DESCRIPTION - ROCKER ARMS
The rocker arms are installed on the rocker arm
shaft. The rocker arms and shaft assembly is
attached to the cylinder head with seven bolts and
retainers. The rocker arms are made of stamped
steel.
DESCRIPTION - PUSHRODS
The pushrods are made of steel and are a hollow
design. The pushrods are positioned between the
hydraulic lifter and the rocker arm.
OPERATION
OPERATION - ROCKER ARMS
The rocker arm pivots on the rocker shaft. Rocker
arms are used to translate up and down motions pro-
vided by the camshaft, hydraulic lifter, and pushrod
on one end, into a down and up motions on the valve
stem on the opposing end.
OPERATION - PUSHRODS
The pushrod is a solid link between the hydraulic
lifter and the rocker arm. Also, the pushrod supplies
engine oil from the hydraulic lifter to the rocker arm.
REMOVAL - ROCKER ARMS AND SHAFT
(1) Remove the cylinder head cover(s). (Refer to 9 -
ENGINE/CYLINDER HEAD/CYLINDER HEAD
COVER(S) - REMOVAL)
NOTE: Rocker arm shaft bolts are captured to the
shaft.
(2) Loosen the rocker shaft bolts (Fig. 40), rotating
one turn each, until all valve spring pressure is
relieved.
(3) Remove the rocker arms and shaft assembly
(Fig. 40).
(4) For rocker arm disassembly procedures, (Refer
to 9 - ENGINE/CYLINDER HEAD/ROCKER ARMS -
DISASSEMBLY).
DISASSEMBLY - ROCKER ARMS AND SHAFT
CAUTION: Do not attempt to drive the bolt from the
rocker shaft. This can damage the retainer and bolt
assembly.
(1) Remove the rocker arm retainer and bolt by
performing the following procedure:
(a) Using adjustable pliers, grip the edges of the
retainer (Fig. 41).
(b) Apply an upward force with a slight rocking
motion until the retainer disengages from shaft
(Fig. 41).
(2) Remove rocker arms (Fig. 42). Identify the
component locations for reassembly in original loca-
tions.
Fig. 40 ROCKER ARMS AND SHAFT
1 - ROCKER ARMS AND SHAFT ASSEMBLY
2 - ROCKER SHAFT BOLTS
9 - 110 ENGINE 3.3/3.8LRS
VALVE SPRINGS (Continued)
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(3) Install flex plate bolts (Fig. 70). Tighten bolts
to 95 N´m (70 ft. lbs.).
(4) Install the transaxle (Refer to 21 - TRANSMIS-
SION/TRANSAXLE/AUTOMATIC - 41TE - INSTAL-
LATION).
HYDRAULIC LIFTERS (CAM IN
BLOCK)
DESCRIPTION
The hydraulic lifters are a roller type design and are
positioned in the cylinder block. The lifters are aligned
and retained by a yoke and a retainer (Fig. 71).
Lifter alignment is maintained by machined flats
on lifter body. Lifters are fitted in pairs into six
aligning yokes. The aligning yokes are secured by a
yoke retainer (Fig. 71).
DIAGNOSIS AND TESTING - HYDRAULIC
LIFTERS
HYDRAULIC LIFTERS DIAGNOSIS - PRELIMINARY
STEP
Before disassembling any part of the engine to cor-
rect lifter noise, check the engine oil pressure. (Refer
to 9 - ENGINE/LUBRICATION - DIAGNOSIS AND
TESTING)
Check engine oil level. The oil level in the pan
should never be above the MAX mark on dipstick, or
below the MIN mark. Either of these two conditions
could cause noisy lifters.
OIL LEVEL TOO HIGH
If oil level is above the MAX mark on dipstick, it is
possible for the connecting rods to dip into the oil
while engine is running and create foaming. Foam in
oil pan would be fed to the hydraulic lifters by the oil
pump causing them to become soft and allow valves
to seat noisily.
