engine CHRYSLER VOYAGER 2003 Service Manual

OIL PUMP
REMOVAL
(1) Disconnect negative cable from battery.
(2) Remove timing belt (Refer to 9 - ENGINE/
VALVE TIMING/TIMING BELT AND SPROCKETS -
REMOVAL).
(3) Remove timing belt rear cover (Refer to 9 -
ENGINE/VALVE TIMING/TIMING BELT COVER(S)
- REMOVAL).
(4) Remove oil pan (Refer to 9 - ENGINE/LUBRI-
CATION/OIL PAN - REMOVAL).
(5) Remove crankshaft sprocket using Special
Tools 6793 and C-4685-C2 (Fig. 90).
(6) Remove crankshaft key (Fig. 91).
(7) Remove oil pick-up tube.(8) Remove oil pump (Fig. 92) and front crankshaft
seal.
DISASSEMBLY
(1) To remove the relief valve, proceed as follows:
(a) Remove the threaded plug and gasket from
the oil pump (Fig. 93) .
(b) Remove spring and relief valve (Fig. 93) .
Fig. 90 Crankshaft Sprocket - Removal
1 - SPECIAL TOOL 6793
2 - SPECIAL TOOL C-4685±C2
3 - CRANKSHAFT SPROCKET
Fig. 91 Crankshaft Key
1 - CRANKSHAFT KEY
Fig. 92 Oil Pump
1 - BOLTS
2 - BOLTS
3 - OIL PUMP
Fig. 93 Oil Pressure Relief Valve
1 - PLUG
2 - OIL PUMP BODY
3 - RELIEF VALVE
4 - SPRING
5 - SEAL
RSENGINE 2.4L9-55
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(2) Remove oil pump cover fasteners, and lift off
cover (Fig. 94) .
(3) Remove pump rotors (Fig. 94) .
(4) Wash all parts in a suitable solvent and
inspect carefully for damage or wear.
CLEANING
(1) Clean all parts thoroughly in a suitable sol-
vent.
INSPECTION
(1) Inspect the mating surfaces of the oil pump
cover. Surface should be smooth. Replace pump cover
if scratched or grooved.
(2) Lay a straightedge across the pump cover sur-
face (Fig. 95). If a 0.025 mm (0.001 in.) feeler gauge
can be inserted between cover and straight edge,
cover should be replaced.
(3) Measure thickness and diameter of outer rotor.
If outer rotor thickness measures 9.40 mm (0.370 in.)
or less (Fig. 96), or if the diameter is 79.95 mm
(3.148 in.) or less, replace outer rotor.
(4) If inner rotor measures 9.40 mm (0.370 in.) or
less replace inner rotor (Fig. 97).
ASSEMBLY
(1) Assemble pump, using new parts as required.
Install the inner rotor with chamfer facing the
cast iron oil pump cover.
(2) Prime oil pump before installation by filling
rotor cavity with engine oil.
(3) Install cover and tighten fasteners to 12 N´m
(105 in. lbs.) (Fig. 94).
Fig. 94 Oil Pump
1 - O-RING
2 - SEAL
3 - INNER ROTOR
4 - OIL PUMP COVER
5 - FASTENER
6 - OUTER ROTOR
7 - OIL PUMP BODY
Fig. 95 Checking Oil Pump Cover Flatness
1 - STRAIGHT EDGE
2 - FEELER GAUGE
3 - OIL PUMP COVER
Fig. 96 Measuring Outer Rotor Thickness
Fig. 97 Measuring Inner Rotor Thickness
9 - 56 ENGINE 2.4LRS
OIL PUMP (Continued)
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CAUTION: Oil pump pressure relief valve must be
installed as shown in (Fig. 93) or serious engine
damage may occur.
(4) Install relief valve, spring, gasket and cap as
shown in (Fig. 93). Tighten cap to 41 N´m (30 ft.
lbs.).
INSTALLATION
(1) Make sure all surfaces are clean and free of oil
and dirt.
