2001 CHRYSLER VOYAGER cooling

(43) Connect the vacuum hoses to the throttle
body.
(44) Connect the EGR transducer electrical connec-
tor.
(45) Connect the TPS, IAC, and MAP sensor elec-
trical connectors.
(46) Connect throttle cables to throttle body.
(47) Install the radiator fans. (Refer to 7 - COOL-
ING/ENGINE/RADIATOR FAN - INSTALLATION)
(48) Connect the radiator upper hose.
(49) Connect the heater hoses. Remove pinch-off
pliers from the rear heater hoses, if equipped.
(50) Install the radiator upper support crossmem-
ber. (Refer to 23 - BODY/EXTERIOR/GRILLE OPEN-
ING REINFORCEMENT - INSTALLATION)
(51) Install the wiper module. (Refer to 8 - ELEC-
TRICAL/WIPERS/WASHERS/WIPER MODULE -
INSTALLATION)
(52) Connect the fuel line to fuel rail. (Refer to 14
- FUEL SYSTEM/FUEL DELIVERY/FUEL LINES -
STANDARD PROCEDURE)
(53) Install the air cleaner and hoses.
(54) Install new oil filter. Fill engine crankcase
with proper oil to correct level.
(55) Connect negative cable to battery.
(56) Fill the cooling system. (Refer to 7 - COOL-
ING - STANDARD PROCEDURE)
(57) Start engine and run until operating temper-
ature is reached.
(58) Adjust transmission linkage, if necessary.
SPECIFICATIONS
3.3/3.8L ENGINE
DESCRIPTION SPECIFICATION
General Specification
Type 60É V-6 Engine
Number of Cylinders 6
Displacement
Ð3.3L 3.3 Liters
(201 cu. in.)
Ð3.8L 3.8 Liters
(231 cu. in.)
Bore
Ð3.3L 93.0 mm
(3.66 in.)
Ð3.8L 96.0 mm
(3.779 in.)
DESCRIPTION SPECIFICATION
Stroke
Ð3.3L 81.0 mm
(3.188 in.)
Ð3.8L 87.0 mm
(3.425 in.)
Compression Ratio
Ð3.3L 9.35:1
Ð3.8L 9.6:1
Firing Order 1-2-3-4-5-6
Cylinder Number (Front
to Rear)
ÐFront Bank 2,4,6
ÐRear Bank 1,3,5
Compression PressureÐ
Minimum689.5 kPa
(100 psi)
Max. Variation Between
Cylinders25%
Cylinder Block
Cylinder Bore Diameter
(Standard)
Ð3.3L 92.993±93.007 mm
(3.661±3.6617 in.)
Ð3.8L 95.993±96.007 mm
(3.7792±3.780 in.)
Out-of-Round (Service
Limits)0.076 mm
(0.003 in.)
Taper (Service Limits) 0.051 mm
(0.002 in.)
Lifter Bore Diameter 22.980±23.010 mm
(0.905±0.906 in.)
Deck Surface Flatness
(Max.)0.1 mm
(0.004 in.)
Pistons
Piston Diameter
Ð3.3L ÐMeasured 39.8
mm (1.567 in.) from
piston top92.968±92.998 mm
(3.660±3.661 in.)
Ð3.8L ÐMeasured 33.01
mm (1.30 in.) from piston
top95.968±95.998 mm
(3.778±3.779 in.)
Clearance in Bore @
Size Location (New)-0.005±0.039 mm
(-0.0002±0.0015 in.)
9 - 86 ENGINE 3.3/3.8LRS
ENGINE 3.3/3.8L (Continued)

AIR CLEANER ELEMENT
REMOVAL
(1) Unsnap 2 clips.
(2) Lift cover and pull toward the engine and
remove cover tabs from air box.
(3) Lift cover and remove the element (Fig. 13).
INSTALLATION
(1) Install the air filter element into air box (Fig.
11).
(2) Move cover so that the tabs insert into the air
box.
(3) Push cover down and snap the 2 clips.
AIR CLEANER HOUSING
REMOVAL
(1) Disconnect the negative battery cable.
(2) Disconnect the inlet air temperature sensor
(Fig. 14).
(3) Remove the inlet hose to throttle body.
(4) Remove the bolt for air box at upper radiator
cross member.(5) Pull air box up and off over the single locating
pin.
(6) Remove air box from vehicle
INSTALLATION
(1) Install air box into vehicle and onto the locat-
ing pin.
(2) Install bolt to hold air box to the upper radia-
tor cross member.
(3) Install the inlet hose to the throttle body.
(4) Connect the inlet air temperature sensor (Fig.
14).
(5) Connect the negative battery cable.
Cooling System Tester 7700
Combustion Leak Tester C-3685-A
Compression Test Adapter 8116
Fig. 13 AIR BOX COVER
Fig. 14 Inlet Air Temperature Sensor
RSENGINE 3.3/3.8L9-93
SPECIAL TOOLS (Continued)