OIL LEVEL TOO LOW
Low oil level may allow pump to take in air which
when fed to the lifters it causes them to become soft
and allows valves to seat noisily. Any leaks on intake
side of pump, through which air can be drawn, will
create the same lifter noise. Check the lubrication
system from the intake strainer to the oil pump
cover, including the relief valve retainer cap. When
lifter noise is due to aeration, it may be intermittent
or constant, and usually more than one lifter will be
noisy. When oil level and leaks have been corrected,
the engine should be operated at fast idle to allow all
of the air inside of the lifters to be bled out.
VALVE TRAIN NOISE
To determine source of valve train noise, operate
engine at idle with cylinder head covers removed and
listen for source of the noise.
NOTE: Worn valve guides or cocked springs are
sometimes mistaken for noisy lifters. If such is the
case, noise may be dampened by applying side
thrust on the valve spring. If noise is not apprecia-
bly reduced, it can be assumed the noise is in the
tappet. Inspect the rocker arm push rod sockets
and push rod ends for wear.
Valve lifter noise ranges from light noise to a
heavy click. A light noise is usually caused by exces-
sive leak-down around the unit plunger which will
necessitate replacing the lifter, or by the plunger par-
tially sticking in the lifter body cylinder. A heavy
click is caused either by a lifter check valve not seat-
ing, or by foreign particles becoming wedged between
Fig. 71 Hydraulic Lifters
1 - YOKE RETAINER
2 - BOLT - YOKE RETAINER
3 - ALIGNING YOKE
4 - HYDRAULIC LIFTER
RSENGINE 3.3/3.8L9 - 125
FLEX PLATE (Continued)
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RIGHT MOUNT
REMOVAL
(1) Remove air cleaner housing lid and clean air
hose from throttle body.
(2) Remove air cleaner element and housing.
(3) Disconnect make-up air hose from cylinder
head cover.
(4) Remove the load on the right engine mount by
carefully supporting the engine assembly with a floor
jack.
(5) Disconnect electrical harness support clips from
engine mount bracket.
(6) Remove the bolts attaching the engine mount
to the frame rail (Fig. 99).
(7) Remove the three bolts attaching the engine
mount to the engine bracket (Fig. 99).
(8) Remove the right engine mount (Fig. 99).
INSTALLATION
(1) Install engine bracket (if removed). Tighten
bolts to 33 N´m (24 ft. lbs.).
(2) Position right engine mount and install frame
rail to mount bolts (Fig. 99). Tighten bolts to 68 N´m
(50 ft. lbs.).
(3) Install the mount to engine bracket bolts and
tighten to 54 N´m (40 ft. lbs.). (Fig. 99)
(4) Connect electrical harness support clips to
engine mount bracket.
(5) Remove jack from under engine.
(6) Connect make-up air hose to cylinder head
cover.
(7) Install air cleaner housing and element.
(8) Install air cleaner housing lid and clean air
tube to throttle body.
LUBRICATION
DESCRIPTION
The lubrication system is a full flow filtration pres-
sure feed type. The oil pump is mounted in the tim-
ing chain cover and is driven by the crankshaft
OPERATION
Oil from the oil pan is pumped by a internal gear
type oil pump directly coupled to the crankshaft. The
pressure is regulated by a relief valve located in the
timing chain cover. The oil is pumped through an oil
filter and feeds a main oil gallery. This oil gallery
feeds oil under pressure to the main and rod bear-
ings, camshaft bearings. Passages in the cylinder
block feed oil to the hydraulic lifters and rocker shaft
brackets which feeds the rocker arm pivots (Fig.
100).
DIAGNOSIS AND TESTING - ENGINE OIL
PRESSURE
(1) Disconnect and remove oil pressure switch
(Refer to 9 - ENGINE/LUBRICATION/OIL PRES-
SURE SENSOR/SWITCH - REMOVAL).
(2) Install Special Tools C-3292 Gauge with 8406
Adaptor. For Special Tool identification, (Refer to 9 -
ENGINE - SPECIAL TOOLS).
(3) Start engine and record oil pressure. Refer to
Oil Pressure in Engine Specifications for the correct
pressure (Refer to 9 - ENGINE - SPECIFICATIONS).