(2) Apply MopartGasket Maker to oil pump as
shown in (Fig. 98). Install O-ring into oil pump body
discharge passage.
(3) Prime oil pump with engine oil before installa-
tion.
(4) Align oil pump rotor flats with flats on crank-
shaft. Install the oil pump to the block (Fig. 92).
CAUTION: To align, the front crankshaft seal MUST
be out of pump, or damage may result.
(5) Install new front crankshaft seal using Special
Tool 6780 (Fig. 99).
(6) Install crankshaft key (Fig. 91).
CAUTION: The crankshaft sprocket is set to a pre-
determined depth from the factory for correct tim-
ing belt tracking. If removed, use of Special Tool
6792 is required to set the sprocket to original
installation depth. An incorrectly installed sprocket
will result in timing belt and engine damage.
(7) Install crankshaft sprocket using Special Tool
6792 (Fig. 100).
(8) Install oil pump pick-up tube.
(9) Install oil pan (Refer to 9 - ENGINE/LUBRI-
CATION/OIL PAN - INSTALLATION).(10) Install timing belt rear cover (Refer to 9 -
ENGINE/VALVE TIMING/TIMING BELT COVER(S)
- INSTALLATION).
(11) Install timing belt (Refer to 9 - ENGINE/
VALVE TIMING/TIMING BELT AND SPROCKETS -
INSTALLATION).
Fig. 98 Oil Pump Sealing
1 - O-RING
2 - SEALER LOCATION
Fig. 99 Front Crankshaft Seal - Installation
1 - PROTECTOR
2 - SEAL
3 - SPECIAL TOOL 6780
Fig. 100 Crankshaft Sprocket - Installation
1 - SPECIAL TOOL 6792
2 - TIGHTEN NUT TO INSTALL
RSENGINE 2.4L9-57
OIL PUMP (Continued)
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INTAKE MANIFOLD
DESCRIPTION
The intake manifold is a two piece aluminum cast-
ing (Fig. 101) that attaches to the cylinder head with
fasteners. The manifold is a long branch design to
enhance low and mid-range torque
DIAGNOSIS AND TESTING - INTAKE
MANIFOLD LEAKS
An intake manifold air leak is characterized by
lower than normal manifold vacuum. Also, one or
more cylinders may not be functioning.
WARNING: USE EXTREME CAUTION WHEN THE
ENGINE IS OPERATING. DO NOT STAND IN A
DIRECT LINE WITH THE FAN. DO NOT PUT YOUR
HANDS NEAR THE PULLEYS, BELTS OR THE FAN.
DO NOT WEAR LOOSE CLOTHING.
(1) Start the engine.
(2) Spray a small stream of water (Spray Bottle) at
the suspected leak area.
(3) If engine RPM'S change, the area of the sus-
pected leak has been found.
(4) Repair as required.
INTAKE MANIFOLD - UPPER
REMOVAL
(1) Disconnect negative cable from battery.
(2) Disconnect connector from inlet air tempera-
ture sensor (Fig. 102).
(3) Disconnect air intake tube at throttle body and
remove upper air cleaner housing.
(4) Disconnect connector from throttle position
sensor (TPS) (Fig. 104).
(5) Disconnect connector from idle air control (IAC)
motor (Fig. 104).
(6)
Disconnect connector from MAP sensor (Fig. 103).
(7) Remove vacuum lines for purge solenoid and
PCV valve at intake manifold.
(8) Remove vacuum lines for power brake booster,
LDP, EGR transducer, and speed control vacuum res-
ervoir (if equipped) at upper intake manifold fittings.
Fig. 101 Intake Manifold - Upper and Lower
1 - UPPER INTAKE MANIFOLD
2 - LOWER INTAKE MANIFOLD
Fig. 102 INLET AIR TEMPERATURE SENSOR - 2.4L
Fig. 103 MAP SENSOR - 2.4L
1 - MAP SENSOR
9 - 58 ENGINE 2.4LRS
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(9) Disconnect throttle and speed control (if
equipped) cables from throttle lever and bracket.
