wheel CHRYSLER CARAVAN 2002 Service Manual

(2) Raise transaxle with jack until left mount is in
position.
(3) Install left mount through bolt (Fig. 80).
(4) Install left mount through bolt access cover.
(5) Install front mount through bolt (Fig. 79).
(6) Install left front wheel.
(7) Lower vehicle.
REAR MOUNT
REMOVAL
(1) Raise vehicle on hoist.
(2) Remove the rear mount heat shield (Fig. 83).
(3) Remove the through bolt from the mount and
rear mount bracket (Fig. 84).
(4) Remove the mount bolts (Fig. 84).
(5) Remove the rear mount (Fig. 84).
(6) For rear mount bracket removal, remove the
bolts attaching bracket to transaxle (Fig. 85).
(7) Remove rear mount bracket.
INSTALLATION
(1) Install rear mount bracket, if removed (Fig.
85).
(2) Install the rear mount and bolts (Fig. 84).
Tighten bolts to 54 N´m (40 ft. lbs.).
(3) Install the mount through bolt to the mount
and bracket (Fig. 84). Tighten through bolt to 54 N´m
(40 ft. lbs.).
(4) Install the rear mount heat shield (Fig. 83).
(5) Lower vehicle on hoist.
Fig. 82 UNDER CONSTRUCTION
1 - LEFT MOUNT ASSEMBLY
2 - BOLT - 54 N´m (40 ft. lbs.)
3 - TRANSAXLE - 41TE
Fig. 83 REAR MOUNT HEAT SHIELD
1 - BOLT - HEAT SHIELD 11 N´m (100 in. lbs.)
2 - HEAT SHIELD
3 - CLIP
4 - REAR MOUNT
Fig. 84 REAR MOUNT
1 - BOLT 54 N´m (40 ft. lbs.)
2 - REAR MOUNT BRACKET
3 - THRU-BOLT 54 N´m (40 ft. lbs.)
4 - REAR MOUNT
RSENGINE 2.4L9-51
LEFT MOUNT (Continued)
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(3) Install crankshaft vibration damper. (Refer to 9
- ENGINE/ENGINE BLOCK/VIBRATION DAMPER -
INSTALLATION)
TIMING BELT AND
SPROCKET(S)
REMOVAL
REMOVAL - TIMING BELT
(1) Remove air cleaner upper cover, housing, and
clean air tube.
(2) Remove make-up air hose from cylinder head
cover.
(3) Raise vehicle on hoist.
(4) Remove right front wheel.
(5) Remove right inner splash shield.
(6) Remove accessory drive belts. (Refer to 7 -
COOLING/ACCESSORY DRIVE/BELT TENSION-
ERS - REMOVAL)
Fig. 113 ENGINE FRONT MOUNT BRACKET
1 - ENGINE MOUNT BRACKET
2 - BOLTS - 61 N´m (45 ft. lbs.)
Fig. 114 Camshaft Sprocket - Removal/Installation
1 - SPECIAL TOOL 6847
Fig. 115 Timing Belt Rear Cover
1 - BOLTS - REAR COVER 12 N´m (105 in. lbs.)
2 - BOLTS - REAR COVER 28 N´m (250 in. lbs.)
3 - TIMING BELT TENSIONER
9 - 64 ENGINE 2.4LRS
TIMING BELT COVER(S) (Continued)
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(5) Remove the pull pin or Allen wrench from the
belt tensioner.
(6) Once the timing belt has been installed and
tensioner released, rotate the crankshaft two (2) com-
plete revolutions. Verify that the TDC marks on
crankshaft and timing marks on the camshafts are
aligned as shown in (Fig. 123).
(7) Install engine mount bracket to engine (Fig.
116).
(8) Install timing belt front covers and bolts.