Fig. 99 Right Engine Mount
1 - RIGHT ENGINE MOUNT
2 - BOLT - MOUNT TO FRAME RAIL
3 - BOLT - MOUNT TO ENGINE
4 - ENGINE MOUNT BRACKET
5 - RIGHT FRAME RAIL
RSENGINE 3.3/3.8L9 - 137
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(9) Lower vehicle and fill crankcase with specified
type and amount of engine oil. (Refer to LUBRICA-
TION & MAINTENANCE/FLUID TYPES -
DESCRIPTION)
(10) Install oil fill cap.
(11) Start engine and inspect for leaks.
(12) Stop engine and inspect oil level.
NOTE: Care should be exercised when disposing
used engine oil after it has been drained from a
vehicle engine. Refer to the WARNING listed above.
STANDARD PROCEDURE - ENGINE OIL LEVEL
CHECK
The best time to check engine oil level is after it
has sat overnight, or if the engine has been running,
allow the engine to be shut off for at least 5 minutes
before checking oil level.
Checking the oil while the vehicle is on level
ground will improve the accuracy of the oil level
reading (Fig. 102). Add only when the level is at or
below the ADD mark.
Fig. 102 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. 101 Engine Oil Drain Plug and Oil Filter
1 - DRAIN PLUG
2 - OIL FILTER
RSENGINE 3.3/3.8L9 - 139
OIL (Continued)
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OIL FILTER ADAPTER
REMOVAL
(1) Raise vehicle on hoist.
(2) Remove the oil filter.
(3) Disconnect oil pressure switch electrical con-
nector.
(4) Remove oil filter adapter attaching bolts (Fig.
105).
(5) Remove oil filter adapter and seal (Fig. 105).
INSTALLATION
(1) Clean oil filter adapter and install new seal.
(2) Position adapter on engine block and install
bolts (Fig. 105).
(3) Tighten adapter bolts to 28 N´m (250 in. lbs.).
(4) Connect oil pressure switch electrical connector
(Fig. 105).
(5) Install the oil filter.
(6) Lower vehicle on hoist.
(7) Start engine and allow to run approximately 2
minutes.(8) Turn off engine and check oil level. Adjust oil
level as necessary.
OIL PAN
REMOVAL
(1) Disconnect negative cable from battery and
remove engine oil dipstick.
(2) Raise vehicle on hoist and drain engine oil.
(3) Remove drive belt splash shield.
(4) Remove strut to transaxle attaching bolt (Fig.
106). Loosen strut to engine block attaching bolts.
(5) Remove transaxle case cover (Fig. 106).
(6) Remove oil pan fasteners (Fig. 107).
(7) Remove the oil pan and gasket (Fig. 107).
CLEANING
(1) Clean oil pan with solvent and wipe dry with a
clean cloth.
(2) Clean all gasket material from mounting sur-
faces of pan and block.
Fig. 105 OIL FILTER ADAPTER
1 - SEAL
2 - OIL FILTER ADAPTER
3 - OIL FILTER
4 - BOLT
5 - OIL PRESSURE SWITCH
6 - BOLTFig. 106 Powertrain Struts and Transaxle Case
Cover
1 - BRACKET - ENGINE REAR MOUNT
2 - BOLT - TRANSAXLE CASE COVER
3 - STRUT - TRANSAXLE TO ENGINE HORIZONTAL
4 - BOLT - HORIZONTAL STRUT
5 - BOLT - STRUT TO TRANSAXLE
6 - COVER - TRANSAXLE CASE LOWER
7 - STRUT - TRANSAXLE TO ENGINE
8 - BOLT - STRUT TO ENGINE
9 - BOLT - ENGINE REAR MOUNT BRACKET
RSENGINE 3.3/3.8L9 - 141
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(3) Clean oil screen and pick-up tube in clean sol-
vent.
INSPECTION
(1) Inspect oil drain plug and plug hole for
stripped or damaged threads and repair as necessary.
Install a new drain plug gasket. Tighten to 27 N´m
(20 ft. lbs.).
(2) Inspect oil pan mounting flange for bends or
distortion. Straighten flange if necessary.
(3) Inspect condition of oil screen and pick-up tube.
INSTALLATION
(1) Clean sealing surfaces and apply a 1/8 inch
bead of MopartEngine RTV GEN II at the parting
line of the chain case cover and the rear seal retainer
(Fig. 108).
(2) Position a new pan gasket on oil pan (Fig. 107).
