(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. 82).
(3) Remove the through bolt from the mount and
rear mount bracket (Fig. 83).
(4) Remove the mount bolts (Fig. 83).
(5) Remove the rear mount (Fig. 83).
(6) For rear mount bracket removal, remove the
bolts attaching bracket to transaxle (Fig. 84).
(7) Remove rear mount bracket.
Fig. 80 Left Mount To Bracket
1 - BOLT - BRACKET TO FRAME RAIL 68 N´m (50 ft. lbs.)
2 - BOLT - MOUNT TO RAIL THRU 75 N´m (55 ft. lbs.)
3 - BOLT - LEFT MOUNT TO TRANSAXLE 54 N´m (40 ft. lbs.)
4 - TRANSAXLE
5 - MOUNT - LEFT
6 - BRACKET - LEFT MOUNT
Fig. 81 Left Mount - 41TE Transaxle
1 - LEFT MOUNT ASSEMBLY
2 - BOLT - 54 N´m (40 ft. lbs.)
3 - TRANSAXLE - 41TE
Fig. 82 Rear Mount Heat Shield
1 - BOLT - HEAT SHIELD 11 N´m (100 in. lbs.)
2 - HEAT SHIELD
3 - CLIP
4 - REAR MOUNT
Fig. 83 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)
INSTALLATION
(1) Install rear mount bracket, if removed (Fig.
84).
(2) Install the rear mount and bolts (Fig. 83).
Tighten bolts to 54 N´m (40 ft. lbs.).
(3) Install the mount through bolt to the mount
and bracket (Fig. 83). Tighten through bolt to 54 N´m
(40 ft. lbs.).
(4) Install the rear mount heat shield (Fig. 82).
(5) Lower vehicle on hoist.
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 vertical bolts attaching the engine
mount to the frame rail (Fig. 85).
(7) Loosen the horizontal bolt attaching the engine
mount to the frame rail (Fig. 85).
(8) Remove the bolts attaching the engine mount
to the engine bracket (Fig. 85).
(9) Remove the right engine mount (Fig. 85).
INSTALLATION
(1) Position right engine mount and install frame
rail to mount vertical bolts (Fig. 85).
(2) Tighten engine right mount to rail horizontal
bolt (Fig. 85).
(3) Install mount to engine bracket bolts (Fig. 85).
(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.
Fig. 84 Rear Mount Bracket - (all engines)
1 - BOLT - VERTICAL 102 N´m (75 ft. lbs.)
2 - BRACKET - REAR MOUNT3 - BOLT - HORIZONTAL 102 N´m (75 ft. lbs.)
9 - 52 ENGINE 2.4LRS
REAR MOUNT (Continued)
LUBRICATION
DESCRIPTION
The lubrication system is a full-flow filtration,
pressure feed type. The oil pump is mounted in the
front engine cover and driven by the crankshaft.
OPERATION
Engine oil drawn up through the pickup tube and
is pressurized by the oil pump and routed through
the full-flow filter to the main oil gallery running the
length of the cylinder block. A diagonal hole in each
bulkhead feeds oil to each main bearing. Drilled pas-
sages within the crankshaft route oil from main bear-
ing journals to connecting rod journals. Balance shaft
lubrication is provided through an oil passage from
the number one main bearing cap through the bal-
ance shaft carrier support leg. This passage directly
supplies oil to the front bearings and internal
machined passages in the shafts that routes oil from
front to the rear shaft bearing journals. A vertical
hole at the number five bulkhead routes pressurized
oil through a restrictor (integral to the cylinder head
gasket) up past a cylinder head bolt to an oil gallery
running the length of the cylinder head. The cam-shaft journals are partially slotted to allow a prede-
termined amount of pressurized oil to pass into the
bearing cap cavities. Lubrication of the camshaft
lobes are provided by small holes in the camshaft
bearing caps that are directed towards each lobe. Oil
returning to the pan from pressurized components
supplies lubrication to the valve stems. Cylinder
bores and wrist pins are splash lubricated from
directed slots on the connecting rod thrust collars
(Fig. 86).
DIAGNOSIS AND TESTING - CHECKING
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 fitting.
(3) Start engine and record oil pressure. Refer to
Specifications for correct oil pressure requirements.