(Refer to 9 - ENGINE/VALVE TIMING/TIMING
BELT / CHAIN COVER(S) - INSTALLATION)
(9) Install air conditioning/generator belt tensioner
and pulley. (Refer to 7 - COOLING/ACCESSORY
DRIVE/BELT TENSIONERS - INSTALLATION)
(10) Install right engine mount. (Refer to 9 -
ENGINE/ENGINE MOUNTING/RIGHT MOUNT -
INSTALLATION)(11) Install crankshaft vibration damper. (Refer to
9 - ENGINE/ENGINE BLOCK/VIBRATION
DAMPER - INSTALLATION)
(12) Install accessory drive belts. (Refer to 7 -
COOLING/ACCESSORY DRIVE/DRIVE BELTS -
INSTALLATION)
(13) Install drive belt splash shield.
(14) Install right front wheel.
(15) Connect make-up air hose to cylinder head
cover.
(16) Install air cleaner housing, upper cover, and
clean air tube.
TIMING BELT TENSIONER &
PULLEY
REMOVAL
(1) Remove the timing belt (Refer to 9 - ENGINE/
VALVE TIMING/TIMING BELT AND SPROCKETS -
REMOVAL).
(2) Remove timing belt idler pulley.
(3) Hold camshaft sprocket with Special Tool 6847
while removing bolt (Fig. 124). Remove both cam
sprockets.
Fig. 123 Crankshaft and Camshaft Timing
1 - CAMSHAFT TIMING MARKS
2 - CRANKSHAFT TDC MARKS
3 - TRAILING EDGE OF SPROCKET TOOTH
Fig. 124 Camshaft Sprocket - Removal/Installation
1 - SPECIAL TOOL 6847
9 - 68 ENGINE 2.4LRS
TIMING BELT AND SPROCKET(S) (Continued)
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OIL PUMP
DESCRIPTION........................143
REMOVAL............................143
DISASSEMBLY........................144
CLEANING...........................144
INSPECTION.........................144
ASSEMBLY...........................146
INSTALLATION........................146
INTAKE MANIFOLD
DESCRIPTION........................146
OPERATION..........................146
DIAGNOSIS AND TESTING - INTAKE
MANIFOLD LEAKS....................146
INTAKE MANIFOLD - UPPER
STANDARD PROCEDURE
STANDARD PROCEDURE - MANIFOLD
STRIPPED THREAD REPAIR............146
STANDARD PROCEDURE - INTAKE
MANIFOLD VACUUM PORT REPAIR......147
REMOVAL - UPPER INTAKE MANIFOLD.....147
CLEANING...........................148
INSPECTION.........................149
INSTALLATION - UPPER INTAKE
MANIFOLD..........................149
INTAKE MANIFOLD - LOWER
REMOVAL - LOWER INTAKE MANIFOLD....150
CLEANING...........................150
INSPECTION.........................150
INSTALLATION - LOWER INTAKE MANIFOLD . 150
EXHAUST MANIFOLD
DESCRIPTION........................152OPERATION..........................152
EXHAUST MANIFOLD - RIGHT
REMOVAL............................152
CLEANING...........................152
INSPECTION.........................153
INSTALLATION........................153
EXHAUST MANIFOLD - LEFT
REMOVAL............................154
CLEANING...........................154
INSPECTION.........................154
INSTALLATION........................154
VALVE TIMING
STANDARD PROCEDURE
STANDARD PROCEDURE - VALVE TIMING
VERIFICATION.......................155
STANDARD PROCEDURE - MEASURING
TIMING CHAIN WEAR.................155
TIMING CHAIN COVER
REMOVAL............................155
INSTALLATION........................156
TIMING CHAIN AND SPROCKETS
REMOVAL
REMOVAL - TIMING CHAIN AND
CAMSHAFT SPROCKET...............159
REMOVAL - CRANKSHAFT SPROCKET . . . 159
INSTALLATION
INSTALLATION - CRANKSHAFT
SPROCKET.........................159
INSTALLATION - TIMING CHAIN AND
CAMSHAFT SPROCKET...............159
ENGINE 3.3/3.8L
DESCRIPTION
The 3.3 Liter (201 cu. in.) and 3.8 Liter (231 cu.
in.) engines are 60É V-6 engines with cast iron cylin-
der blocks and aluminum cylinder heads (Fig. 1). The
engine uses a single, block mounted camshaft with
pushrods to actuate the valves. These engines do not
have provisions for a free wheeling valve train.The firing order is 1±2±3±4±5±6. The cylinders are
numbered from the front of the engine to the rear.