(Refer to 14 - FUEL SYSTEM/FUEL INJECTION/
THROTTLE CONTROL CABLE - REMOVAL)
(10) Remove the EGR tube. (Refer to 25 - EMIS-
SIONS CONTROL/EXHAUST GAS RECIRCULA-
TION/TUBE - REMOVAL)
(11) Remove the upper manifold support bracket
bolt to manifold (Fig. 105).
(12) Remove engine oil dipstick from tube.
(13) Remove upper intake manifold bolts (Fig.
106). Remove upper intake manifold.
CAUTION: Cover intake manifold to prevent foreign
material from entering engine.
INSPECTION
(1) Check manifold surfaces for flatness with
straight edge. Surface must be flat within 0.15 mm
per 300 mm (0.006 in. per foot) of manifold length.
(2) Inspect manifold for cracks or distortion.
Replace manifold if necessary.
INSTALLATION
(1) Clean manifold sealing surfaces.
(2) Apply a 1.5 mm (0.060 in.) bead MopartGas-
ket Maker to the perimeter of the lower intake man-
ifold runner openings.
(3) Install upper intake manifold and tighten fas-
teners to 28 N´m (250 in. lbs.) in sequence shown in
(Fig. 106). Repeat this procedures until all fasteners
are at specified torque.
(4) Install engine oil dipstick.
(5) Install upper bolt in intake manifold to front
support bracket (Fig. 105). Torque to 28 N´m (250 in.
lbs.).
(6) Install EGR tube. (Refer to 25 - EMISSIONS
CONTROL/EXHAUST GAS RECIRCULATION/
TUBE - INSTALLATION)
(7) Install throttle cables in bracket.
(8) Connect throttle and speed control (if equipped)
cables to throttle lever.
(9) Connect vacuum lines for power brake booster,
LDP, EGR transducer, and speed control vacuum res-
ervoir (if equipped) at upper intake manifold fittings.
(10) Connect vacuum lines for purge solenoid and
PCV valve.
(11) Connect electrical connectors for MAP sensor,
throttle position sensor (TPS), and idle air control
(IAC) motor.
(12) Install air cleaner upper housing and air
intake tube to throttle body.
(13) Connect inlet air temperature sensor connec-
tor (Fig. 102).
(14) Connect negative cable to battery.
Fig. 104 Throttle Body Electrical Connectors -
Typical
1 - IDLE AIR CONTROL MOTOR CONNECTOR
2 - TPS CONNECTOR
Fig. 105 Upper Intake Manifold Support Bracket
1 - NUT - BRACKET TO CYLINDER HEAD COVER
2 - BOLT - BRACKET TO UPPER INTAKE MANIFOLD
3 - UPPER INTAKE MANIFOLD SUPPORT BRACKET
Fig. 106 Upper Intake Manifold Tightening Sequence
- 2.4L
RSENGINE 2.4L9-59
INTAKE MANIFOLD - UPPER (Continued)
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INTAKE MANIFOLD - LOWER
REMOVAL
(1) Perform fuel system pressure release proce-
durebefore attempting any repairs.(Refer to 14 -
FUEL SYSTEM/FUEL DELIVERY - STANDARD
PROCEDURE)
(2) Remove upper intake manifold. (Refer to 9 -
ENGINE/MANIFOLDS/INTAKE MANIFOLD -
REMOVAL)
CAUTION: Cover intake manifold openings to pre-
vent foreign material from entering engine.
(3) Disconnect fuel line. (Refer to 14 - FUEL SYS-
TEM/FUEL DELIVERY/QUICK CONNECT FIT-
TING - STANDARD PROCEDURE)
(4) Drain the cooling system. (Refer to 7 - COOL-
ING - STANDARD PROCEDURE)
(5) Remove heater supply and radiator upper
hoses at intake manifold.