(Refer to 9 - ENGINE - SPECIFICATIONS)
CAUTION: If oil pressure is 0 at idle, do not perform
the 3000 RPM test
(4) If oil pressure is 0 at idle. Shut off engine,
check for pressure relief valve stuck open, a clogged
oil pick-up screen or a damaged oil pick-up tube
O-ring.
(5) After test is complete, remove test gauge and
fitting.
Fig. 85 Right Mount to Rail and Engine
1 - BOLT - MOUNT TO RAIL 68 N´m (50 ft. lbs.)
2 - BOLT - MOUNT TO ENGINE 54 N´m (40 ft. lbs.)
3 - BOLT - MOUNT TO RAIL (HORIZONTAL) 68 N´m (50 ft. lbs.)
4 - RIGHT ENGINE MOUNT
5 - RIGHT FRAME RAIL
Fig. 86 Engine Lubrication System
RSENGINE 2.4L9-53
RIGHT MOUNT (Continued)
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. 111).
(8) Loosen the lower intake manfold support
bracket lower bolt (Fig. 111).
(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.
112). 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.
112). Repeat procedure until all bolts are at specified
torque.
(3) Install lower intake manifold support bracket
bolts (Fig. 111) 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.
Fig. 111 Lower Intake Manifold Support Bracket
1 - SUPPORT BRACKET
2 - BOLTS - UPPER TO MANIFOLD
3 - BOLT - LOWER TO ENGINE BLOCK
Fig. 112 Lower Intake Manifold Tightening Sequence
9 - 62 ENGINE 2.4LRS
REAR COVER
(1) Install rear timing belt cover and fasteners.
Torque fasteners to specified values (Fig. 118).
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.
(2) Install camshaft sprockets. Hold sprockets with
Special Tool 6848 and tighten center bolt to 101 N´m
(75 ft. lbs.) (Fig. 116).
(3) Install timing belt idler pulley and tighten
mounting bolt to 61 N´m (45 ft. lbs.) (Fig. 117).
(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. 115).
(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. 119).
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. 120).
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.
121).
Fig. 118 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
RSENGINE 2.4L9-65
TIMING BELT COVER(S) (Continued)
(16) Inserta6mmAllen wrench into the hexagon
opening located on the top plate of the belt tensioner
pulley (Fig. 121). 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. 122).
REMOVAL - CRANKSHAFT SPROCKET
(1) Disconnect negative battery cable.(2) Remove timing belt (Refer to 9 - ENGINE/
VALVE TIMING/TIMING BELT AND SPROCKETS -
REMOVAL).
Fig. 119 Engine Mount Bracket
1 - ENGINE MOUNT BRACKET
2 - BOLTS - 61 N´m (45 ft. lbs.)
Fig. 120 Crankshaft and Camshaft Timing
1 - CAMSHAFT TIMING MARKS
2 - CRANKSHAFT TDC MARKS
3 - TRAILING EDGE OF SPROCKET TOOTH
Fig. 121 Timing Belt Tensioner
1 - LOCK BOLT
2 - TOP PLATE
9 - 66 ENGINE 2.4LRS
TIMING BELT AND SPROCKET(S) (Continued)
(7) Rotate the crankshaft CLOCKWISE two com-
plete revolutions manually for seating of the belt,
until the crankshaft is repositioned at the TDC posi-
tion. Verify that the camshaft and crankshaft timing
marks are in proper position (Fig. 128).
(8) Check if the spring tang is within the tolerance
window (Fig. 129). If the spring tang is within the
tolerance window, the installation process is complete
and nothing further is required. If the spring tang is
not within the tolerance window, repeat Steps 5
through 7.
(9) Install engine mount bracket to engine (Fig.
119).
(10) Install timing belt front covers and bolts
(Refer to 9 - ENGINE/VALVE TIMING/TIMING
BELT COVER(S) - INSTALLATION).
(11) Install air conditioning/generator belt ten-
sioner and pulley (Refer to 7 - COOLING/ACCES-
SORY DRIVE/BELT TENSIONERS -
INSTALLATION).
(12) Install right engine mount (Refer to 9 -
ENGINE/ENGINE MOUNTING/RIGHT MOUNT -
INSTALLATION).
(13) Install crankshaft vibration damper (Refer to
9 - ENGINE/ENGINE BLOCK/VIBRATION
DAMPER - INSTALLATION).(14) Install accessory drive belts (Refer to 7 -
COOLING/ACCESSORY DRIVE/DRIVE BELTS -
INSTALLATION).