The front cylinder bank is numbered 2, 4, and 6. The
rear cylinder bank is numbered 1, 3, and 5.
The engine identification number is located on the
rear of the cylinder block just below the cylinder
head (Fig. 2).
9 - 76 ENGINE 3.3/3.8LRS
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CONDITION POSSIBLE CAUSES CORRECTION
MAIN BEARING NOISE 1. Insufficient oil supply. 1. Check engine oil level.
2. Low oil pressure. 2. Check engine oil level. Inspect oil
pump relief valve and spring.
3. Thin or diluted oil. 3. Change oil to correct viscosity.
4. Thick oil 4. (a) Change engine oil and filter.
(b) Run engine to operating
temperature.
(c) Change engine oil and filter
again.
5. Excessive bearing clearance. 5. Measure bearings for correct
clearance. Repair as necessary.
6. Excessive end play. 6. Check thrust bearing for wear on
flanges.
7. Crankshaft journal out-of-round
or worn.7. Replace crankshaft or grind
journals.
8. Loose flywheel or torque
converter.8. Tighten to correct torque.
OIL PRESSURE DROP 1. Low oil level. 1. Check engine oil level.
2. Faulty oil pressure sensor/switch. 2. Replace oil pressure sensor/
switch.
3. Low oil pressure. 3. Check oil pressure sensor/switch
and main bearing oil clearance.
4. Clogged oil filter. 4. Install new oil filter.
5. Worn parts in oil pump. 5. Replace worn parts or pump.
6. Thin or diluted oil. 6. Change oil to correct viscosity.
7. Oil pump relief valve stuck. 7. Remove valve and inspect, clean,
or replace.
8. Oil pump suction tube loose. 8. Remove oil pan and install new
tube or clean, if necessary.
9. Oil pump cover warped or
cracked.9. Install new oil pump.
10. Excessive bearing clearance. 10. Measure bearings for correct
clearance.
OIL LEAKS 1. Misaligned or deteriorated
gaskets.1. Replace gasket(s).
2. Loose fastener, broken or porous
metal part.2. Tighten, repair or replace the
part.
3. Misaligned or deteriorated cup or
threaded plug.3. Replace as necessary.
RSENGINE 3.3/3.8L9-81
ENGINE 3.3/3.8L (Continued)
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DESCRIPTION - 3.8L
The nodular iron crankshaft is supported by four
main bearings, with number two position providing
thrust bearing location (Fig. 52). Each main bearing
cap has two vertical retaining bolts. The two center
main caps have horizontal bolts to add increased
rigidity to the lower engine block (Fig. 52). Crank-
shaft end sealing is provided by front and rear rub-
ber seals.
OPERATION
The crankshaft transfers force generated by com-
bustion within the cylinder to the flywheel or flex-
plate.
STANDARD PROCEDURE - MEASURING
CRANKSHAFT END PLAY
(1) Mount a dial indicator to front of engine with
the locating probe on nose of crankshaft (Fig. 53).
(2) Move crankshaft all the way to the rear of its
travel.
(3) Zero the dial indicator.
(4) Move crankshaft all the way to the front and
read the dial indicator. (Refer to 9 - ENGINE -
SPECIFICATIONS) for end play specification.
REMOVAL
(1) Remove the engine assembly. (Refer to 9 -
ENGINE - REMOVAL)
(2) Separate transaxle from engine.
(3) Mount engine on an engine stand.
(4) Remove the oil filter.
(5) Remove the oil pan and oil pick-up tube. (Refer
to 9 - ENGINE/LUBRICATION/OIL PAN -
REMOVAL)
(6) Remove the timing chain cover. (Refer to 9 -
ENGINE/VALVE TIMING/TIMING BELT / CHAIN
COVER(S) - REMOVAL)
(7) Remove timing chain and sprockets. (Refer to 9
- ENGINE/VALVE TIMING/TIMING BELT/CHAIN
AND SPROCKETS - REMOVAL)
(8) Remove crankshaft rear oil seal and retainer.