CYLINDER-TO-CYLINDER LEAKAGE TEST
To determine if an engine cylinder head gasket is
leaking between adjacent cylinders, follow the proce-
dures in Cylinder Compression Pressure Test (Refer
to 9 - ENGINE - DIAGNOSIS AND TESTING). An
engine cylinder head gasket leaking between adja-
cent cylinders will result in approximately a 50±70%
reduction in compression pressure.
CYLINDER-TO-WATER JACKET LEAKAGE TEST
WARNING: USE EXTREME CAUTION WHEN THE
ENGINE IS OPERATING WITH COOLANT PRES-
SURE CAP REMOVED.
VISUAL TEST METHOD
With the engine cool, remove the coolant pressure
cap. Start the engine and allow it to warm up until
thermostat opens.
If a large combustion/compression pressure leak
exists, bubbles will be visible in the coolant.
COOLING SYSTEM TESTER METHOD
WARNING: WITH COOLING SYSTEM TESTER IN
PLACE, PRESSURE WILL BUILD UP FAST. EXCES-
SIVE PRESSURE BUILT UP, BY CONTINUOUS
ENGINE OPERATION, MUST BE RELEASED TO A
SAFE PRESSURE POINT. NEVER PERMIT PRES-
SURE TO EXCEED 138 kPa (20 psi).
Install Cooling System Tester 7700 or equivalent to
pressure cap neck. Start the engine and observe the
tester's pressure gauge. If gauge pulsates with every
power stroke of a cylinder a combustion pressure
leak is evident.
CHEMICAL TEST METHOD
Combustion leaks into the cooling system can also
be checked by using Bloc-Chek Kit C-3685-A or
equivalent. Perform test following the procedures
supplied with the tool kit.
REMOVAL - CYLINDER HEAD
(1) Drain the cooling system. (Refer to 7 - COOL-
ING - STANDARD PROCEDURE)
(2) Disconnect negative cable from battery.
(3) Remove upper and lower intake manifolds.
(Refer to 9 - ENGINE/MANIFOLDS/INTAKE MANI-
FOLD - REMOVAL)
WARNING: INTAKE MANIFOLD GASKET IS MADE
OF VERY THIN METAL AND MAY CAUSE PER-
SONAL INJURY, HANDLE WITH CARE.(4) Remove the cylinder head covers. (Refer to 9 -
ENGINE/CYLINDER HEAD/CYLINDER HEAD
COVER(S) - REMOVAL)
(5) Remove the spark plugs from cylinder head.
(6) Remove the dipstick and tube (Fig. 16).
(7) Remove exhaust manifold(s). (Refer to 9 -
ENGINE/MANIFOLDS/EXHAUST MANIFOLD -
REMOVAL)
(8) Remove rocker arm and shaft assemblies.(Refer
to 9 - ENGINE/CYLINDER HEAD/ROCKER ARMS -
REMOVAL) Remove push rods andmark positions
to ensure installation in original locations.
(9) Remove the eight head bolts from each cylinder
head and remove cylinder heads (Fig. 20).
CLEANING
To ensure engine gasket sealing, proper surface
preparation must be performed, especially with the
use of aluminum engine components and multi-layer
steel cylinder head gaskets.
NOTE: Multi-Layer Steel (MLS) head gaskets require
a scratch free sealing surface.
Remove all gasket material from cylinder head and
block. (Refer to 9 - ENGINE - STANDARD PROCE-
Fig. 16 DIPSTICK & TUBE
1 - DIPSTICK
2 - BOLT
3 - TUBE
RSENGINE 3.3/3.8L9-95
CYLINDER HEAD (Continued)