(6) Disconnect coolant temperature sensor/fuel
injector wire harness connector.
(7) Remove lower intake manifold support bracket
upper bolts (Fig. 107).
(8) Loosen the lower intake manfold support
bracket lower bolt (Fig. 107).
(9) Disconnect fuel injector harness.
(10) Remove the bolts attaching the power steering
reservoir to manifold. Set reservoir aside.Do not
disconnect line from reservoir.
(11) Remove lower intake manifold fasteners (Fig.
108). Remove the manifold from engine.
(12) Inspect the manifold. (Refer to 9 - ENGINE/
MANIFOLDS/INTAKE MANIFOLD - INSPECTION)
INSPECTION
(1) Check manifold surfaces for flatness with
straight edge. Surface must be flat within 0.15 mm
per 300 mm (0.006 in. per foot) of manifold length.
(2) Inspect manifold for cracks or distortion.
Replace manifold if necessary.
INSTALLATION
If the following items were removed, install and
torque to specifications:
²Fuel rail bolts - 22 N´m (200 in. lbs.)
²Coolant outlet connector bolts - 28 N´m (250 in.
lbs.)
²Coolant temperature sensor - 7 N´m (60 in. lbs.)
(1) Position a new gasket on cylinder head and
install lower manifold.
(2) Install and tighten intake manifold fasteners to
28 N´m (250 in. lbs.) in the sequence shown in (Fig.
108). Repeat procedure until all bolts are at specified
torque.
(3) Install lower intake manifold support bracket
bolts (Fig. 107) and tighten to:
²Bolts to intake 28 N´m (250 in. lbs.)
²Bolt to engine block 54 N´m (40 ft. lbs.)
(4) Position power steering reservoir on manifold
and install bolts.
(5) Connect the fuel line. (Refer to 14 - FUEL SYS-
TEM/FUEL DELIVERY/QUICK CONNECT FIT-
TING - STANDARD PROCEDURE)
(6) Connect coolant temperature sensor/fuel injec-
tor wiring harness electrical connector.
(7) Install the radiator upper and heater supply
hoses.
(8) Install the upper intake manifold. (Refer to 9 -
ENGINE/MANIFOLDS/INTAKE MANIFOLD -
INSTALLATION)
(9) Fill the cooling system. (Refer to 7 - COOLING
- STANDARD PROCEDURE)
Fig. 107 Lower Intake Manifold Support Bracket
1 - SUPPORT BRACKET
2 - BOLTS - UPPER TO MANIFOLD
3 - BOLT - LOWER TO ENGINE BLOCK
Fig. 108 Lower Intake Manifold Tightening
Sequence
9 - 60 ENGINE 2.4LRS
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EXHAUST MANIFOLD
REMOVAL
(1) Raise vehicle and disconnect exhaust pipe from
the exhaust manifold.
(2) Disconnect upstream oxygen sensor connector
at the rear of exhaust manifold.
(3) Remove the bolts attaching the manifold to the
cylinder head.
(4) Remove exhaust manifold.
(5) Inspect the manifold. (Refer to 9 - ENGINE/
MANIFOLDS/EXHAUST MANIFOLD - INSPEC-
TION)
CLEANING
(1) Discard gasket (if equipped) and clean all sur-
faces of manifold and cylinder head.
INSPECTION
(1) Inspect manifold gasket surfaces for flatness
with straight edge. Surface must be flat within 0.15
mm per 300 mm (0.006 in. per foot) of manifold
length.
(2) Inspect manifolds for cracks or distortion.
Replace manifold as necessary.
INSTALLATION
(1) Install exhaust manifold with a new gasket.
Tighten attaching nuts in the sequence shown in
(Fig. 109) to 19 N´m (170 in. lbs.).
(2) Attach exhaust pipe to exhaust manifold and
tighten fasteners to 37 N´m (27 ft. lbs.).