(15) Install drive belt splash shield.
(16) Install right front wheel.
(17) Connect make-up air hose to cylinder head
cover.
(18) 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 (Fig. 130).
(3) Hold camshaft sprocket with Special Tool 6847
while removing bolt (Fig. 131). Remove both cam
sprockets.
(4) Remove rear timing belt cover fasteners and
remove cover from engine (Fig. 132).
(5) Remove lower bolt attaching timing belt ten-
sioner assembly to engine and remove tensioneras
an assembly(Fig. 133).
Fig. 128 Crankshaft and Camshaft Timing
1 - CAMSHAFT TIMING MARKS
2 - CRANKSHAFT TDC MARKS
3 - TRAILING EDGE OF SPROCKET TOOTH
Fig. 129 Timing Belt Tension Verification
1 - SPRING TANG
2 - TOLERANCE WINDOW
RSENGINE 2.4L9-69
TIMING BELT AND SPROCKET(S) (Continued)
INSPECTION.........................145
ASSEMBLY...........................146
INSTALLATION........................146
INTAKE MANIFOLD
DESCRIPTION........................147
DIAGNOSIS AND TESTING - INTAKE
MANIFOLD LEAKS....................147
INTAKE MANIFOLD - UPPER
STANDARD PROCEDURE
STANDARD PROCEDURE - MANIFOLD
STRIPPED THREAD REPAIR............147
STANDARD PROCEDURE - INTAKE
MANIFOLD VACUUM PORT REPAIR......148
REMOVAL - UPPER INTAKE MANIFOLD.....148
CLEANING...........................148
INSPECTION.........................149
INSTALLATION - UPPER INTAKE MANIFOLD . 149
INTAKE MANIFOLD - LOWER
REMOVAL - LOWER INTAKE MANIFOLD....150
CLEANING...........................151
INSPECTION.........................151
INSTALLATION - LOWER INTAKE MANIFOLD . 151
EXHAUST MANIFOLD - RIGHT
REMOVAL............................152
CLEANING...........................153
INSPECTION.........................153INSTALLATION........................153
EXHAUST MANIFOLD - LEFT
REMOVAL............................154
CLEANING...........................154
INSPECTION.........................155
INSTALLATION........................155
VALVE TIMING
STANDARD PROCEDURE
STANDARD PROCEDURE - VALVE TIMING
VERIFICATION.......................155
STANDARD PROCEDURE - MEASURING
TIMING CHAIN WEAR.................155
TIMING CHAIN COVER
REMOVAL............................156
INSTALLATION........................157
TIMING CHAIN AND SPROCKETS
REMOVAL
REMOVAL - TIMING CHAIN AND
CAMSHAFT SPROCKET...............159
REMOVAL - CRANKSHAFT SPROCKET . . . 159
INSTALLATION
INSTALLATION - CRANKSHAFT
SPROCKET.........................160
INSTALLATION - TIMING CHAIN AND
CAMSHAFT SPROCKET...............160
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).
DIAGNOSIS AND TESTING
DIAGNOSIS AND TESTING - ENGINE
DIAGNOSIS - INTRODUCTION
Engine diagnosis is helpful in determining the
causes of malfunctions not detected and remedied by
routine maintenance.These malfunctions may be classified as either
mechanical (e.g., a strange noise), or performance
(e.g., engine idles rough and stalls).
Refer to the Engine Mechanical and the Engine
Performance diagnostic charts, for possible causes
and corrections of malfunctions (Refer to 9 - ENGINE
- DIAGNOSIS AND TESTING - MECHANICAL)
(Refer to 9 - ENGINE - DIAGNOSIS AND TESTING
- PERFORMANCE).
For fuel system diagnosis, (Refer to 14 - FUEL
SYSTEM/FUEL DELIVERY - DIAGNOSIS AND
TESTING).
Additional tests and diagnostic procedures may be
necessary for specific engine malfunctions that can-
not be isolated with the Service Diagnosis charts.
Information concerning additional tests and diagno-
sis is provided within the following:
²Cylinder Compression Pressure Test
²Cylinder Combustion Pressure Leakage Test
²Engine Cylinder Head Gasket Failure Diagnosis
²Intake Manifold Leakage Diagnosis
²Hydraulic Lash Adjuster Noise Diagnosis
²Engine Oil Leak Inspection
9 - 78 ENGINE 3.3/3.8LRS