(Refer to 9 - ENGINE/ENGINE BLOCK/CRANK-
SHAFT OIL SEAL - REAR - REMOVAL)
(9) Rotate the crankshaft until connecting rod cap
is accessible.
(10) Mark connecting rod cap position using a suit-
able marker/scribe tool.
(11) Remove connecting rod bearing cap. Use care
to prevent damage to the crankshaft bearing sur-
faces.
(12) Repeat removal procedure for each connecting
rod cap.
Fig. 52 CRANKSHAFT AND BLOCK - 3.8L
1 - MAIN BEARING CAP No. 4
2 - MAIN BEARING CAP No. 3
3 - MAIN BEARING CAP No. 2
4 - MAIN BEARING CAP BOLT
5 - MAIN BEARING CAP No. 1
6 - THRUST MAIN BEARING - LOWER
7 - THRUST MAIN BEARING - UPPER
8 - MAIN BEARING CAP CROSS BOLT
9 - ENGINE BLOCK
10 - MAIN BEARING - UPPER
11 - CRANKSHAFT
12 - MAIN BEARING - LOWER
Fig. 53 Checking Crankshaft End PlayÐTypical
RSENGINE 3.3/3.8L9 - 117
CRANKSHAFT (Continued)
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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. 63).
(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:
a. Move crankshaft all the way to the rear of its
travel.
b. Then, move crankshaft all the way to the front
of its travel.
c. Wedge 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.
d. Tighten 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. 64). 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. 65).
Fig. 63 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. 64 Engaging Tool into Seal
1 - SEAL
2 - SPECIAL TOOL 6341A
Fig. 65 Crankshaft Front Seal Removal
1 - SEAL
2 - SPECIAL TOOL 6341A
9 - 122 ENGINE 3.3/3.8LRS
CRANKSHAFT MAIN BEARINGS (Continued)
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INSTALLATION
(1) Position Special Tool C-4992-2 Guide, on the
crankshaft nose (Fig. 66).
(2) Position new seal over the guide with the seal
spring in the direction of the engine front cover (Fig.
66).
(3) Install seal using Special Tool C-4992-1 until
seal is flush with cover. (Fig. 66).
(4) Install crankshaft damper. (Refer to 9 -
ENGINE/ENGINE BLOCK/VIBRATION DAMPER -
INSTALLATION)
(5) Install accessory drive belt. (Refer to 7 - COOL-
ING/ACCESSORY DRIVE/DRIVE BELTS - INSTAL-
LATION)
(6) Install inner splash shield and right front
wheel.
(7) Lower vehicle and connect negative cable to
battery.
CRANKSHAFT OIL SEAL -
REAR
REMOVAL
(1) Remove the transaxle. Refer to TRANSAXLE
AND POWER TRANSFER UNIT for procedure.
(2) Remove the flex plate. (Refer to 9 - ENGINE/
ENGINE BLOCK/FLEX PLATE - REMOVAL)
(3) Insert a 3/16 flat bladed pry tool between the
dust lip and the metal case of the crankshaft seal.
Angle the pry tool (Fig. 67) through the dust lip
against metal case of the seal. Pry out seal.CAUTION: Do not permit the pry tool blade to con-
tact crankshaft seal surface. Contact of the pry tool
blade against crankshaft edge (chamfer) is permit-
ted.
INSTALLATION
CAUTION: If burr or scratch is present on the
crankshaft edge (chamfer), cleanup with 400 grit
sand paper to prevent seal damage during installa-
tion of new seal.
(1) Place Special Tool 6926-1 magnetic pilot tool on
crankshaft (Fig. 68).
(2) Place seal over Special Tool 6926-1 Pilot. Using
Special Tool 6926-2 Installer with C-4171 Handle,
drive seal into the retainer housing (Fig. 68).
(3) Install the flex plate. (Refer to 9 - ENGINE/
ENGINE BLOCK/FLEX PLATE - INSTALLATION)
(4) Install transaxle. Refer to TRANSAXLE AND
POWER TRANSFER UNIT for procedure.