(3) Install and connect the oxygen sensor. (Refer to
14 - FUEL SYSTEM/FUEL INJECTION/O2 SENSOR
- COMPONENT LOCATION)
TIMING BELT COVER(S)
REMOVAL
FRONT COVER - UPPER
(1) Remove upper timing belt cover fasteners (Fig.
110) and remove cover.
FRONT COVER - LOWER
(1) Remove crankshaft vibration damper (Refer to
9 - ENGINE/ENGINE BLOCK/VIBRATION
DAMPER - REMOVAL).
(2) Remove generator drive belt tensioner assem-
bly (Refer to 7 - COOLING/ACCESSORY DRIVE/
BELT TENSIONERS - REMOVAL).
(3) Remove timing belt front cover bolts (Fig. 110)
and remove covers.
REAR COVER
(1) Remove front covers.
(2) Remove engine mount bracket (Fig. 111).
(3) Remove timing belt (Refer to 9 - ENGINE/
VALVE TIMING/TIMING BELT AND SPROCKETS -
REMOVAL).
Fig. 109 Exhaust Manifold Tightening Sequence
Fig. 110 Front Timing Belt Covers
1 - BOLTS - UPPER FRONT COVER 6 N´m (50 in. lbs.)
2 - BOLTS - LOWER FRONT COVER 6 N´m (50 in. lbs.)
RSENGINE 2.4L9-61
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(4) Remove camshaft sprockets. Hold camshaft
sprocket with Special Tool 6847 while removing cen-
ter bolt (Fig. 112).(5) Remove timing belt idler pulley (Fig. 113).
(6) Remove rear cover fasteners and remove cover
from engine (Fig. 114).
INSTALLATION
FRONT COVER - UPPER
(1) Install timing belt cover. Torque fasteners to 6
N´m (50 in. lbs.) (Fig. 110).
FRONT COVER - LOWER
(1) Install timing belt front covers (Fig. 110).
Tighten fasteners to 6 N´m (50 in. lbs.).
(2) Install generator drive belt tensioner (Refer to
7 - COOLING/ACCESSORY DRIVE/BELT TEN-
SIONERS - INSTALLATION).
(3) Install crankshaft vibration damper (Refer to 9
- ENGINE/ENGINE BLOCK/VIBRATION DAMPER -
INSTALLATION).
REAR COVER
(1) Install rear timing belt cover and fasteners.
Torque fasteners to specified values (Fig. 114).
CAUTION: Do not use an impact wrench for tighten-
ing camshaft sprocket bolt. Damage to the timing
locating pin can occur. Hand tighten using a
wrench ONLY.
Fig. 111 Engine Mount Bracket
1 - ENGINE MOUNT BRACKET
2 - BOLTS - 61 N´m (45 ft. lbs.)
Fig. 112 Camshaft Sprocket - Removal/Installation
1 - SPECIAL TOOL 6847
Fig. 113 Timing Belt Idler Pulley
1 - IDLER PULLEY
2 - BOLT
9 - 62 ENGINE 2.4LRS
TIMING BELT COVER(S) (Continued)
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(2) Install camshaft sprockets. Hold sprockets with
Special Tool 6848 and tighten center bolt to 101 N´m
(75 ft. lbs.) (Fig. 112).
(3) Install timing belt idler pulley and tighten
mounting bolt to 61 N´m (45 ft. lbs.) (Fig. 113).
(4) Install timing belt (Refer to 9 - ENGINE/
VALVE TIMING/TIMING BELT AND SPROCKETS -
INSTALLATION).
(5) Install engine mount bracket and tighten bolts
to 61 N´m (45 ft. lbs.) (Fig. 111).
(6) Install front covers.
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/DRIVE BELTS -
REMOVAL).
(7) Remove crankshaft vibration damper (Refer to
9 - ENGINE/ENGINE BLOCK/VIBRATION
DAMPER - REMOVAL).