(3) Install oil pan and tighten fasteners to 12 N´m
(105 in. lbs.) (Fig. 107).
(4) Install cover to transaxle case (Fig. 106).
(5) Install the strut bolt to transaxle housing (Fig.
106). Tighten all bending brace bolts.
(6) Install the drive belt splash shield.
(7) Lower vehicle and install oil dipstick.(8) Connect negative cable to battery.
(9) Fill crankcase with oil to proper level.
OIL PRESSURE RELIEF VALVE
REMOVAL
(1) Remove oil pan (Refer to 9 - ENGINE/LUBRI-
CATION/OIL PAN - REMOVAL).
(2) Drill a 3.175 mm (1/8 in.) hole in the center of
the retainer cap (Fig. 109). Insert a self-threading
sheet metal screw into the cap.
(3) Using suitable pliers, remove cap and discard.
(4) Remove spring and relief valve (Fig. 109).
Fig. 107 OIL PAN
1 - GASKET
2 - BOLT
3 - OIL PAN
4 - NUT
Fig. 108 Oil Pan Sealing
1 - SEALER LOCATIONS
Fig. 109 Oil Pressure Relief Valve
1 - RELIEF VALVE
2 - SPRING
3 - RETAINER CAP
9 - 142 ENGINE 3.3/3.8LRS
OIL PAN (Continued)
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INSTALLATION
(1) Clean relief valve, spring and bore.
NOTE: Lubricate relief valve with clean engine oil
before installing.
(2) Install relief valve and spring into housing.
(3) Install new retainer cap until flush with seal-
ing surface.
(4) Install oil pan (Refer to 9 - ENGINE/LUBRI-
CATION/OIL PAN - INSTALLATION).
(5) Fill crankcase with proper oil to correct level.
OIL PRESSURE SWITCH
DESCRIPTION
The engine oil pressure switch is located on the
lower left front side of the engine. It screws into the
oil filter adapter. The normally closed switch provides
an input through a single wire to the low pressure
indicator light on the instrument cluster.
OPERATION
The oil pressure switch provides a ground for the
instrument cluster low oil pressure indicator light.
The switch receives oil pressure input from the
engine main oil gallery. When engine oil pressure is
greater than 27.5 Kpa (4 psi), the switch contacts
open, providing a open circuit to the low pressure
indicator light. For wiring circuits and diagnostic
information, (Refer to Appropriate Wiring/Diagnostic
Information).
REMOVAL
(1) Raise vehicle on hoist.
(2) Disconnect electrical connector from switch.
(3) Remove oil pressure switch (Fig. 110).
INSTALLATION
(1) Install oil pressure switch. Torque oil pressure
switch to 23 N´m (200 in. lbs.) (Fig. 110).
(2) Connect electrical connector to switch.
(3) Lower the vehicle.
(4) Start engine and check for leaks.
(5) Check engine oil level. Adjust as necessary.
OIL PUMP
DESCRIPTION
The oil pump is located in the timing chain cover.
It is driven by the crankshaft.
REMOVAL
The oil pump is contained within the timing chain
cover housing (Fig. 111).
(1) Remove oil pan. (Refer to 9 - ENGINE/LUBRI-
CATION/OIL PAN - REMOVAL)
(2) Remove the timing chain cover. (Refer to 9 -
ENGINE/VALVE TIMING/TIMING BELT / CHAIN
COVER(S) - REMOVAL)
(3) Disassemble oil pump from timing chain cover.
(Refer to 9 - ENGINE/LUBRICATION/OIL PUMP -
DISASSEMBLY)
(4) Clean and Inspect oil pump components. (Refer
to 9 - ENGINE/LUBRICATION/OIL PUMP - CLEAN-
ING) (Refer to 9 - ENGINE/LUBRICATION/OIL
PUMP - INSPECTION)
Fig. 110 OIL FILTER ADAPTER
1 - SEAL
2 - OIL FILTER ADAPTER
3 - OIL FILTER
4 - BOLT
5 - OIL PRESSURE SWITCH
6 - BOLT
RSENGINE 3.3/3.8L9 - 143
OIL PRESSURE RELIEF VALVE (Continued)
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