Fig. 66 CRANKSHAFT FRONT SEAL INSTALLATION
1 - SPECIAL TOOL C-4992-1
2 - SEAL
3 - SPECIAL TOOL C-4992-2
4 - CRANKSHAFTFig. 67 Crankshaft Rear Oil Seal - Removal
1 - REAR CRANKSHAFT SEAL
2 - ENGINE BLOCK
3 - ENGINE BLOCK
4 - REAR CRANKSHAFT SEAL METAL CASE
5 - PRY IN THIS DIRECTION
6 - CRANKSHAFT
7 - SCREWDRIVER
8 - REAR CRANKSHAFT SEAL DUST LIP
9 - SCREWDRIVER
RSENGINE 3.3/3.8L9 - 123
CRANKSHAFT OIL SEAL - FRONT (Continued)
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(4) Install No. 2 piston ring and then No. 1 piston
ring (Fig. 87).
(5) Position piston ring end gaps as shown in (Fig.
88).
(6) Position oil ring expander gap at least 45É
from the side rail gaps butnoton the piston pin cen-
ter or on the thrust direction. Staggering ring gap is
important for oil control.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. 89).
(7) Position 3-jaw puller Special Tool 1026 on
damper as shown in (Fig. 89). Turn puller forcing
screw until damper releases from crankshaft.
(8) Remove the crankshaft vibration damper.
INSTALLATION
(1) Install crankshaft vibration damper using the
forcing screw, nut, and thrust bearing/washer from
Special Tool 8452 (Fig. 90).
NOTE: To minimize friction and prolong tool life,
lubricate the threads on the forcing screw of Spe-
cial Tool 8452.
(2) Position vibration damper on crankshaft.
(3) Screw Special Tool 8452 into crankshaft until
the bolt seats. Turn the nut to install damper until it
seats fully.
(4) Remove Special Tool 8452.
(5) Install vibration damper bolt. Torque bolt to 54
N´m (40 ft. lbs.).
Fig. 87 Piston Ring Installation
Fig. 88 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. 89 Vibration Damper - Removal
1 - SPECIAL TOOL 8450 - INSERT
2 - SPECIAL TOOL 1026-3JAWPULLER
9 - 132 ENGINE 3.3/3.8LRS
PISTON RINGS (Continued)
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(6) Install the accessory drive belt. (Refer to 7 -
COOLING/ACCESSORY DRIVE/DRIVE BELTS -
INSTALLATION)
(7) Install inner splash shield and right front
wheel.
(8) Connect negative cable to battery.
ENGINE MOUNTING
DESCRIPTION
The engine mounting system consist of four
mounts; right and a left side support the powertrain,
and a front and a rear mount control powertrain
torque. The right side mount is a hydro-type (Fig.
91), all others are of molded rubber material.
FRONT MOUNT
REMOVAL
(1) Support the engine and transmission assembly
with a floor jack so it will not rotate.
(2) Remove the front engine mount through bolt
from the insulator and front crossmember mounting
bracket (Fig. 92).
(3) Remove six screws from air dam to allow
access to the front mount screws.
(4) Remove the front engine mount screws and
remove the insulator assembly (Fig. 92).
(5) Remove the front mounting bracket, if neces-
sary (Fig. 92).
INSTALLATION
(1) Install the front mounting bracket, if removed
(Fig. 92).
(2) Install the front engine mount through bolt
from the insulator and front crossmember mounting
bracket (Fig. 92).
(3) Install the insulator assembly and mounting
screws (Fig. 92).
Fig. 90 Vibration Damper - Installation
1 - FORCING SCREW / NUT FROM SPECIAL TOOL 8452
2 - VIBRATION DAMPER
3 - THRUST BEARING / WASHER
Fig. 91 Engine Hydro-type Mount - Right Side
1 - BOLT
2 - BOLT
3 - FRAME RAIL
4 - RIGHT MOUNT - 2.4L ENGINE
5 - RIGHT MOUNT - 3.3/3.8L ENGINE
RSENGINE 3.3/3.8L9 - 133
VIBRATION DAMPER (Continued)
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