(8) Remove air conditioner/generator belt tensioner
and pulley assembly (Refer to 7 - COOLING/ACCES-
SORY DRIVE/BELT TENSIONERS - REMOVAL).
(9) Remove timing belt lower front cover bolts and
remove cover (Refer to 9 - ENGINE/VALVE TIMING/
TIMING BELT COVER(S) - REMOVAL).
(10) Lower vehicle.
(11) Remove bolts attaching timing belt upper
front cover and remove cover (Refer to 9 - ENGINE/
VALVE TIMING/TIMING BELT COVER(S) -
REMOVAL).
(12) Remove right engine mount (Refer to 9 -
ENGINE/ENGINE MOUNTING/RIGHT MOUNT -
REMOVAL).
(13) Remove engine mount bracket (Fig. 115).
Fig. 114 Rear Timing Belt Cover Fasteners
1 - M6 BOLTS - 12 N´m (105 in. lbs.)
2 - M8 BOLTS - 28 N´m (250 in. lbs.)
3 - TIMING BELT TENSIONER
Fig. 115 Engine Mount Bracket
1 - ENGINE MOUNT BRACKET
2 - BOLTS - 61 N´m (45 ft. lbs.)
RSENGINE 2.4L9-63
TIMING BELT COVER(S) (Continued)
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CAUTION: When aligning crankshaft and camshaft
timing marks always rotate engine from crankshaft.
Camshaft should not be rotated after timing belt is
removed. Damage to valve components may occur.
Always align timing marks before removing timing
belt.
(14) Before the removal of the timing belt, rotate
crankshaft until the TDC mark on oil pump housing
aligns with the TDC mark on crankshaft sprocket
(trailing edge of sprocket tooth) (Fig. 116).
NOTE: The crankshaft sprocket TDC mark is
located on the trailing edge of the sprocket tooth.
Failure to align trailing edge of sprocket tooth to
TDC mark on oil pump housing will cause the cam-
shaft timing marks to be misaligned.
(15) Loosen timing belt tensioner lock bolt (Fig.
117).
(16) Inserta6mmAllen wrench into the hexagon
opening located on the top plate of the belt tensioner
pulley (Fig. 117). Rotate the top plateCLOCKWISE
until there is enough slack in timing belt to allow for
removal.
(17) Remove timing belt.CAUTION: If timing belt was damaged due to incor-
rect tracking (alignment), the belt tensioner pulley
and bracket must be replaced as an assembly
(Refer to 9 - ENGINE/VALVE TIMING/TIMING BELT
TENSIONER & PULLEY - REMOVAL).
REMOVAL - CAMSHAFT SPROCKETS
(1) Disconnect negative battery cable.
(2) Remove timing belt (Refer to 9 - ENGINE/
VALVE TIMING/TIMING BELT AND SPROCKETS -
REMOVAL).
(3) Hold camshaft sprockets with Special Tool 6847
while removing center bolts (Fig. 118).
REMOVAL - CRANKSHAFT SPROCKET
(1) Disconnect negative battery cable.
(2) Remove timing belt (Refer to 9 - ENGINE/
VALVE TIMING/TIMING BELT AND SPROCKETS -
REMOVAL).
(3) Remove crankshaft sprocket using Special
Tools 6793 and insert C-4685-C2 (Fig. 119).
CLEANING
Do Not attempt to clean a timing belt. If contami-
nation from oil, grease, or coolants have occurred, the
timing belt should be replaced.
Clean all sprockets using a suitable solvent. Clean
all sprocket grooves of any debris.
Fig. 116 Crankshaft and Camshaft Timing
1 - CAMSHAFT TIMING MARKS
2 - CRANKSHAFT TDC MARKS
3 - TRAILING EDGE OF SPROCKET TOOTH
Fig. 117 Timing Belt Tensioner
1 - LOCK BOLT
2 - TOP PLATE
9 - 64 ENGINE 2.4LRS
TIMING BELT AND SPROCKET(S) (Continued)
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