(9) Install the cylinder head covers. (Refer to 9 -
ENGINE/CYLINDER HEAD/CYLINDER HEAD
COVER(S) - INSTALLATION)
(10) Install the exhaust manifolds. (Refer to 9 -
ENGINE/MANIFOLDS/EXHAUST MANIFOLD -
INSTALLATION)
(11) Install new O-ring on dipstick tube. Install
dipstick tube assembly (Fig. 16).
(12) Install the spark plugs.
(13) Install upper and lower intake manifolds.
(Refer to 9 - ENGINE/MANIFOLDS/INTAKE MANI-
FOLD - INSTALLATION)
(14) Fill the cooling system. (Refer to 7 - COOL-
ING - STANDARD PROCEDURE)
(15) Connect negative cable to battery.
CYLINDER HEAD COVER(S)
DESCRIPTION
The cylinder head covers are made of stamped
steel. The covers are sealed with steel reinforced sil-
icon rubber gaskets. The cylinder head cover uses
rubber isolators at each fastener location (Fig. 21).
NOTE: Due to the tight packaging near the cylinder
head covers, which makes spill clean-up difficult, a
spill during an engine oil change may be misinter-
preted as an oil leak. When investigating an oil leak
in the location of the cylinder head covers and
intake manifold, follow the procedure found in Oil
Leak Diagnosis (Refer to 9 - ENGINE - DIAGNOSIS
AND TESTING) for determining the source of a leak.
CYLINDER HEAD COVER -
RIGHT
REMOVAL
(1) Disconnect negative cable from battery.
(2) Remove the wiper module. (Refer to 8 - ELEC-
TRICAL/WIPERS/WASHERS/WIPER MODULE -
REMOVAL)
(3) Disconnect spark plug wires from plugs.(4) Disconnect power steering pump supply hose
support clip from cylinder head cover (Fig. 22).
(5) Disconnect PCV hose from cylinder head cover
(Fig. 23).
(6) Remove cylinder head cover bolts.
(7) Remove cylinder head cover and gasket (Fig.
21).
Fig. 20 CYLINDER HEAD TIGHTENING SEQUENCE
Fig. 21 Cylinder Head Cover
1 - CYLINDER HEAD COVER
2 - BOLT
Fig. 22 P/S Supply Hose
1 - POWER STEERING RESERVOIR
2 - CLAMP
3 - SUPPLY HOSE
4 - CLIP
5 - POWER STEERING PUMP
RSENGINE 3.3/3.8L9-97
CYLINDER HEAD (Continued)

INSTALLATION - CRANKSHAFT MAIN
BEARINGS
NOTE: One main bearing should be selectively fit-
ted while all other main bearing caps are properly
tightened.
(1) For main bearing fitting procedure, (Refer to 9
- ENGINE/ENGINE BLOCK/CRANKSHAFT MAIN
BEARINGS - STANDARD PROCEDURE)
(2) Start bearing in place, and insert Main Bearing
Tool C-3059 into oil hole of crankshaft (Fig. 60).
(3) Slowly rotate crankshaft counterclockwise slid-
ing the bearing into position. Remove Special Main
Bearing Tool C-3059.
(4) Inspect main cap bolts for stretching (Fig. 61).
Replace bolts that are stretched.
NOTE: The main cap bolts should be examined
before reuse. Bolt stretch can be checked by hold-
ing a scale or straight edge against the threads. If
all the threads do not contact the scale the bolt
must be replaced (Fig. 61).
(5) Install each main cap and tighten bolts finger
tight.
(6) Tighten number 1, 3 and 4 main cap bolts to 41
N´m + 1/4 Turn (30 ft. lbs.+ 1/4 Turn).
(7) Rotate the crankshaft until the number 6 pis-
ton is at TDC.
(8) To ensure correct thrust bearing alignment the
following procedure must be done:
²Move crankshaft all the way to the rear of its
travel.
²Then, move crankshaft all the way to the front
of its travel.
²Wedge an appropriate tool between the rear of
the cylinder block and rear crankshaft counter-
weight. This will hold the crankshaft in it's most for-
ward position.²Tighten the #2 Thrust Bearing cap bolts to 41
N´m + 1/4 Turn (30 ft. lbs.+ 1/4 Turn). Remove the
holding tool.
(9) Install oil pan. (Refer to 9 - ENGINE/LUBRI-
CATION/OIL PAN - INSTALLATION)
(10) Fill engine crankcase with proper oil to cor-
rect level.
CRANKSHAFT OIL SEAL -
FRONT
REMOVAL
(1) Disconnect negative cable from battery.
(2) Raise vehicle on hoist. Remove right wheel and
inner splash shield.
(3) Remove accessory drive belt. (Refer to 7 -
COOLING/ACCESSORY DRIVE/DRIVE BELTS -
REMOVAL)
(4) Remove crankshaft damper. (Refer to 9 -
ENGINE/ENGINE BLOCK/VIBRATION DAMPER -
REMOVAL)
(5) Position Special Tool 6341A on crankshaft nose.
Carefully screw the tool into the seal until it engages
firmly (Fig. 62). Be careful not to damage that crank-
shaft seal surface of cover
(6) Remove oil seal by turning the forcing screw
until the seal disengages from the cover (Fig. 63).
INSTALLATION
(1) Position Special Tool C-4992-2 Guide, on the
crankshaft nose (Fig. 64).
(2) Position new seal over the guide with the seal
spring in the direction of the engine front cover (Fig.
64).
Fig. 61 Check for Stretched (Necked) Bolts
1 - STRETCHED BOLT
2 - THREADS ARE NOT STRAIGHT ON LINE
3 - THREADS ARE STRAIGHT ON LINE
4 - UNSTRETCHED BOLT
Fig. 62 Engaging Tool into Seal
1 - SEAL
2 - SPECIAL TOOL 6341A
RSENGINE 3.3/3.8L9 - 115
CRANKSHAFT MAIN BEARINGS (Continued)

VIBRATION DAMPER
REMOVAL
(1) Disconnect negative cable from battery.
(2) Raise vehicle on hoist.
(3) Remove the right front wheel and inner splash
shield.
(4) Remove the accessory drive belt. (Refer to 7 -
COOLING/ACCESSORY DRIVE/DRIVE BELTS -
REMOVAL)(5) Remove vibration damper bolt.
(6) Insert Special Tool 8450 into crankshaft nose
(Fig. 87).
(7) Position 3-jaw puller Special Tool 1026 on
damper as shown in (Fig. 87). Turn puller forcing
screw until damper releases from crankshaft.
(8) Remove the crankshaft vibration damper.
INSTALLATION
(1) Install crankshaft vibration damper using Spe-
cial Tool 8451 with thrust bearing/washer (Fig. 88).
NOTE: To minimize friction and prolong tool life,
lubricate the threads on the forcing screw of Spe-
cial Tool 8451.
(2) Position vibration damper on crankshaft.
(3) Screw Special Tool 8451 into crankshaft until
the bolt seats. Turn the nut to install damper until it
seats fully.
(4) Remove Special Tool 8451.
(5) Install the accessory drive belt. (Refer to 7 -
COOLING/ACCESSORY DRIVE/DRIVE BELTS -
INSTALLATION)
(6) Install inner splash shield and right front
wheel.
(7) Connect negative cable to battery.
Fig. 85 Piston Ring Installation
Fig. 86 Piston Ring End Gap Position
1 - GAP OF LOWER SIDE RAIL
2 - NO. 1 RING GAP
3 - GAP OF UPPER SIDE RAIL
4 - NO. 2 RING GAP AND SPACER EXPANDER GAP
Fig. 87 Vibration Damper - Removal
1 - SPECIAL TOOL 8450 - INSERT
2 - SPECIAL TOOL 1026-3JAWPULLER
9 - 126 ENGINE 3.3/3.8LRS
PISTON RINGS (Continued)

OIL COOLER & LINES
DESCRIPTION
An engine oil cooler is used on 3.3/3.8L engines
(Heavy Duty Cooling Only) (Fig. 102). 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)
(2) Disconnect oil cooler inlet and outlet hoses
(Fig. 103).
(3) Remove oil filter.
(4) Remove oil cooler connector (Fig. 104).
(5) Remove oil cooler.
INSTALLATION
(1) Lubricate seal and position oil cooler to fitting
on oil filter adapter (Fig. 104).NOTE: Position the flat side of oil cooler parallel to
oil pan rail.
(2) Install oil cooler connector and tighten to 27
N´m (20 ft. lbs.) (Fig. 104).
Fig. 101 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. 102 Engine Oil CoolerÐ3.3/3.8L (Heavy Duty
Cooling)
1 - OIL FILTER ADAPTOR
2 - CONNECTOR
3 - ENGINE OIL COOLER
4 - FITTING
5 - OIL FILTER
9 - 134 ENGINE 3.3/3.8LRS
OIL (Continued)

(3) Install oil filter.
(4) Connect oil cooler inlet and outlet hoses (Fig.
103).
(5) Fill cooling system.
OIL FILTER
REMOVAL
CAUTION: When servicing the oil filter avoid
deforming the filter can by installing the remove/in-
stall tool band strap against the can-to-base lock
seam. The lock seam joining the can to the base is
reinforced by the base plate.
(1) Using suitable oil filter wrench, turn filter
counterclockwise to remove from oil filter adapter
(Fig. 105). Properly discard used oil filter.
INSTALLATION
(1) Wipe oil filter adapter base clean and inspect
gasket contact surface.
(2) Lubricate gasket of new filter with clean
engine oil.
(3) Install new filter until gasket contacts base
(Fig. 105). Tighten filter 1 turn or 20 N´m (15 ft.
lbs.). Use filter wrench if necessary.
(4) Start engine and check for leaks.
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.
Fig. 103 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
Fig. 104 Engine Oil Cooler
1 - OIL FILTER ADAPTOR
2 - CONNECTOR
3 - ENGINE OIL COOLER
4 - FITTING
5 - OIL FILTER
RSENGINE 3.3/3.8L9 - 135
OIL COOLER & LINES (Continued)